83_FR_25993 83 FR 25885 - Airworthiness Directives; The Boeing Company Airplanes

83 FR 25885 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 108 (June 5, 2018)

Page Range25885-25891
FR Document2018-11825

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 767-300 and -300F series airplanes. This AD was prompted by reports of fatigue cracking on airplanes with Aviation Partners Boeing winglets installed. This AD requires high frequency eddy current (HFEC) inspections for cracking of the lower outboard wing skin, and repair or modification if necessary. This AD also requires one of three follow-on actions: Repeating the HFEC inspections, modifying certain internal stringers and oversizing and plugging the existing fastener holes of the lower wing, or modifying the external doubler/tripler and doing repetitive post-modification inspections. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 108 (Tuesday, June 5, 2018)
[Federal Register Volume 83, Number 108 (Tuesday, June 5, 2018)]
[Rules and Regulations]
[Pages 25885-25891]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-11825]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-1421; Product Identifier 2014-NM-177-AD; Amendment 
39-19302; AD 2018-11-14]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model 767-300 and -300F series airplanes. This AD 
was prompted by reports of fatigue cracking on airplanes with Aviation 
Partners Boeing winglets installed. This AD requires high frequency 
eddy current (HFEC) inspections for cracking of the lower outboard wing 
skin, and repair or modification if necessary. This AD also requires 
one of three follow-on actions: Repeating the HFEC inspections, 
modifying certain internal stringers and oversizing and plugging the 
existing fastener holes of the lower wing, or modifying the external 
doubler/tripler and doing repetitive post-modification inspections. We 
are issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective July 10, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of July 10, 
2018.

ADDRESSES: For service information identified in this final rule, 
contact Aviation Partners Boeing, 2811 S. 102nd Street, Suite 200, 
Seattle, WA 98168; telephone 206-762-1171; internet https://www.aviationpartnersboeing.com. You may view this service information 
at the FAA, Transport Standards Branch, 2200 South 216th St., Des 
Moines, WA. For information on the availability of this material at the 
FAA, call 206-231-3195. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
1421.

Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
1421; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the regulatory evaluation, any comments received, and 
other information. The address for Docket Operations (phone: 800-647-
5527) is Docket Operations, U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Allen Rauschendorfer, Aerospace 
Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th 
St., Des Moines, WA; phone and fax: 206-231-3528; email: 
[email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain The Boeing Company 
Model 767-300 and -300F series airplanes. The NPRM published in the 
Federal Register on June 5, 2015 (80 FR 32066). The NPRM was prompted 
by reports of fatigue cracking on airplanes with Aviation Partners 
Boeing winglets installed. The NPRM proposed to require a HFEC 
inspection for cracking of the lower outboard wing skin, and repair or 
modification if necessary. The NPRM also proposed to require one of 
three follow-on actions: Repeating the HFEC inspections, modifying 
certain internal stringers and oversizing and plugging the existing 
fastener holes of the lower wing, or modifying the external doubler/
tripler and doing repetitive post-modification inspections.
    We issued an SNPRM to amend 14 CFR part 39 by adding an AD that 
would apply to certain The Boeing Company Model 767-300 and -300F 
series airplanes. The SNPRM published in the Federal Register on 
November 27, 2017 (82 FR 55958). The SNPRM proposed adding new HFEC 
inspections for cracking of an expanded area of the lower outboard wing 
skin for certain airplanes.
    We are issuing this AD to address fatigue cracking in the lower 
outboard wing skin, which could result in failure and subsequent 
separation of the wing and winglet and consequent reduced 
controllability of the airplane.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. The following presents the comments received on the 
SNPRM and the FAA's response to each comment. One commenter, Matt 
Leritz, supported the content of the SNRPM.

Request To Correct Compliance Time

    Aviation Partners Boeing (APB) and United Airlines (UAL) asked that 
we correct the compliance time in paragraphs (h)(2)(ii) and (h)(3)(ii) 
of the proposed AD (in the SNPRM). The commenters stated that those 
paragraphs would require the initial post-repair HFEC inspection of the 
lower wing skin at stringer L-6.5 at the applicable time specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-014, Revision 1, dated April 12, 2017. The commenters 
added that the compliance time for the Part 3 HFEC inspection specified 
in paragraph 1.E. does not begin after doing the Part 2 repair, but 
instead begins after the initial issue of the service bulletin (after 
the effective date of the AD). UAL stated that, as written, this would 
require doing post-repair inspections on airplanes above the total 
flight-hour and flight-cycle threshold within 18 months after the 
effective date of the AD, regardless of if or when the repair was 
actually done. APB confirmed that the calendar-based compliance time in 
the referenced service information, for airplanes in Group 1, 
Configurations 2 and 3, and Groups 2 and 3, should be the same as for 
airplanes in Group 1, Configuration 1, on which the Part 2 repair has 
been done. The commenters asked that the compliance time for the Part 3 
HFEC inspection be corrected to the following: ``Within 6,000 flight 
cycles after doing the Part 2 repair, or within 18,000 flight hours 
since doing the Part 2 repair, whichever occurs first.''
    We agree with the commenters' request for the reasons provided. We 
have added paragraph (j)(3) of this AD to include this compliance-time 
exception.

Request To Remove a Certain Terminating Action

    Boeing asked that we remove the terminating action sentence at the 
end of paragraph (g)(2) of the proposed AD (in the SNPRM). Paragraph 
(g)(2) of the proposed AD (in the SNPRM) applies to Group 3 airplanes 
with external doublers, and if a crack is found it requires a repair 
using a method

[[Page 25886]]

approved by the FAA. That paragraph also specifies that ``[a]n approved 
repair terminates the repetitive inspections required by paragraph 
(g)(2) of this AD.'' Boeing stated that any repair for cracks found 
will require follow-on repetitive inspections, which would be approved 
as part of the AMOC repair approval process.
    We agree that the repairs for Group 3 airplanes will have an 
approved follow-on inspection program, but the repairs may apply to the 
cracked areas only. We do not agree with removing the terminating 
action provision because other areas may require the repetitive 
inspections specified in paragraph (g)(2) of this AD, for which 
approved terminating action would be appropriate. We have revised that 
sentence as follows: ``An approved repair terminates the repetitive 
inspections required by paragraph (g)(2) of this AD for the repaired 
area only.''

Request To Add Grace Period for Post-Repair (Modification) Inspections

    American Airlines (AAL), APB, UAL, and Delta Airlines (Delta) asked 
that we add a grace period for the proposed post-repair (modification) 
inspections.
    AAL stated that Table 4 of paragraph 1.E., ``Compliance,'' of 
Aviation Partners Boeing Service Bulletin AP767-57-010, Revision 11, 
dated April 3, 2017, includes numerous inspections that are due within 
a specified number of flight hours or flight cycles after previous 
repair or modification of the airplane. AAL added that since it has 
completed many repairs and modifications using previous revisions of 
the referenced service information, there will be airplanes out of 
compliance with the AD requirements on the effective date because there 
is no grace period based on the AD due date.
    APB and Delta stated that paragraph (g) of the proposed AD (in the 
SNPRM) specifies compliance times specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-57-
010, Revision 11, dated April 3, 2017, for initial post-repair 
inspections. APB added that the referenced service information added a 
flight-hour threshold of 90,000 total flight cycles to the existing 
flight-cycle threshold of 30,000 total flight cycles for the initial 
compliance time. APB noted that the grace period published in the 
referenced service information for airplanes on which the flight-hour 
or flight-cycle threshold has been reached is set to 18 months after 
accomplishment of the repair. APB stated that this creates a drop-dead 
inspection situation for airplanes on which either the flight-hour or 
flight-cycle threshold has been reached, and on which the Part 8 or 
Part 11 repair was accomplished over 18 months ago. Delta stated that 
the compliance table on pages (i) and (ii) of Aviation Partners Boeing 
Service Bulletin AP767-57-010, Revision 11, dated April 3, 2017, should 
be added to paragraph 1.E., ``Compliance'' and included in the AD.
    UAL stated that paragraph (g) of the proposed AD (in the SNPRM) 
would require the repetitive post-repair inspections specified in Parts 
9 and 13 of Aviation Partners Boeing Service Bulletin AP767-57-010, 
Revision 11, dated April 3, 2017, in airplane total times or within 18 
months after accomplishment of Part 8 and 11 repairs, respectively. UAL 
is concerned that older airplanes on which the repair was done more 
than 18 months ago could be out of compliance on the effective date of 
the AD. UAL noted that the 18-month grace period covers the initial 
inspection, but does not cover post-repair inspections. UAL suggested 
that we provide similar relief for airplanes on which the threshold has 
been exceeded.
    We do not agree with the commenters' requests to add a grace 
period. The current revisions of the referenced service information 
provide a compliance time of 18 months for the initial inspection for 
all airplanes. The compliance times for certain conditional inspections 
are in terms of airplane threshold or time since accomplishment of the 
specified repair or modification. Those previously installed repairs or 
modifications may have been done using a version of Aviation Partners 
Boeing Service Bulletin AP767-57-010 before Revision 11 or alternative 
method, and may involve deviations, additional repair activity, and 
previous repairs. Under the provisions of paragraph (k) of this AD, we 
will consider requests for approval of AMOCs to extend the compliance 
time if sufficient data are submitted to substantiate that it would 
provide an acceptable level of safety. We have determined that each 
situation must be handled separately in the AMOC evaluation. We have 
not changed this AD in this regard.

Request To Add Compliance Tables to Certain Service Information

    Delta asked that a compliance table be added to Aviation Partners 
Boeing Service Bulletin AP767-57-014, Revision 1, dated April 12, 2017, 
for airplanes on which the actions specified in Aviation Partners 
Boeing Service Bulletin AP767-57-010 have been previously accomplished. 
Delta noted that page i of Aviation Partners Boeing Service Bulletin 
AP767-57-014, Revision 1, dated April 12, 2017, provides a compliance 
information table only for Group 3 airplanes; there are no tables for 
Groups 1 and 2 airplanes.
    We do not agree with the commenter's request. The compliance 
information table on page i of Aviation Partners Boeing Service 
Bulletin AP767-57-014, Revision 1, dated April 12, 2017, provides only 
a description of additional work, if any, necessary based on work 
accomplished using the previous revision. These tables are reference 
information only, and do not reflect all the actions required by the 
AD. The necessary compliance tables are provided in paragraph 1.E., 
``Compliance'' of Aviation Partners Boeing Service Bulletin AP767-57-
014, Revision 1, dated April 12, 2017. Therefore, we have not changed 
this AD in this regard.

Request To Clarify Group 4 Airplanes Not Affected

    UAL asked that we include a clarification in the proposed AD (in 
the SNPRM) that Group 4 airplanes are not affected. UAL stated that 
Group 4 airplanes are identified in the effectivity table in paragraph 
1.A. of Aviation Partners Boeing Service Bulletin AP767-57-010, 
Revision 11, dated April 3, 2017. UAL noted that an equivalent change 
to the service information was incorporated during winglet installation 
with no additional work being necessary. UAL asked that we add 
paragraph (g)(3) to the AD to clarify that Group 4 airplanes are not 
affected by the requirements in the AD.
    We agree with the commenter for the reasons provided. Aviation 
Partners Boeing Service Bulletin AP767-57-010, Revision 11, dated April 
3, 2017, specifies that an equivalent change has been incorporated in 
APB winglet retrofit kits for Group 4 airplanes, and that no more work 
is necessary on those airplanes. We have included a clarification in 
paragraph (g)(3) of this AD that specifies that Group 4 airplanes are 
not affected by the actions required by paragraph (g) of this AD.

Request To Remove an Airplane Having a Certain Line Number

    FedEx asked that we remove the airplane having line number 1027 
from the applicability in the proposed AD (in the SNPRM), or allow 
Aviation Partners Boeing Service Bulletin AP767-57-012, dated September 
2015, as an AMOC. FedEx stated that it will be modifying that airplane 
by removing the winglets and installing Boeing wing tips in accordance 
with Aviation Partners Boeing Service Bulletin AP767-57-012,

[[Page 25887]]

dated September 2015. FedEx anticipated that the modification will be 
completed prior to the effective date of the AD. FedEx added that the 
unsafe condition will be addressed when the winglets are removed.
    We do not agree with the commenter's request. There are many 
factors that led to the cracking of the lower wing skin, and the 
additional loading of the winglet is only one of those factors. Other 
contributory factors are design details with the added internal wing 
structure, which resulted in shortening the fatigue life of the blended 
winglet installation. We have not changed this AD in this regard.

Request Approval for Alternative Open Hole HFEC Inspection

    UAL asked that provisions be added to paragraph (g) of the proposed 
AD (in the SNPRM) to allow an alternative open-hole HFEC inspection 
procedure to inspect for cracking at the five inboard fastener 
locations. UAL stated that an open-hole HFEC inspection with the 
fasteners removed, in accordance with nondestructive test (NDT) Part 6, 
Chapter 51-00-16, using the same notch sensitivity provides an 
equivalent crack detection method. UAL added that APB has concurred 
with the inspection. UAL concluded that it has been performing the 
optional preventive modification, which trims out the skin containing 
the five fastener holes, and allows for the open-hole HFEC to be 
performed easily because the fasteners in the doubler are removed.
    We do not agree with the commenter's request. Although UAL 
developed an inspection method that works better for its situation, the 
HFEC inspection specified in the referenced service information is 
required by this AD to address all situations. However, under the 
provisions of paragraph (k) of this AD, we will consider requests for 
approval of AMOCs if sufficient data are submitted to substantiate that 
the open-hole HFEC inspection procedure provides an acceptable level of 
safety. We have not changed this AD in this regard.

Request To Clarify Credit for Previously Accomplished Repairs Approved 
by an Organization Designation Authorization (ODA)

    All Nippon Airways (ANA), AAL, APB, and Delta asked that we clarify 
credit in paragraph (i) of the proposed AD (in the SNPRM), for 
previously accomplished repairs approved by a Boeing ODA prior to June 
15, 2017.
    ANA stated that during discussions with the FAA, it was informed 
that repair deviations approved by Boeing ODAs prior to the FAA 
approval of the APB revised fatigue analysis issued on June 15, 2017, 
and the release of Aviation Partners Boeing Service Bulletins AP767-57-
010, Revision 11, AP767-57-013, Revision 1, and AP767-57-014, Revision 
1, do not qualify for AMOC credit to the AD after it is released. ANA 
added that the proposed AD (in the SNPRM) would provide AMOC credit for 
repair deviations approved by Boeing ODAs with 8100-9 forms dated after 
June 15, 2017, because the Boeing ODAs would be using the APB revised 
fatigue analysis.
    AAL stated that paragraph (i) of the proposed AD (in the SNPRM) 
specifies that repairs accomplished before June 15, 2017, and before 
the AD effective date approved by a Boeing ODA can be considered 
approved repairs in accordance with paragraphs (g) and (h) of the 
proposed AD (in the SNPRM). AAL added that Boeing has indicated through 
Multi-Operator Message MOM-MOM-17-0480-01B that repairs approved prior 
to June 15, 2017, can be re-evaluated and approved on a new 8100-9 
form. AAL noted that the language in paragraph (i) should be clarified 
to indicate that repairs accomplished prior to June 15, 2017, are also 
acceptable, as long as they have an 8100-9 approval from a Boeing ODA 
dated after June 15, 2017.
    APB requested that we clarify paragraph (i) of the proposed AD (in 
the SNPRM) to state that accomplishment of previous revisions of 
Aviation Partners Boeing Service Bulletins AP767-57-010 should be 
acceptable for credit for previously accomplished repairs and 
modifications of the lower outboard wing skin. APB stated that after 
the effective date of the AD, operators that did not seek relief for 
previously completed actions would need to request approval of AMOCs.
    Delta stated that paragraph (i) of the proposed AD (in the SNPRM) 
provides repair approval for repairs of the lower outboard wing skin 
done after June 15, 2017, and before the effective date of the AD, that 
are approved by the Boeing ODA authorized by the Manager, Seattle ACO 
Branch, are approved for the applicable repairs required by paragraphs 
(g) and (h) of the AD. Delta added that prior to issuance of the 
referenced service information, both inspection and repair instructions 
for stringers L-9.5 and L-6.5 were contained in Revisions 1, 2, 4, 6, 
7, 8, and 9 of Aviation Partners Boeing Service Bulletin AP767-57-010. 
Delta added that it has performed many inspections and repairs for 
stringers L-9.5 and L-6.5 with those revisions. Delta suggested that 
credit be provided for repairs approved by a Boeing 8100-9 or 
previously accomplished using Revisions 1, 2, 4, 6, 7, 8, and 9 of 
Aviation Partners Boeing Service Bulletin AP767-57-010. Delta added 
that AMOCs will have to be obtained for each approved 8100-9 if no 
credit is provided.
    We agree to clarify the language in paragraph (i) of this AD to 
include certain language provided by the commenters' for the reasons 
provided. We have clarified the language in paragraph (i) of this AD by 
adding that the ODA repairs approved after June 15, 2017, and before 
the effective date of this AD, will have post-installation inspection 
requirements in lieu of the post-inspection instructions specified in 
Aviation Partners Boeing Service Bulletin AP767-57-010, Revision 11, 
dated April 3, 2017; and Aviation Partners Boeing Service Bulletin 
AP767-57-014, Revision 1, dated April 12, 2017.

Request To Correct Error in Service Information

    APB and UAL asked that we correct an error specified in Part 13 of 
Aviation Partners Boeing Service Bulletin AP767-57-010, Revision 11, 
dated April 3, 2017.
    APB and UAL stated that paragraphs (g)(1)(i)(D)(2), 
(g)(1)(ii)(B)(2), and (g)(1)(iii)(B)(2) of the proposed AD (in the 
SNPRM) would require the post-repair HFEC inspection in accordance with 
Part 13 of the referenced service information. UAL stated that Part 13, 
Step 1.d., specifies repeating the Part 9 HFEC inspection; however, it 
should specify repeating the Part 13 HFEC inspection because Part 9 
applies to airplanes without the stringer replacement. UAL noted that 
the paragraphs in the proposed AD (in the SNPRM) correctly specify 
repeating the Part 13 HFEC inspection. UAL added that the steps in the 
referenced service information are listed as RC (required for 
compliance), and must be done to comply with the AD.
    We agree that the error exists in the service information. We have 
added an exception in paragraph (j)(4) of this AD that specifies 
repeating the Part 13 HFEC inspection instead of the Part 9 inspection.

Request To Provide Credit for Previous Service Information

    AAL, UAL, and United Parcel Service (UPS) asked that we provide 
credit for doing the modification required by paragraph (i) of the 
proposed AD (in the SNPRM) using previous revisions of the referenced 
service information. UAL and UPS noted that paragraph (i) of the

[[Page 25888]]

proposed AD (in the NPRM), which provided credit for previous actions 
using previous revisions of the referenced service information, was 
deleted in the SNPRM.
    We do not agree with the commenters' requests. No credit is given 
for previously installed repairs or modifications due to each situation 
being unique; therefore, a re-evaluation will have to be done and may 
involve additional work for certain airplanes. Under the provisions of 
paragraph (k) of this AD, we will consider requests for approval of 
AMOCs if sufficient data are submitted to substantiate that work done 
using previous revisions of the service information provides an 
acceptable level of safety. We have not changed this AD in this regard.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this final rule with the changes described previously and minor 
editorial changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
SNPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the SNPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this final 
rule.

Related Service Information Under 1 CFR Part 51

    We reviewed APB Service Bulletin AP767-57-010, Revision 11, dated 
April 3, 2017. The service information describes procedures for an HFEC 
inspection for cracking of the external surface of the lower outboard 
wing skin at stringer L-9.5, and on-condition actions that include 
repetitive HFEC inspections, modification by oversizing and plugging 
the existing fastener holes of the wing skin, repair (modification) of 
the stringer with new stringer, and repair (modification) of the 
stringer with external doubler/tripler; repetitive post-repair 
inspections for cracking, and repair.
    We also reviewed APB Service Bulletin AP767-57-014, Revision 1, 
dated April 12, 2017. The service information describes procedures for 
an HFEC inspection for cracking of the lower outboard wing skin at 
stringer L-6.5 and on-condition actions that include repetitive HFEC 
inspections, repair (modification) of the stringer with new stringer, 
repetitive post-repair HFEC inspections for cracking, and repair.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

Costs of Compliance

    We estimate that this AD affects 140 airplanes of U.S. registry. We 
estimate the following costs to comply with this AD:

                                        Estimated Costs--Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
HFEC Inspections......................  6 work-hours x $85 per                $0            $510         $71,400
                                         hour = $510.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary on-condition 
actions that would be required based on the results of the inspection. 
We have no way of determining the number of aircraft that might need 
these on-condition actions.

                                      Estimated Costs--On-Condition Actions
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Post-repair Inspections.......................  6 work-hours x $85 per hour =                 $0            $510
                                                 $510 per inspection cycle.
Repair/Modification...........................  262 work-hours x $85 per hour =                0          22,270
                                                 $22,270.
----------------------------------------------------------------------------------------------------------------

    We have received no definitive data that would enable us to provide 
cost estimates for on-condition repairs for the post-repair inspections 
specified in this AD.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII: Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701: ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to transport category airplanes and 
associated appliances to the Director of the System Oversight Division.

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,

[[Page 25889]]

    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2018-11-14 The Boeing Company: Amendment 39-19302; Docket No. FAA-
2015-1421; Product Identifier 2014-NM-177-AD.

(a) Effective Date

    This AD is effective July 10, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 767-300 and -300F 
series airplanes, certificated in any category, with Aviation 
Partners Boeing winglets installed; as identified in Aviation 
Partners Boeing Service Bulletin AP767-57-010, Revision 11, dated 
April 3, 2017; and Aviation Partners Boeing Service Bulletin AP767-
57-014, Revision 1, dated April 12, 2017.

(d) Subject

    Air Transport Association (ATA) of America Code 57, Wings.

(e) Unsafe Condition

    This AD was prompted by reports of fatigue cracking in the lower 
outboard wing skin at the inboard fastener of stringer L-9.5, and 
the lower outboard wing skin of stringer L-6.5, on airplanes with 
winglets installed per Supplemental Type Certificate ST01920SE. We 
are issuing this AD to prevent fatigue cracking in the lower 
outboard wing skin, which could result in failure and subsequent 
separation of the wing and winglet and consequent reduced 
controllability of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Repetitive Stringer L-9.5 Inspections, Modification, Repair 
(Modification), Repetitive Post-Repair Inspections, and Repair

    (1) For Group 1 and Group 2 airplanes identified in Aviation 
Partners Boeing Service Bulletin AP767-57-010, Revision 11, dated 
April 3, 2017: At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017, except as required by 
paragraph (j)(1) of this AD: Do a high frequency eddy current (HFEC) 
inspection for cracking of the lower outboard wing skin at stringer 
L-9.5, in accordance with Part 1 of the Accomplishment Instructions 
of Aviation Partners Boeing Service Bulletin AP767-57-010, Revision 
11, dated April 3, 2017.
    (i) For airplanes on which ``Condition 1'' is found, as defined 
in the Accomplishment Instructions of Aviation Partners Boeing 
Service Bulletin AP767-57-010, Revision 11, dated April 3, 2017, 
during any inspection required by paragraph (g)(1) or (g)(1)(i)(A) 
of this AD: Do the applicable actions required by paragraph 
(g)(1)(i)(A), (g)(1)(i)(B), (g)(1)(i)(C), or (g)(1)(i)(D) of this 
AD.
    (A) Repeat the inspection specified in paragraph (g)(1) of this 
AD thereafter at the applicable times specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017.
    (B) Do the applicable actions required by paragraphs 
(g)(1)(i)(B)(1), (g)(1)(i)(B)(2), and (g)(1)(i)(B)(3) of this AD.
    (1) Before further flight, do actions (modifications and repair 
(modification)) in accordance with Part 2, Part 3, Part 4, and Part 
5, as applicable, of the Accomplishment Instructions of Aviation 
Partners Boeing Service Bulletin AP767-57-010, Revision 11, dated 
April 3, 2017.
    (2) For airplanes on which the repair (modification) specified 
in Part 5 of Aviation Partners Boeing Service Bulletin AP767-57-010 
was done: At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017, do a post-repair HFEC 
inspection for cracking, in accordance with Part 12 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017.
    (3) If any crack is found during any inspection required by 
paragraph (g)(1)(i)(B)(2) of this AD, repair before further flight 
using a method approved in accordance with the procedures specified 
in paragraph (k) of this AD.
    (C) Do the actions required by paragraphs (g)(1)(i)(C)(1) and 
(g)(1)(i)(C)(2) of this AD, and do all applicable actions required 
by paragraph (g)(1)(i)(C)(3) of this AD.
    (1) Before further flight, repair (modify) in accordance with 
Part 8 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017.
    (2) At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017, do a post-repair HFEC 
inspection for cracking, in accordance with Part 9 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017.
    (3) If any crack is found during any inspection required by 
paragraph (g)(1)(i)(C)(2) of this AD, repair before further flight 
using a method approved in accordance with the procedures specified 
in paragraph (k) of this AD.
    (D) Do the actions required by paragraphs (g)(1)(i)(D)(1) and 
(g)(1)(i)(D)(2) of this AD, and do all applicable actions required 
by paragraph (g)(1)(i)(D)(3) of this AD.
    (1) Before further flight, repair (modify) in accordance with 
Part 11 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017.
    (2) At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017, do a post-repair HFEC 
inspection for cracking, in accordance with Part 13 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; except as 
required by paragraph (j)(4) of this AD.
    (3) If any crack is found during any inspection required by 
paragraph (g)(1)(i)(D)(2) of this AD, repair before further flight 
using a method approved in accordance with the procedures specified 
in paragraph (k) of this AD.
    (ii) For airplanes on which ``Condition 2'' is found, as defined 
in the Accomplishment Instructions of Aviation Partners Boeing 
Service Bulletin AP767-57-010, Revision 11, dated April 3, 2017, 
during any inspection required by paragraph (g)(1) or (g)(1)(i)(A) 
of this AD: Do the actions required by paragraph (g)(1)(ii)(A) or 
(g)(1)(ii)(B) of this AD.
    (A) Do the actions required by paragraphs (g)(1)(ii)(A)(1) and 
(g)(1)(ii)(A)(2) of this AD, and do all applicable actions required 
by paragraph (g)(1)(ii)(A)(3) of this AD.
    (1) Before further flight, repair (modify) in accordance with 
Part 8 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017.
    (2) At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-

[[Page 25890]]

010, Revision 11, dated April 3, 2017, do a post-repair HFEC 
inspection for cracking, in accordance with Part 9 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017.
    (3) If any crack is found during any inspection required by 
paragraph (g)(1)(ii)(A)(2) of this AD, repair before further flight 
using a method approved in accordance with the procedures specified 
in paragraph (k) of this AD.
    (B) Do the actions required by paragraphs (g)(1)(ii)(B)(1) and 
(g)(1)(ii)(B)(2) of this AD, and do all applicable actions required 
by paragraph (g)(1)(ii)(B)(3) of this AD.
    (1) Before further flight, repair (modify) in accordance with 
Part 11 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017.
    (2) At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017, do a post-repair HFEC 
inspection for cracking, in accordance with Part 13 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; except as 
required by paragraph (j)(4) of this AD.
    (3) If any crack is found during any inspection required by 
paragraph (g)(1)(ii)(B)(2) of this AD, repair before further flight 
using a method approved in accordance with the procedures specified 
in paragraph (k) of this AD.
    (iii) For airplanes on which ``Condition 3'' is found, as 
defined in the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017, during the actions specified in paragraph (g)(1)(i)(B)(1) of 
this AD: Do the actions required by paragraph (g)(1)(iii)(A) or 
(g)(1)(iii)(B) of this AD.
    (A) Do the actions required by paragraphs (g)(1)(iii)(A)(1) and 
(g)(1)(iii)(A)(2) of this AD, and do all applicable actions required 
by paragraph (g)(1)(iii)(A)(3) of this AD.
    (1) Before further flight, repair (modify) in accordance with 
Part 8 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017.
    (2) At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017, do a post-repair HFEC 
inspection for cracking, in accordance with Part 9 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017.
    (3) If any crack is found during any inspection required by 
paragraph (g)(1)(iii)(A)(2) of this AD, repair before further flight 
using a method approved in accordance with the procedures specified 
in paragraph (k) of this AD.
    (B) Do the actions required by paragraphs (g)(1)(iii)(B)(1) and 
(g)(1)(iii)(B)(2) of this AD, and do all applicable actions required 
by paragraph (g)(1)(iii)(B)(3) of this AD.
    (1) Before further flight, repair (modify) in accordance with 
Part 11 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017.
    (2) At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Aviation Partners Boeing Service Bulletin AP767-
57-010, Revision 11, dated April 3, 2017, do a post-repair HFEC 
inspection for cracking, in accordance with Part 13 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017; except as 
required by paragraph (j)(4) of this AD.
    (3) If any crack is found during any inspection required by 
paragraph (g)(1)(iii)(B)(2) of this AD, repair before further flight 
using a method approved in accordance with the procedures specified 
in paragraph (k) of this AD.
    (iv) For airplanes on which ``Condition 4'' is found, as defined 
in the Accomplishment Instructions of Aviation Partners Boeing 
Service Bulletin AP767-57-010, Revision 11, dated April 3, 2017, 
during any action specified in paragraph (g)(1)(i)(C)(1), 
(g)(1)(i)(D)(1) (g)(1)(ii)(A)(1), (g)(1)(ii)(B)(1), 
(g)(1)(iii)(A)(1), and (g)(1)(iii)(B)(1) of this AD: Repair before 
further flight using a method approved in accordance with the 
procedures specified in paragraph (k) of this AD.
    (2) For Group 3 airplanes identified in Aviation Partners Boeing 
Service Bulletin AP767-57-010, Revision 11, dated April 3, 2017: At 
the applicable time specified in paragraph 1.E., ``Compliance,'' of 
Aviation Partners Boeing Service Bulletin AP767-57-010, Revision 11, 
dated April 3, 2017, or within 6 months after the effective date of 
this AD, whichever occurs later, do an HFEC inspection for cracking 
of the lower outboard wing skin at stringer L-9.5, in accordance 
with Part 7 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017. Repeat the inspection thereafter at the applicable time 
specified in paragraph 1.E., ``Compliance,'' of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017. If any cracking is found during any inspection, repair before 
further flight using a method approved in accordance with the 
procedures specified in paragraph (k) of this AD. An approved repair 
terminates the repetitive inspections required by paragraph (g)(2) 
of this AD for the repaired area only.
    (3) Group 4 airplanes identified in Aviation Partners Boeing 
Service Bulletin AP767-57-010, Revision 11, dated April 3, 2017, are 
not affected by the actions required by paragraph (g) of this AD.

(h) Repetitive Stringer L-6.5 Inspections, Repair (Modification), 
Repetitive Post-Repair Inspections, and Repair

    (1) For airplanes identified in Boeing Service Bulletin AP767-
57-014, Revision 1, dated April 12, 2017: At the applicable time 
specified in paragraph 1.E., ``Compliance,'' of Aviation Partners 
Boeing Service Bulletin AP767-57-014, Revision 1, dated April 12, 
2017, except as required by paragraph (j)(2) of this AD: Do an HFEC 
inspection for cracking of stringer L-6.5 of the lower outboard wing 
skin, in accordance with Part 1 of Aviation Partners Boeing Service 
Bulletin AP767-57-014, Revision 1, dated April 12, 2017. If no 
cracking is found, repeat the inspection thereafter at the 
applicable times specified in paragraph 1.E., ``Compliance,'' of 
Aviation Partners Boeing Service Bulletin AP767-57-014, Revision 1, 
dated April 12, 2017, except as provided by paragraph (h)(3) of this 
AD.
    (2) If any crack is found during any inspection required by 
paragraph (h)(1) of this AD, do the actions required by paragraphs 
(h)(2)(i) and (h)(2)(ii) of this AD, and do all applicable actions 
required by paragraph (h)(2)(iii) of this AD.
    (i) Before further flight, repair (modify) stringer L-6.5, in 
accordance with Part 2 of the Accomplishment Instructions of 
Aviation Partners Boeing Service Bulletin AP767-57-014, Revision 1, 
dated April 12, 2017.
    (ii) Except as required by paragraph (j)(3) of this AD: At the 
applicable time specified in paragraph 1.E., ``Compliance,'' of 
Aviation Partners Boeing Service Bulletin AP767-57-014, Revision 1, 
dated April 12, 2017, except as required by paragraph (j)(2) of this 
AD, do an HFEC post-repair inspection for cracking, in accordance 
with Part 3 of the Accomplishment Instructions of Aviation Partners 
Boeing Service Bulletin AP767-57-014, Revision 1, dated April 12, 
2017, and repeat the inspection thereafter at the applicable times 
specified in paragraph 1.E., ``Compliance,'' of Aviation Partners 
Boeing Service Bulletin AP767-57-014, Revision 1, dated April 12, 
2017.
    (iii) If any crack is found during any inspection required by 
paragraph (h)(2)(ii) of this AD, repair before further flight using 
a method approved in accordance with the procedures specified in 
paragraph (k) of this AD.
    (3) As an option to the repetitive inspections required by 
paragraph (h)(1) of this AD, do the actions required by paragraphs 
(h)(3)(i) and (h)(3)(ii) of this AD, and do all applicable actions 
required by paragraph (h)(3)(iii) of this AD.
    (i) Before further flight after accomplishing the most recent 
inspection required by paragraph (h)(1) of this AD, repair (modify) 
stringer L-6.5, in accordance with Part 2 of the Accomplishment 
Instructions of Aviation Partners Boeing Service Bulletin AP767-57-
014, Revision 1, dated April 12, 2017.
    (ii) Except as required by paragraph (j)(3) of this AD: At the 
applicable time specified

[[Page 25891]]

in paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing 
Service Bulletin AP767-57-014, Revision 1, dated April 12, 2017, 
except as required by paragraph (j)(2) of this AD, do a post-repair 
HFEC inspection for cracking, in accordance with Part 3 of the 
Accomplishment Instructions of Aviation Partners Boeing Service 
Bulletin AP767-57-014, Revision 1, dated April 12, 2017, and repeat 
the inspection thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Aviation Partners Boeing Service 
Bulletin AP767-57-014, Revision 1, dated April 12, 2017.
    (iii) If any crack is found during any inspection required by 
paragraph (h)(3)(ii) of this AD, repair before further flight using 
a method approved in accordance with the procedures specified in 
paragraph (k) of this AD.

(i) Repair Approval

    Repairs of the lower outboard wing skin that were approved after 
June 15, 2017, and before the effective date of this AD, by the 
Boeing Commercial Airplanes Organization Designation Authorization 
(ODA) that has been authorized by the Manager, Seattle ACO Branch, 
are approved for the applicable repairs required by paragraphs (g) 
and (h) of this AD. The ODA repairs will have post-installation 
inspection requirements in lieu of the post-inspection instructions 
specified in Aviation Partners Boeing Service Bulletin AP767-57-010, 
Revision 11, dated April 3, 2017; and Aviation Partners Boeing 
Service Bulletin AP767-57-014, Revision 1, dated April 12, 2017.

(j) Exceptions to Service Information Specifications

    (1) Where paragraph 1.E., ``Compliance,'' of Aviation Partners 
Boeing Service Bulletin AP767-57-010, Revision 11, dated April 3, 
2017, specifies a compliance time ``after the issue date of Revision 
11 of this service bulletin,'' this AD requires compliance within 
the specified compliance time after the effective date of this AD.
    (2) Where paragraph 1.E., ``Compliance,'' of Aviation Partners 
Boeing Service Bulletin AP767-57-014, Revision 1, dated April 12, 
2017, specifies a compliance time ``after the initial issue date of 
this service bulletin,'' this AD requires compliance within the 
specified compliance time after the effective date of this AD.
    (3) For Condition 1 and Condition 2 airplanes: Where paragraph 
1.E., ``Compliance,'' of Aviation Partners Boeing Service Bulletin 
AP767-57-014, Revision 1, dated April 12, 2017, specifies a 
compliance time for accomplishing the Part 3 HFEC inspection of 18 
months ``after the initial issue date of this service bulletin,'' 
the required compliance time is 6,000 flight cycles or 18,000 flight 
hours, whichever occurs first, after doing the Part 2 repair.
    (4) For airplanes on which a stringer L-9.5 replacement was 
accomplished per Part 11 of Aviation Partners Boeing Service 
Bulletin AP767-57-010, Revision 11, dated April 3, 2017: Where 
Aviation Partners Boeing Service Bulletin AP767-57-010, Revision 11, 
dated April 3, 2017, specifies repeating the post-repair HFEC 
inspection ``in Part 9,'' this AD requires repeating the post-repair 
HFEC inspection in Part 13.

(k) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle ACO Branch, FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request 
to your principal inspector or local Flight Standards District 
Office, as appropriate. If sending information directly to the 
manager of the certification office, send it to the attention of the 
person identified in paragraph (l) of this AD. Information may be 
emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes ODA that has 
been authorized by the Manager, Seattle ACO Branch, to make those 
findings. To be approved, the repair method, modification deviation, 
or alteration deviation must meet the certification basis of the 
airplane, and the approval must specifically refer to this AD.
    (4) Except as required by paragraphs (g)(1)(i)(B)(3), 
(g)(1)(i)(C)(3), (g)(1)(i)(D)(3), (g)(1)(ii)(A)(3), 
(g)(1)(ii)(B)(3), (g)(1)(iii)(A)(3), (g)(1)(iii)(B)(3), (g)(1)(iv), 
(g)(2), (h)(2)(iii), and (h)(3)(iii) of this AD: For service 
information that contains steps that are labeled as Required for 
Compliance (RC), the provisions of paragraphs (k)(4)(i) and 
(k)(4)(ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. If a step or substep is labeled ``RC Exempt,'' then the 
RC requirement is removed from that step or substep. An AMOC is 
required for any deviations to RC steps, including substeps and 
identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(l) Related Information

    For more information about this AD, contact Allen 
Rauschendorfer, Aerospace Engineer, Airframe Section, FAA, Seattle 
ACO Branch, 2200 South 216th St., Des Moines, WA; phone and fax: 
206-231-3528; email: [email protected].

(m) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Aviation Partners Boeing Service Bulletin AP767-57-010, 
Revision 11, dated April 3, 2017.
    (ii) Aviation Partners Boeing Service Bulletin AP767-57-014, 
Revision 1, dated April 12, 2017.
    (3) For service information identified in this AD, contact 
Aviation Partners Boeing, 2811 S. 102nd Street, Suite 200, Seattle, 
WA 98168; telephone 206-762-1171; internet https://www.aviationpartnersboeing.com.
    (4) You may view this service information at the FAA, Transport 
Standards Branch, 2200 South 216th St., Des Moines, WA. For 
information on the availability of this material at the FAA, call 
206-231-3195.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Des Moines, Washington, on May 21, 2018.
James Cashdollar,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-11825 Filed 6-4-18; 8:45 am]
BILLING CODE 4910-13-P



                                                               Federal Register / Vol. 83, No. 108 / Tuesday, June 5, 2018 / Rules and Regulations                                           25885

                                             Issued in Des Moines, Washington, on May              for and locating Docket No. FAA–2015–                  and winglet and consequent reduced
                                           18, 2018.                                               1421.                                                  controllability of the airplane.
                                           Michael Kaszycki,
                                                                                                   Examining the AD Docket                                Comments
                                           Acting Director, System Oversight Division,
                                           Aircraft Certification Service.                           You may examine the AD docket on                       We gave the public the opportunity to
                                           [FR Doc. 2018–11414 Filed 6–4–18; 8:45 am]              the internet at http://                                participate in developing this final rule.
                                           BILLING CODE 4910–13–P                                  www.regulations.gov by searching for                   The following presents the comments
                                                                                                   and locating Docket No. FAA–2015–                      received on the SNPRM and the FAA’s
                                                                                                   1421; or in person at Docket Operations                response to each comment. One
                                           DEPARTMENT OF TRANSPORTATION                            between 9 a.m. and 5 p.m., Monday                      commenter, Matt Leritz, supported the
                                                                                                   through Friday, except Federal holidays.               content of the SNRPM.
                                           Federal Aviation Administration                         The AD docket contains this final rule,                Request To Correct Compliance Time
                                                                                                   the regulatory evaluation, any
                                           14 CFR Part 39                                          comments received, and other                              Aviation Partners Boeing (APB) and
                                                                                                   information. The address for Docket                    United Airlines (UAL) asked that we
                                           [Docket No. FAA–2015–1421; Product                      Operations (phone: 800–647–5527) is                    correct the compliance time in
                                           Identifier 2014–NM–177–AD; Amendment                    Docket Operations, U.S. Department of                  paragraphs (h)(2)(ii) and (h)(3)(ii) of the
                                           39–19302; AD 2018–11–14]
                                                                                                   Transportation, Docket Operations, M–                  proposed AD (in the SNPRM). The
                                                                                                   30, West Building Ground Floor, Room                   commenters stated that those
                                           RIN 2120–AA64                                                                                                  paragraphs would require the initial
                                                                                                   W12–140, 1200 New Jersey Avenue SE,
                                                                                                   Washington, DC 20590.                                  post-repair HFEC inspection of the
                                           Airworthiness Directives; The Boeing                                                                           lower wing skin at stringer L–6.5 at the
                                           Company Airplanes                                       FOR FURTHER INFORMATION CONTACT:
                                                                                                                                                          applicable time specified in paragraph
                                                                                                   Allen Rauschendorfer, Aerospace                        1.E., ‘‘Compliance,’’ of Aviation Partners
                                           AGENCY:  Federal Aviation                               Engineer, Airframe Section, FAA,
                                           Administration (FAA), DOT.                                                                                     Boeing Service Bulletin AP767–57–014,
                                                                                                   Seattle ACO Branch, 2200 South 216th                   Revision 1, dated April 12, 2017. The
                                           ACTION: Final rule.                                     St., Des Moines, WA; phone and fax:                    commenters added that the compliance
                                                                                                   206–231–3528; email:                                   time for the Part 3 HFEC inspection
                                           SUMMARY:  We are adopting a new
                                                                                                   allen.rauschendorfer@faa.gov.                          specified in paragraph 1.E. does not
                                           airworthiness directive (AD) for certain
                                           The Boeing Company Model 767–300                        SUPPLEMENTARY INFORMATION:                             begin after doing the Part 2 repair, but
                                           and –300F series airplanes. This AD was                 Discussion                                             instead begins after the initial issue of
                                           prompted by reports of fatigue cracking                                                                        the service bulletin (after the effective
                                           on airplanes with Aviation Partners                        We issued a notice of proposed                      date of the AD). UAL stated that, as
                                           Boeing winglets installed. This AD                      rulemaking (NPRM) to amend 14 CFR                      written, this would require doing post-
                                           requires high frequency eddy current                    part 39 by adding an AD that would                     repair inspections on airplanes above
                                           (HFEC) inspections for cracking of the                  apply to certain The Boeing Company                    the total flight-hour and flight-cycle
                                           lower outboard wing skin, and repair or                 Model 767–300 and –300F series                         threshold within 18 months after the
                                           modification if necessary. This AD also                 airplanes. The NPRM published in the                   effective date of the AD, regardless of if
                                           requires one of three follow-on actions:                Federal Register on June 5, 2015 (80 FR                or when the repair was actually done.
                                           Repeating the HFEC inspections,                         32066). The NPRM was prompted by                       APB confirmed that the calendar-based
                                           modifying certain internal stringers and                reports of fatigue cracking on airplanes               compliance time in the referenced
                                           oversizing and plugging the existing                    with Aviation Partners Boeing winglets                 service information, for airplanes in
                                           fastener holes of the lower wing, or                    installed. The NPRM proposed to                        Group 1, Configurations 2 and 3, and
                                           modifying the external doubler/tripler                  require a HFEC inspection for cracking                 Groups 2 and 3, should be the same as
                                           and doing repetitive post-modification                  of the lower outboard wing skin, and                   for airplanes in Group 1, Configuration
                                           inspections. We are issuing this AD to                  repair or modification if necessary. The               1, on which the Part 2 repair has been
                                           address the unsafe condition on these                   NPRM also proposed to require one of                   done. The commenters asked that the
                                           products.                                               three follow-on actions: Repeating the                 compliance time for the Part 3 HFEC
                                                                                                   HFEC inspections, modifying certain                    inspection be corrected to the following:
                                           DATES:   This AD is effective July 10,                  internal stringers and oversizing and                  ‘‘Within 6,000 flight cycles after doing
                                           2018.                                                   plugging the existing fastener holes of                the Part 2 repair, or within 18,000 flight
                                              The Director of the Federal Register                 the lower wing, or modifying the                       hours since doing the Part 2 repair,
                                           approved the incorporation by reference                 external doubler/tripler and doing                     whichever occurs first.’’
                                           of certain publications listed in this AD               repetitive post-modification inspections.                 We agree with the commenters’
                                           as of July 10, 2018.                                       We issued an SNPRM to amend 14                      request for the reasons provided. We
                                           ADDRESSES: For service information                      CFR part 39 by adding an AD that                       have added paragraph (j)(3) of this AD
                                           identified in this final rule, contact                  would apply to certain The Boeing                      to include this compliance-time
                                           Aviation Partners Boeing, 2811 S. 102nd                 Company Model 767–300 and –300F                        exception.
                                           Street, Suite 200, Seattle, WA 98168;                   series airplanes. The SNPRM published
                                           telephone 206–762–1171;                                 in the Federal Register on November 27,                Request To Remove a Certain
                                           internet https://                                       2017 (82 FR 55958). The SNPRM                          Terminating Action
                                           www.aviationpartnersboeing.com. You                     proposed adding new HFEC inspections                      Boeing asked that we remove the
                                           may view this service information at the                for cracking of an expanded area of the                terminating action sentence at the end
amozie on DSK3GDR082PROD with RULES




                                           FAA, Transport Standards Branch, 2200                   lower outboard wing skin for certain                   of paragraph (g)(2) of the proposed AD
                                           South 216th St., Des Moines, WA. For                    airplanes.                                             (in the SNPRM). Paragraph (g)(2) of the
                                           information on the availability of this                    We are issuing this AD to address                   proposed AD (in the SNPRM) applies to
                                           material at the FAA, call 206–231–3195.                 fatigue cracking in the lower outboard                 Group 3 airplanes with external
                                           It is also available on the internet at                 wing skin, which could result in failure               doublers, and if a crack is found it
                                           http://www.regulations.gov by searching                 and subsequent separation of the wing                  requires a repair using a method


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                                           25886               Federal Register / Vol. 83, No. 108 / Tuesday, June 5, 2018 / Rules and Regulations

                                           approved by the FAA. That paragraph                     cycle threshold has been reached, and                  Service Bulletin AP767–57–014,
                                           also specifies that ‘‘[a]n approved repair              on which the Part 8 or Part 11 repair                  Revision 1, dated April 12, 2017,
                                           terminates the repetitive inspections                   was accomplished over 18 months ago.                   provides a compliance information table
                                           required by paragraph (g)(2) of this AD.’’              Delta stated that the compliance table                 only for Group 3 airplanes; there are no
                                           Boeing stated that any repair for cracks                on pages (i) and (ii) of Aviation Partners             tables for Groups 1 and 2 airplanes.
                                           found will require follow-on repetitive                 Boeing Service Bulletin AP767–57–010,                     We do not agree with the commenter’s
                                           inspections, which would be approved                    Revision 11, dated April 3, 2017, should               request. The compliance information
                                           as part of the AMOC repair approval                     be added to paragraph 1.E.,                            table on page i of Aviation Partners
                                           process.                                                ‘‘Compliance’’ and included in the AD.                 Boeing Service Bulletin AP767–57–014,
                                             We agree that the repairs for Group 3                    UAL stated that paragraph (g) of the                Revision 1, dated April 12, 2017,
                                           airplanes will have an approved follow-                 proposed AD (in the SNPRM) would                       provides only a description of
                                           on inspection program, but the repairs                  require the repetitive post-repair                     additional work, if any, necessary based
                                           may apply to the cracked areas only. We                 inspections specified in Parts 9 and 13                on work accomplished using the
                                           do not agree with removing the                          of Aviation Partners Boeing Service                    previous revision. These tables are
                                           terminating action provision because                    Bulletin AP767–57–010, Revision 11,                    reference information only, and do not
                                           other areas may require the repetitive                  dated April 3, 2017, in airplane total                 reflect all the actions required by the
                                           inspections specified in paragraph (g)(2)               times or within 18 months after                        AD. The necessary compliance tables
                                           of this AD, for which approved                          accomplishment of Part 8 and 11                        are provided in paragraph 1.E.,
                                           terminating action would be                             repairs, respectively. UAL is concerned                ‘‘Compliance’’ of Aviation Partners
                                           appropriate. We have revised that                       that older airplanes on which the repair               Boeing Service Bulletin AP767–57–014,
                                           sentence as follows: ‘‘An approved                      was done more than 18 months ago                       Revision 1, dated April 12, 2017.
                                           repair terminates the repetitive                        could be out of compliance on the                      Therefore, we have not changed this AD
                                           inspections required by paragraph (g)(2)                effective date of the AD. UAL noted that               in this regard.
                                           of this AD for the repaired area only.’’                the 18-month grace period covers the
                                                                                                                                                          Request To Clarify Group 4 Airplanes
                                                                                                   initial inspection, but does not cover
                                           Request To Add Grace Period for Post-                                                                          Not Affected
                                                                                                   post-repair inspections. UAL suggested
                                           Repair (Modification) Inspections                                                                                 UAL asked that we include a
                                                                                                   that we provide similar relief for
                                              American Airlines (AAL), APB, UAL,                   airplanes on which the threshold has                   clarification in the proposed AD (in the
                                           and Delta Airlines (Delta) asked that we                been exceeded.                                         SNPRM) that Group 4 airplanes are not
                                           add a grace period for the proposed                        We do not agree with the commenters’                affected. UAL stated that Group 4
                                           post-repair (modification) inspections.                 requests to add a grace period. The                    airplanes are identified in the effectivity
                                              AAL stated that Table 4 of paragraph                 current revisions of the referenced                    table in paragraph 1.A. of Aviation
                                           1.E., ‘‘Compliance,’’ of Aviation Partners              service information provide a                          Partners Boeing Service Bulletin
                                           Boeing Service Bulletin AP767–57–010,                   compliance time of 18 months for the                   AP767–57–010, Revision 11, dated
                                           Revision 11, dated April 3, 2017,                       initial inspection for all airplanes. The              April 3, 2017. UAL noted that an
                                           includes numerous inspections that are                  compliance times for certain conditional               equivalent change to the service
                                           due within a specified number of flight                 inspections are in terms of airplane                   information was incorporated during
                                           hours or flight cycles after previous                   threshold or time since accomplishment                 winglet installation with no additional
                                           repair or modification of the airplane.                 of the specified repair or modification.               work being necessary. UAL asked that
                                           AAL added that since it has completed                   Those previously installed repairs or                  we add paragraph (g)(3) to the AD to
                                           many repairs and modifications using                    modifications may have been done                       clarify that Group 4 airplanes are not
                                           previous revisions of the referenced                    using a version of Aviation Partners                   affected by the requirements in the AD.
                                           service information, there will be                      Boeing Service Bulletin AP767–57–010                      We agree with the commenter for the
                                           airplanes out of compliance with the AD                 before Revision 11 or alternative                      reasons provided. Aviation Partners
                                           requirements on the effective date                      method, and may involve deviations,                    Boeing Service Bulletin AP767–57–010,
                                           because there is no grace period based                  additional repair activity, and previous               Revision 11, dated April 3, 2017,
                                           on the AD due date.                                     repairs. Under the provisions of                       specifies that an equivalent change has
                                              APB and Delta stated that paragraph                  paragraph (k) of this AD, we will                      been incorporated in APB winglet
                                           (g) of the proposed AD (in the SNPRM)                   consider requests for approval of                      retrofit kits for Group 4 airplanes, and
                                           specifies compliance times specified in                 AMOCs to extend the compliance time                    that no more work is necessary on those
                                           paragraph 1.E., ‘‘Compliance,’’ of                      if sufficient data are submitted to                    airplanes. We have included a
                                           Aviation Partners Boeing Service                        substantiate that it would provide an                  clarification in paragraph (g)(3) of this
                                           Bulletin AP767–57–010, Revision 11,                     acceptable level of safety. We have                    AD that specifies that Group 4 airplanes
                                           dated April 3, 2017, for initial post-                  determined that each situation must be                 are not affected by the actions required
                                           repair inspections. APB added that the                  handled separately in the AMOC                         by paragraph (g) of this AD.
                                           referenced service information added a                  evaluation. We have not changed this
                                           flight-hour threshold of 90,000 total                                                                          Request To Remove an Airplane Having
                                                                                                   AD in this regard.
                                           flight cycles to the existing flight-cycle                                                                     a Certain Line Number
                                           threshold of 30,000 total flight cycles for             Request To Add Compliance Tables to                      FedEx asked that we remove the
                                           the initial compliance time. APB noted                  Certain Service Information                            airplane having line number 1027 from
                                           that the grace period published in the                    Delta asked that a compliance table be               the applicability in the proposed AD (in
                                           referenced service information for                      added to Aviation Partners Boeing                      the SNPRM), or allow Aviation Partners
                                           airplanes on which the flight-hour or                   Service Bulletin AP767–57–014,                         Boeing Service Bulletin AP767–57–012,
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                                           flight-cycle threshold has been reached                 Revision 1, dated April 12, 2017, for                  dated September 2015, as an AMOC.
                                           is set to 18 months after                               airplanes on which the actions specified               FedEx stated that it will be modifying
                                           accomplishment of the repair. APB                       in Aviation Partners Boeing Service                    that airplane by removing the winglets
                                           stated that this creates a drop-dead                    Bulletin AP767–57–010 have been                        and installing Boeing wing tips in
                                           inspection situation for airplanes on                   previously accomplished. Delta noted                   accordance with Aviation Partners
                                           which either the flight-hour or flight-                 that page i of Aviation Partners Boeing                Boeing Service Bulletin AP767–57–012,


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                                                               Federal Register / Vol. 83, No. 108 / Tuesday, June 5, 2018 / Rules and Regulations                                          25887

                                           dated September 2015. FedEx                             ODAs prior to the FAA approval of the                  for repairs approved by a Boeing 8100–
                                           anticipated that the modification will be               APB revised fatigue analysis issued on                 9 or previously accomplished using
                                           completed prior to the effective date of                June 15, 2017, and the release of                      Revisions 1, 2, 4, 6, 7, 8, and 9 of
                                           the AD. FedEx added that the unsafe                     Aviation Partners Boeing Service                       Aviation Partners Boeing Service
                                           condition will be addressed when the                    Bulletins AP767–57–010, Revision 11,                   Bulletin AP767–57–010. Delta added
                                           winglets are removed.                                   AP767–57–013, Revision 1, and AP767–                   that AMOCs will have to be obtained for
                                              We do not agree with the commenter’s                 57–014, Revision 1, do not qualify for                 each approved 8100–9 if no credit is
                                           request. There are many factors that led                AMOC credit to the AD after it is                      provided.
                                           to the cracking of the lower wing skin,                 released. ANA added that the proposed                    We agree to clarify the language in
                                           and the additional loading of the                       AD (in the SNPRM) would provide                        paragraph (i) of this AD to include
                                           winglet is only one of those factors.                   AMOC credit for repair deviations                      certain language provided by the
                                           Other contributory factors are design                   approved by Boeing ODAs with 8100–                     commenters’ for the reasons provided.
                                           details with the added internal wing                    9 forms dated after June 15, 2017,                     We have clarified the language in
                                           structure, which resulted in shortening                 because the Boeing ODAs would be                       paragraph (i) of this AD by adding that
                                           the fatigue life of the blended winglet                 using the APB revised fatigue analysis.                the ODA repairs approved after June 15,
                                           installation. We have not changed this                     AAL stated that paragraph (i) of the                2017, and before the effective date of
                                           AD in this regard.                                      proposed AD (in the SNPRM) specifies                   this AD, will have post-installation
                                                                                                   that repairs accomplished before June                  inspection requirements in lieu of the
                                           Request Approval for Alternative Open
                                                                                                   15, 2017, and before the AD effective                  post-inspection instructions specified in
                                           Hole HFEC Inspection
                                                                                                   date approved by a Boeing ODA can be                   Aviation Partners Boeing Service
                                              UAL asked that provisions be added                   considered approved repairs in                         Bulletin AP767–57–010, Revision 11,
                                           to paragraph (g) of the proposed AD (in                 accordance with paragraphs (g) and (h)                 dated April 3, 2017; and Aviation
                                           the SNPRM) to allow an alternative                      of the proposed AD (in the SNPRM).                     Partners Boeing Service Bulletin
                                           open-hole HFEC inspection procedure                     AAL added that Boeing has indicated                    AP767–57–014, Revision 1, dated April
                                           to inspect for cracking at the five                     through Multi-Operator Message MOM–                    12, 2017.
                                           inboard fastener locations. UAL stated                  MOM–17–0480–01B that repairs
                                           that an open-hole HFEC inspection with                  approved prior to June 15, 2017, can be                Request To Correct Error in Service
                                           the fasteners removed, in accordance                    re-evaluated and approved on a new                     Information
                                           with nondestructive test (NDT) Part 6,                  8100–9 form. AAL noted that the                           APB and UAL asked that we correct
                                           Chapter 51–00–16, using the same notch                  language in paragraph (i) should be                    an error specified in Part 13 of Aviation
                                           sensitivity provides an equivalent crack                clarified to indicate that repairs                     Partners Boeing Service Bulletin
                                           detection method. UAL added that APB                    accomplished prior to June 15, 2017, are               AP767–57–010, Revision 11, dated
                                           has concurred with the inspection. UAL                  also acceptable, as long as they have an               April 3, 2017.
                                           concluded that it has been performing                   8100–9 approval from a Boeing ODA                         APB and UAL stated that paragraphs
                                           the optional preventive modification,                   dated after June 15, 2017.                             (g)(1)(i)(D)(2), (g)(1)(ii)(B)(2), and
                                           which trims out the skin containing the                    APB requested that we clarify                       (g)(1)(iii)(B)(2) of the proposed AD (in
                                           five fastener holes, and allows for the                 paragraph (i) of the proposed AD (in the               the SNPRM) would require the post-
                                           open-hole HFEC to be performed easily                   SNPRM) to state that accomplishment of                 repair HFEC inspection in accordance
                                           because the fasteners in the doubler are                previous revisions of Aviation Partners                with Part 13 of the referenced service
                                           removed.                                                Boeing Service Bulletins AP767–57–010                  information. UAL stated that Part 13,
                                              We do not agree with the commenter’s                 should be acceptable for credit for                    Step 1.d., specifies repeating the Part 9
                                           request. Although UAL developed an                      previously accomplished repairs and                    HFEC inspection; however, it should
                                           inspection method that works better for                 modifications of the lower outboard                    specify repeating the Part 13 HFEC
                                           its situation, the HFEC inspection                      wing skin. APB stated that after the                   inspection because Part 9 applies to
                                           specified in the referenced service                     effective date of the AD, operators that               airplanes without the stringer
                                           information is required by this AD to                   did not seek relief for previously                     replacement. UAL noted that the
                                           address all situations. However, under                  completed actions would need to                        paragraphs in the proposed AD (in the
                                           the provisions of paragraph (k) of this                 request approval of AMOCs.                             SNPRM) correctly specify repeating the
                                           AD, we will consider requests for                          Delta stated that paragraph (i) of the              Part 13 HFEC inspection. UAL added
                                           approval of AMOCs if sufficient data are                proposed AD (in the SNPRM) provides                    that the steps in the referenced service
                                           submitted to substantiate that the open-                repair approval for repairs of the lower               information are listed as RC (required
                                           hole HFEC inspection procedure                          outboard wing skin done after June 15,                 for compliance), and must be done to
                                           provides an acceptable level of safety.                 2017, and before the effective date of the             comply with the AD.
                                           We have not changed this AD in this                     AD, that are approved by the Boeing                       We agree that the error exists in the
                                           regard.                                                 ODA authorized by the Manager, Seattle                 service information. We have added an
                                                                                                   ACO Branch, are approved for the                       exception in paragraph (j)(4) of this AD
                                           Request To Clarify Credit for Previously                applicable repairs required by                         that specifies repeating the Part 13
                                           Accomplished Repairs Approved by an                     paragraphs (g) and (h) of the AD. Delta                HFEC inspection instead of the Part 9
                                           Organization Designation                                added that prior to issuance of the                    inspection.
                                           Authorization (ODA)                                     referenced service information, both
                                             All Nippon Airways (ANA), AAL,                        inspection and repair instructions for                 Request To Provide Credit for Previous
                                           APB, and Delta asked that we clarify                    stringers L–9.5 and L–6.5 were                         Service Information
                                           credit in paragraph (i) of the proposed                 contained in Revisions 1, 2, 4, 6, 7, 8,                 AAL, UAL, and United Parcel Service
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                                           AD (in the SNPRM), for previously                       and 9 of Aviation Partners Boeing                      (UPS) asked that we provide credit for
                                           accomplished repairs approved by a                      Service Bulletin AP767–57–010. Delta                   doing the modification required by
                                           Boeing ODA prior to June 15, 2017.                      added that it has performed many                       paragraph (i) of the proposed AD (in the
                                             ANA stated that during discussions                    inspections and repairs for stringers L–               SNPRM) using previous revisions of the
                                           with the FAA, it was informed that                      9.5 and L–6.5 with those revisions.                    referenced service information. UAL
                                           repair deviations approved by Boeing                    Delta suggested that credit be provided                and UPS noted that paragraph (i) of the


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                                           25888                    Federal Register / Vol. 83, No. 108 / Tuesday, June 5, 2018 / Rules and Regulations

                                           proposed AD (in the NPRM), which                                    previously and minor editorial changes.                repair (modification) of the stringer with
                                           provided credit for previous actions                                We have determined that these minor                    external doubler/tripler; repetitive post-
                                           using previous revisions of the                                     changes:                                               repair inspections for cracking, and
                                           referenced service information, was                                   • Are consistent with the intent that                repair.
                                           deleted in the SNPRM.                                               was proposed in the SNPRM for                            We also reviewed APB Service
                                             We do not agree with the commenters’                              addressing the unsafe condition; and                   Bulletin AP767–57–014, Revision 1,
                                           requests. No credit is given for                                      • Do not add any additional burden                   dated April 12, 2017. The service
                                           previously installed repairs or                                     upon the public than was already                       information describes procedures for an
                                                                                                               proposed in the SNPRM.                                 HFEC inspection for cracking of the
                                           modifications due to each situation
                                                                                                                 We also determined that these
                                           being unique; therefore, a re-evaluation                                                                                   lower outboard wing skin at stringer L–
                                                                                                               changes will not increase the economic
                                           will have to be done and may involve                                                                                       6.5 and on-condition actions that
                                                                                                               burden on any operator or increase the
                                           additional work for certain airplanes.                                                                                     include repetitive HFEC inspections,
                                                                                                               scope of this final rule.
                                           Under the provisions of paragraph (k) of                                                                                   repair (modification) of the stringer with
                                           this AD, we will consider requests for                              Related Service Information Under 1                    new stringer, repetitive post-repair
                                           approval of AMOCs if sufficient data are                            CFR Part 51                                            HFEC inspections for cracking, and
                                           submitted to substantiate that work                                    We reviewed APB Service Bulletin                    repair.
                                           done using previous revisions of the                                AP767–57–010, Revision 11, dated                         This service information is reasonably
                                           service information provides an                                     April 3, 2017. The service information                 available because the interested parties
                                           acceptable level of safety. We have not                             describes procedures for an HFEC                       have access to it through their normal
                                           changed this AD in this regard.                                     inspection for cracking of the external                course of business or by the means
                                           Conclusion                                                          surface of the lower outboard wing skin                identified in the ADDRESSES section.
                                                                                                               at stringer L–9.5, and on-condition                    Costs of Compliance
                                              We reviewed the relevant data,                                   actions that include repetitive HFEC
                                           considered the comments received, and                               inspections, modification by oversizing                  We estimate that this AD affects 140
                                           determined that air safety and the                                  and plugging the existing fastener holes               airplanes of U.S. registry. We estimate
                                           public interest require adopting this                               of the wing skin, repair (modification) of             the following costs to comply with this
                                           final rule with the changes described                               the stringer with new stringer, and                    AD:

                                                                                                              ESTIMATED COSTS—REQUIRED ACTIONS
                                                                                                                                                                                       Cost per          Cost on U.S.
                                                                      Action                                                      Labor cost                         Parts cost        product            operators

                                           HFEC Inspections ...........................................      6 work-hours × $85 per hour = $510 .............                     $0          $510            $71,400



                                             We estimate the following costs to do                             would be required based on the results                 determining the number of aircraft that
                                           any necessary on-condition actions that                             of the inspection. We have no way of                   might need these on-condition actions.

                                                                                                          ESTIMATED COSTS—ON-CONDITION ACTIONS
                                                                                                                                                                                                           Cost per
                                                                            Action                                                              Labor cost                             Parts cost          product

                                           Post-repair Inspections .................................................     6 work-hours × $85 per hour = $510 per inspection                          $0           $510
                                                                                                                           cycle.
                                           Repair/Modification .......................................................   262 work-hours × $85 per hour = $22,270 ..................                 0          22,270



                                             We have received no definitive data                               promoting safe flight of civil aircraft in             applicable to transport category
                                           that would enable us to provide cost                                air commerce by prescribing regulations                airplanes and associated appliances to
                                           estimates for on-condition repairs for                              for practices, methods, and procedures                 the Director of the System Oversight
                                           the post-repair inspections specified in                            the Administrator finds necessary for                  Division.
                                           this AD.                                                            safety in air commerce. This regulation
                                                                                                               is within the scope of that authority                  Regulatory Findings
                                           Authority for This Rulemaking
                                                                                                               because it addresses an unsafe condition                 This AD will not have federalism
                                              Title 49 of the United States Code                               that is likely to exist or develop on                  implications under Executive Order
                                           specifies the FAA’s authority to issue                              products identified in this rulemaking                 13132. This AD will not have a
                                           rules on aviation safety. Subtitle I,                               action.                                                substantial direct effect on the States, on
                                           section 106, describes the authority of                                This AD is issued in accordance with                the relationship between the national
                                           the FAA Administrator. Subtitle VII:                                authority delegated by the Executive                   government and the States, or on the
                                           Aviation Programs, describes in more                                Director, Aircraft Certification Service,              distribution of power and
                                           detail the scope of the Agency’s                                    as authorized by FAA Order 8000.51C.
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                                                                                                                                                                      responsibilities among the various
                                           authority.                                                          In accordance with that order, issuance                levels of government.
                                              We are issuing this rulemaking under                             of ADs is normally a function of the
                                           the authority described in Subtitle VII,                            Compliance and Airworthiness                             For the reasons discussed above, I
                                           Part A, Subpart III, Section 44701:                                 Division, but during this transition                   certify that this AD:
                                           ‘‘General requirements.’’ Under that                                period, the Executive Director has                       (1) Is not a ‘‘significant regulatory
                                           section, Congress charges the FAA with                              delegated the authority to issue ADs                   action’’ under Executive Order 12866,


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                                                               Federal Register / Vol. 83, No. 108 / Tuesday, June 5, 2018 / Rules and Regulations                                                25889

                                             (2) Is not a ‘‘significant rule’’ under               (f) Compliance                                            (1) Before further flight, repair (modify) in
                                           DOT Regulatory Policies and Procedures                     Comply with this AD within the                      accordance with Part 8 of the
                                           (44 FR 11034, February 26, 1979),                       compliance times specified, unless already             Accomplishment Instructions of Aviation
                                                                                                   done.                                                  Partners Boeing Service Bulletin AP767–57–
                                             (3) Will not affect intrastate aviation                                                                      010, Revision 11, dated April 3, 2017.
                                           in Alaska, and                                          (g) Repetitive Stringer L–9.5 Inspections,                (2) At the applicable time specified in
                                             (4) Will not have a significant                       Modification, Repair (Modification),                   paragraph 1.E., ‘‘Compliance,’’ of Aviation
                                           economic impact, positive or negative,                  Repetitive Post-Repair Inspections, and                Partners Boeing Service Bulletin AP767–57–
                                           on a substantial number of small entities               Repair                                                 010, Revision 11, dated April 3, 2017, do a
                                           under the criteria of the Regulatory                       (1) For Group 1 and Group 2 airplanes               post-repair HFEC inspection for cracking, in
                                           Flexibility Act.                                        identified in Aviation Partners Boeing                 accordance with Part 9 of the
                                                                                                   Service Bulletin AP767–57–010, Revision 11,            Accomplishment Instructions of Aviation
                                           List of Subjects in 14 CFR Part 39                      dated April 3, 2017: At the applicable time            Partners Boeing Service Bulletin AP767–57–
                                                                                                   specified in paragraph 1.E., ‘‘Compliance,’’ of        010, Revision 11, dated April 3, 2017; and
                                             Air transportation, Aircraft, Aviation                Aviation Partners Boeing Service Bulletin              repeat the inspection thereafter at the
                                           safety, Incorporation by reference,                     AP767–57–010, Revision 11, dated April 3,              applicable times specified in paragraph 1.E.,
                                           Safety.                                                 2017, except as required by paragraph (j)(1)           ‘‘Compliance,’’ of Aviation Partners Boeing
                                                                                                   of this AD: Do a high frequency eddy current           Service Bulletin AP767–57–010, Revision 11,
                                           Adoption of the Amendment                                                                                      dated April 3, 2017.
                                                                                                   (HFEC) inspection for cracking of the lower
                                             Accordingly, under the authority                      outboard wing skin at stringer L–9.5, in                  (3) If any crack is found during any
                                                                                                   accordance with Part 1 of the                          inspection required by paragraph
                                           delegated to me by the Administrator,                                                                          (g)(1)(i)(C)(2) of this AD, repair before further
                                           the FAA amends 14 CFR part 39 as                        Accomplishment Instructions of Aviation
                                                                                                   Partners Boeing Service Bulletin AP767–57–             flight using a method approved in
                                           follows:                                                                                                       accordance with the procedures specified in
                                                                                                   010, Revision 11, dated April 3, 2017.
                                                                                                      (i) For airplanes on which ‘‘Condition 1’’          paragraph (k) of this AD.
                                           PART 39—AIRWORTHINESS                                   is found, as defined in the Accomplishment                (D) Do the actions required by paragraphs
                                           DIRECTIVES                                              Instructions of Aviation Partners Boeing               (g)(1)(i)(D)(1) and (g)(1)(i)(D)(2) of this AD,
                                                                                                   Service Bulletin AP767–57–010, Revision 11,            and do all applicable actions required by
                                           ■ 1. The authority citation for part 39                 dated April 3, 2017, during any inspection             paragraph (g)(1)(i)(D)(3) of this AD.
                                           continues to read as follows:                           required by paragraph (g)(1) or (g)(1)(i)(A) of           (1) Before further flight, repair (modify) in
                                                                                                   this AD: Do the applicable actions required            accordance with Part 11 of the
                                               Authority: 49 U.S.C. 106(g), 40113, 44701.
                                                                                                   by paragraph (g)(1)(i)(A), (g)(1)(i)(B),               Accomplishment Instructions of Aviation
                                           § 39.13   [Amended]                                     (g)(1)(i)(C), or (g)(1)(i)(D) of this AD.              Partners Boeing Service Bulletin AP767–57–
                                                                                                      (A) Repeat the inspection specified in              010, Revision 11, dated April 3, 2017.
                                           ■ 2. The FAA amends § 39.13 by adding                   paragraph (g)(1) of this AD thereafter at the             (2) At the applicable time specified in
                                           the following new airworthiness                         applicable times specified in paragraph 1.E.,          paragraph 1.E., ‘‘Compliance,’’ of Aviation
                                           directive (AD):                                         ‘‘Compliance,’’ of Aviation Partners Boeing            Partners Boeing Service Bulletin AP767–57–
                                                                                                   Service Bulletin AP767–57–010, Revision 11,            010, Revision 11, dated April 3, 2017, do a
                                           2018–11–14 The Boeing Company:                                                                                 post-repair HFEC inspection for cracking, in
                                                                                                   dated April 3, 2017.
                                               Amendment 39–19302; Docket No.                                                                             accordance with Part 13 of the
                                                                                                      (B) Do the applicable actions required by
                                               FAA–2015–1421; Product Identifier                                                                          Accomplishment Instructions of Aviation
                                                                                                   paragraphs (g)(1)(i)(B)(1), (g)(1)(i)(B)(2), and
                                               2014–NM–177–AD.                                                                                            Partners Boeing Service Bulletin AP767–57–
                                                                                                   (g)(1)(i)(B)(3) of this AD.
                                           (a) Effective Date                                         (1) Before further flight, do actions               010, Revision 11, dated April 3, 2017; and
                                                                                                   (modifications and repair (modification)) in           repeat the inspection thereafter at the
                                             This AD is effective July 10, 2018.
                                                                                                   accordance with Part 2, Part 3, Part 4, and            applicable times specified in paragraph 1.E.,
                                           (b) Affected ADs                                        Part 5, as applicable, of the Accomplishment           ‘‘Compliance,’’ of Aviation Partners Boeing
                                             None.                                                 Instructions of Aviation Partners Boeing               Service Bulletin AP767–57–010, Revision 11,
                                                                                                   Service Bulletin AP767–57–010, Revision 11,            dated April 3, 2017; except as required by
                                           (c) Applicability                                       dated April 3, 2017.                                   paragraph (j)(4) of this AD.
                                              This AD applies to The Boeing Company                   (2) For airplanes on which the repair                  (3) If any crack is found during any
                                           Model 767–300 and –300F series airplanes,               (modification) specified in Part 5 of Aviation         inspection required by paragraph
                                           certificated in any category, with Aviation             Partners Boeing Service Bulletin AP767–57–             (g)(1)(i)(D)(2) of this AD, repair before further
                                           Partners Boeing winglets installed; as                  010 was done: At the applicable time                   flight using a method approved in
                                           identified in Aviation Partners Boeing                  specified in paragraph 1.E., ‘‘Compliance,’’ of        accordance with the procedures specified in
                                           Service Bulletin AP767–57–010, Revision 11,             Aviation Partners Boeing Service Bulletin              paragraph (k) of this AD.
                                           dated April 3, 2017; and Aviation Partners              AP767–57–010, Revision 11, dated April 3,                 (ii) For airplanes on which ‘‘Condition 2’’
                                           Boeing Service Bulletin AP767–57–014,                   2017, do a post-repair HFEC inspection for             is found, as defined in the Accomplishment
                                           Revision 1, dated April 12, 2017.                       cracking, in accordance with Part 12 of the            Instructions of Aviation Partners Boeing
                                                                                                   Accomplishment Instructions of Aviation                Service Bulletin AP767–57–010, Revision 11,
                                           (d) Subject                                             Partners Boeing Service Bulletin AP767–57–             dated April 3, 2017, during any inspection
                                             Air Transport Association (ATA) of                    010, Revision 11, dated April 3, 2017; and             required by paragraph (g)(1) or (g)(1)(i)(A) of
                                           America Code 57, Wings.                                 repeat the inspection thereafter at the                this AD: Do the actions required by
                                                                                                   applicable times specified in paragraph 1.E.,          paragraph (g)(1)(ii)(A) or (g)(1)(ii)(B) of this
                                           (e) Unsafe Condition                                    ‘‘Compliance,’’ of Aviation Partners Boeing            AD.
                                              This AD was prompted by reports of                   Service Bulletin AP767–57–010, Revision 11,               (A) Do the actions required by paragraphs
                                           fatigue cracking in the lower outboard wing             dated April 3, 2017.                                   (g)(1)(ii)(A)(1) and (g)(1)(ii)(A)(2) of this AD,
                                           skin at the inboard fastener of stringer L–9.5,            (3) If any crack is found during any                and do all applicable actions required by
                                           and the lower outboard wing skin of stringer            inspection required by paragraph                       paragraph (g)(1)(ii)(A)(3) of this AD.
                                           L–6.5, on airplanes with winglets installed             (g)(1)(i)(B)(2) of this AD, repair before further         (1) Before further flight, repair (modify) in
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                                           per Supplemental Type Certificate                       flight using a method approved in                      accordance with Part 8 of the
                                           ST01920SE. We are issuing this AD to                    accordance with the procedures specified in            Accomplishment Instructions of Aviation
                                           prevent fatigue cracking in the lower                   paragraph (k) of this AD.                              Partners Boeing Service Bulletin AP767–57–
                                           outboard wing skin, which could result in                  (C) Do the actions required by paragraphs           010, Revision 11, dated April 3, 2017.
                                           failure and subsequent separation of the wing           (g)(1)(i)(C)(1) and (g)(1)(i)(C)(2) of this AD,           (2) At the applicable time specified in
                                           and winglet and consequent reduced                      and do all applicable actions required by              paragraph 1.E., ‘‘Compliance,’’ of Aviation
                                           controllability of the airplane.                        paragraph (g)(1)(i)(C)(3) of this AD.                  Partners Boeing Service Bulletin AP767–57–



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                                           25890               Federal Register / Vol. 83, No. 108 / Tuesday, June 5, 2018 / Rules and Regulations

                                           010, Revision 11, dated April 3, 2017, do a             Service Bulletin AP767–57–010, Revision 11,               (3) Group 4 airplanes identified in Aviation
                                           post-repair HFEC inspection for cracking, in            dated April 3, 2017.                                   Partners Boeing Service Bulletin AP767–57–
                                           accordance with Part 9 of the                              (3) If any crack is found during any                010, Revision 11, dated April 3, 2017, are not
                                           Accomplishment Instructions of Aviation                 inspection required by paragraph                       affected by the actions required by paragraph
                                           Partners Boeing Service Bulletin AP767–57–              (g)(1)(iii)(A)(2) of this AD, repair before            (g) of this AD.
                                           010, Revision 11, dated April 3, 2017; and              further flight using a method approved in
                                                                                                   accordance with the procedures specified in            (h) Repetitive Stringer L–6.5 Inspections,
                                           repeat the inspection thereafter at the
                                           applicable times specified in paragraph 1.E.,           paragraph (k) of this AD.                              Repair (Modification), Repetitive Post-
                                           ‘‘Compliance,’’ of Aviation Partners Boeing                (B) Do the actions required by paragraphs           Repair Inspections, and Repair
                                           Service Bulletin AP767–57–010, Revision 11,             (g)(1)(iii)(B)(1) and (g)(1)(iii)(B)(2) of this AD,       (1) For airplanes identified in Boeing
                                           dated April 3, 2017.                                    and do all applicable actions required by              Service Bulletin AP767–57–014, Revision 1,
                                              (3) If any crack is found during any                 paragraph (g)(1)(iii)(B)(3) of this AD.                dated April 12, 2017: At the applicable time
                                           inspection required by paragraph                           (1) Before further flight, repair (modify) in       specified in paragraph 1.E., ‘‘Compliance,’’ of
                                           (g)(1)(ii)(A)(2) of this AD, repair before              accordance with Part 11 of the                         Aviation Partners Boeing Service Bulletin
                                           further flight using a method approved in               Accomplishment Instructions of Aviation                AP767–57–014, Revision 1, dated April 12,
                                           accordance with the procedures specified in             Partners Boeing Service Bulletin AP767–57–             2017, except as required by paragraph (j)(2)
                                           paragraph (k) of this AD.                               010, Revision 11, dated April 3, 2017.                 of this AD: Do an HFEC inspection for
                                              (B) Do the actions required by paragraphs               (2) At the applicable time specified in             cracking of stringer L–6.5 of the lower
                                           (g)(1)(ii)(B)(1) and (g)(1)(ii)(B)(2) of this AD,       paragraph 1.E., ‘‘Compliance,’’ of Aviation            outboard wing skin, in accordance with Part
                                           and do all applicable actions required by               Partners Boeing Service Bulletin AP767–57–             1 of Aviation Partners Boeing Service
                                           paragraph (g)(1)(ii)(B)(3) of this AD.                  010, Revision 11, dated April 3, 2017, do a            Bulletin AP767–57–014, Revision 1, dated
                                              (1) Before further flight, repair (modify) in        post-repair HFEC inspection for cracking, in           April 12, 2017. If no cracking is found, repeat
                                           accordance with Part 11 of the                          accordance with Part 13 of the                         the inspection thereafter at the applicable
                                           Accomplishment Instructions of Aviation                 Accomplishment Instructions of Aviation                times specified in paragraph 1.E.,
                                           Partners Boeing Service Bulletin AP767–57–              Partners Boeing Service Bulletin AP767–57–             ‘‘Compliance,’’ of Aviation Partners Boeing
                                           010, Revision 11, dated April 3, 2017.                  010, Revision 11, dated April 3, 2017; and             Service Bulletin AP767–57–014, Revision 1,
                                              (2) At the applicable time specified in              repeat the inspection thereafter at the                dated April 12, 2017, except as provided by
                                           paragraph 1.E., ‘‘Compliance,’’ of Aviation             applicable times specified in paragraph 1.E.,          paragraph (h)(3) of this AD.
                                           Partners Boeing Service Bulletin AP767–57–              ‘‘Compliance,’’ of Aviation Partners Boeing               (2) If any crack is found during any
                                           010, Revision 11, dated April 3, 2017, do a             Service Bulletin AP767–57–010, Revision 11,            inspection required by paragraph (h)(1) of
                                           post-repair HFEC inspection for cracking, in            dated April 3, 2017; except as required by             this AD, do the actions required by
                                           accordance with Part 13 of the                          paragraph (j)(4) of this AD.                           paragraphs (h)(2)(i) and (h)(2)(ii) of this AD,
                                           Accomplishment Instructions of Aviation                    (3) If any crack is found during any                and do all applicable actions required by
                                           Partners Boeing Service Bulletin AP767–57–              inspection required by paragraph                       paragraph (h)(2)(iii) of this AD.
                                           010, Revision 11, dated April 3, 2017; and              (g)(1)(iii)(B)(2) of this AD, repair before               (i) Before further flight, repair (modify)
                                           repeat the inspection thereafter at the                 further flight using a method approved in              stringer L–6.5, in accordance with Part 2 of
                                           applicable times specified in paragraph 1.E.,           accordance with the procedures specified in            the Accomplishment Instructions of Aviation
                                           ‘‘Compliance,’’ of Aviation Partners Boeing             paragraph (k) of this AD.                              Partners Boeing Service Bulletin AP767–57–
                                           Service Bulletin AP767–57–010, Revision 11,                (iv) For airplanes on which ‘‘Condition 4’’         014, Revision 1, dated April 12, 2017.
                                           dated April 3, 2017; except as required by              is found, as defined in the Accomplishment                (ii) Except as required by paragraph (j)(3)
                                           paragraph (j)(4) of this AD.                            Instructions of Aviation Partners Boeing               of this AD: At the applicable time specified
                                              (3) If any crack is found during any                 Service Bulletin AP767–57–010, Revision 11,            in paragraph 1.E., ‘‘Compliance,’’ of Aviation
                                           inspection required by paragraph                        dated April 3, 2017, during any action                 Partners Boeing Service Bulletin AP767–57–
                                           (g)(1)(ii)(B)(2) of this AD, repair before              specified in paragraph (g)(1)(i)(C)(1),                014, Revision 1, dated April 12, 2017, except
                                           further flight using a method approved in               (g)(1)(i)(D)(1) (g)(1)(ii)(A)(1), (g)(1)(ii)(B)(1),    as required by paragraph (j)(2) of this AD, do
                                           accordance with the procedures specified in             (g)(1)(iii)(A)(1), and (g)(1)(iii)(B)(1) of this       an HFEC post-repair inspection for cracking,
                                           paragraph (k) of this AD.                               AD: Repair before further flight using a               in accordance with Part 3 of the
                                              (iii) For airplanes on which ‘‘Condition 3’’         method approved in accordance with the                 Accomplishment Instructions of Aviation
                                           is found, as defined in the Accomplishment              procedures specified in paragraph (k) of this          Partners Boeing Service Bulletin AP767–57–
                                           Instructions of Aviation Partners Boeing                AD.                                                    014, Revision 1, dated April 12, 2017, and
                                           Service Bulletin AP767–57–010, Revision 11,                (2) For Group 3 airplanes identified in             repeat the inspection thereafter at the
                                           dated April 3, 2017, during the actions                 Aviation Partners Boeing Service Bulletin              applicable times specified in paragraph 1.E.,
                                           specified in paragraph (g)(1)(i)(B)(1) of this          AP767–57–010, Revision 11, dated April 3,              ‘‘Compliance,’’ of Aviation Partners Boeing
                                           AD: Do the actions required by paragraph                2017: At the applicable time specified in              Service Bulletin AP767–57–014, Revision 1,
                                           (g)(1)(iii)(A) or (g)(1)(iii)(B) of this AD.            paragraph 1.E., ‘‘Compliance,’’ of Aviation            dated April 12, 2017.
                                              (A) Do the actions required by paragraphs            Partners Boeing Service Bulletin AP767–57–                (iii) If any crack is found during any
                                           (g)(1)(iii)(A)(1) and (g)(1)(iii)(A)(2) of this AD,     010, Revision 11, dated April 3, 2017, or              inspection required by paragraph (h)(2)(ii) of
                                           and do all applicable actions required by               within 6 months after the effective date of            this AD, repair before further flight using a
                                           paragraph (g)(1)(iii)(A)(3) of this AD.                 this AD, whichever occurs later, do an HFEC            method approved in accordance with the
                                              (1) Before further flight, repair (modify) in        inspection for cracking of the lower outboard          procedures specified in paragraph (k) of this
                                           accordance with Part 8 of the                           wing skin at stringer L–9.5, in accordance             AD.
                                           Accomplishment Instructions of Aviation                 with Part 7 of the Accomplishment                         (3) As an option to the repetitive
                                           Partners Boeing Service Bulletin AP767–57–              Instructions of Aviation Partners Boeing               inspections required by paragraph (h)(1) of
                                           010, Revision 11, dated April 3, 2017.                  Service Bulletin AP767–57–010, Revision 11,            this AD, do the actions required by
                                              (2) At the applicable time specified in              dated April 3, 2017. Repeat the inspection             paragraphs (h)(3)(i) and (h)(3)(ii) of this AD,
                                           paragraph 1.E., ‘‘Compliance,’’ of Aviation             thereafter at the applicable time specified in         and do all applicable actions required by
                                           Partners Boeing Service Bulletin AP767–57–              paragraph 1.E., ‘‘Compliance,’’ of Aviation            paragraph (h)(3)(iii) of this AD.
                                           010, Revision 11, dated April 3, 2017, do a             Partners Boeing Service Bulletin AP767–57–                (i) Before further flight after accomplishing
                                           post-repair HFEC inspection for cracking, in            010, Revision 11, dated April 3, 2017. If any          the most recent inspection required by
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                                           accordance with Part 9 of the                           cracking is found during any inspection,               paragraph (h)(1) of this AD, repair (modify)
                                           Accomplishment Instructions of Aviation                 repair before further flight using a method            stringer L–6.5, in accordance with Part 2 of
                                           Partners Boeing Service Bulletin AP767–57–              approved in accordance with the procedures             the Accomplishment Instructions of Aviation
                                           010, Revision 11, dated April 3, 2017; and              specified in paragraph (k) of this AD. An              Partners Boeing Service Bulletin AP767–57–
                                           repeat the inspection thereafter at the                 approved repair terminates the repetitive              014, Revision 1, dated April 12, 2017.
                                           applicable times specified in paragraph 1.E.,           inspections required by paragraph (g)(2) of               (ii) Except as required by paragraph (j)(3)
                                           ‘‘Compliance,’’ of Aviation Partners Boeing             this AD for the repaired area only.                    of this AD: At the applicable time specified



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                                                               Federal Register / Vol. 83, No. 108 / Tuesday, June 5, 2018 / Rules and Regulations                                                  25891

                                           in paragraph 1.E., ‘‘Compliance,’’ of Aviation          AD requires repeating the post-repair HFEC                  (i) Aviation Partners Boeing Service
                                           Partners Boeing Service Bulletin AP767–57–              inspection in Part 13.                                   Bulletin AP767–57–010, Revision 11, dated
                                           014, Revision 1, dated April 12, 2017, except                                                                    April 3, 2017.
                                                                                                   (k) Alternative Methods of Compliance                       (ii) Aviation Partners Boeing Service
                                           as required by paragraph (j)(2) of this AD, do
                                                                                                   (AMOCs)                                                  Bulletin AP767–57–014, Revision 1, dated
                                           a post-repair HFEC inspection for cracking,
                                           in accordance with Part 3 of the                           (1) The Manager, Seattle ACO Branch,                  April 12, 2017.
                                           Accomplishment Instructions of Aviation                 FAA, has the authority to approve AMOCs                     (3) For service information identified in
                                           Partners Boeing Service Bulletin AP767–57–              for this AD, if requested using the procedures           this AD, contact Aviation Partners Boeing,
                                           014, Revision 1, dated April 12, 2017, and              found in 14 CFR 39.19. In accordance with                2811 S. 102nd Street, Suite 200, Seattle, WA
                                           repeat the inspection thereafter at the                 14 CFR 39.19, send your request to your                  98168; telephone 206–762–1171; internet
                                           applicable times specified in paragraph 1.E.,           principal inspector or local Flight Standards            https://www.aviationpartnersboeing.com.
                                           ‘‘Compliance,’’ of Aviation Partners Boeing             District Office, as appropriate. If sending                 (4) You may view this service information
                                           Service Bulletin AP767–57–014, Revision 1,              information directly to the manager of the               at the FAA, Transport Standards Branch,
                                           dated April 12, 2017.                                   certification office, send it to the attention of        2200 South 216th St., Des Moines, WA. For
                                              (iii) If any crack is found during any               the person identified in paragraph (l) of this           information on the availability of this
                                           inspection required by paragraph (h)(3)(ii) of          AD. Information may be emailed to: 9-ANM-                material at the FAA, call 206–231–3195.
                                           this AD, repair before further flight using a           Seattle-ACO-AMOC-Requests@faa.gov.                          (5) You may view this service information
                                           method approved in accordance with the                     (2) Before using any approved AMOC,                   that is incorporated by reference at the
                                           procedures specified in paragraph (k) of this           notify your appropriate principal inspector,             National Archives and Records
                                           AD.                                                     or lacking a principal inspector, the manager            Administration (NARA). For information on
                                                                                                   of the local flight standards district office/           the availability of this material at NARA, call
                                           (i) Repair Approval                                     certificate holding district office.                     202–741–6030, or go to: http://
                                              Repairs of the lower outboard wing skin                 (3) An AMOC that provides an acceptable               www.archives.gov/federal-register/cfr/ibr-
                                           that were approved after June 15, 2017, and             level of safety may be used for any repair,              locations.html.
                                           before the effective date of this AD, by the            modification, or alteration required by this
                                                                                                   AD if it is approved by the Boeing                         Issued in Des Moines, Washington, on May
                                           Boeing Commercial Airplanes Organization                                                                         21, 2018.
                                           Designation Authorization (ODA) that has                Commercial Airplanes ODA that has been
                                                                                                   authorized by the Manager, Seattle ACO                   James Cashdollar,
                                           been authorized by the Manager, Seattle ACO
                                           Branch, are approved for the applicable                 Branch, to make those findings. To be                    Acting Director, System Oversight Division,
                                           repairs required by paragraphs (g) and (h) of           approved, the repair method, modification                Aircraft Certification Service.
                                           this AD. The ODA repairs will have post-                deviation, or alteration deviation must meet             [FR Doc. 2018–11825 Filed 6–4–18; 8:45 am]
                                           installation inspection requirements in lieu            the certification basis of the airplane, and the
                                                                                                                                                            BILLING CODE 4910–13–P
                                           of the post-inspection instructions specified           approval must specifically refer to this AD.
                                           in Aviation Partners Boeing Service Bulletin               (4) Except as required by paragraphs
                                                                                                   (g)(1)(i)(B)(3), (g)(1)(i)(C)(3), (g)(1)(i)(D)(3),
                                           AP767–57–010, Revision 11, dated April 3,                                                                        DEPARTMENT OF TRANSPORTATION
                                                                                                   (g)(1)(ii)(A)(3), (g)(1)(ii)(B)(3), (g)(1)(iii)(A)(3),
                                           2017; and Aviation Partners Boeing Service
                                                                                                   (g)(1)(iii)(B)(3), (g)(1)(iv), (g)(2), (h)(2)(iii),
                                           Bulletin AP767–57–014, Revision 1, dated                                                                         Federal Aviation Administration
                                                                                                   and (h)(3)(iii) of this AD: For service
                                           April 12, 2017.
                                                                                                   information that contains steps that are
                                           (j) Exceptions to Service Information                   labeled as Required for Compliance (RC), the             14 CFR Part 39
                                           Specifications                                          provisions of paragraphs (k)(4)(i) and
                                                                                                   (k)(4)(ii) of this AD apply.                             [Docket No. FAA–2017–1099; Product
                                              (1) Where paragraph 1.E., ‘‘Compliance,’’ of                                                                  Identifier 2017–NM–093–AD; Amendment
                                           Aviation Partners Boeing Service Bulletin                  (i) The steps labeled as RC, including
                                                                                                   substeps under an RC step and any figures                39–19296; AD 2018–11–08]
                                           AP767–57–010, Revision 11, dated April 3,
                                                                                                   identified in an RC step, must be done to                RIN 2120–AA64
                                           2017, specifies a compliance time ‘‘after the
                                                                                                   comply with the AD. If a step or substep is
                                           issue date of Revision 11 of this service
                                                                                                   labeled ‘‘RC Exempt,’’ then the RC                       Airworthiness Directives; The Boeing
                                           bulletin,’’ this AD requires compliance
                                                                                                   requirement is removed from that step or                 Company Airplanes
                                           within the specified compliance time after
                                                                                                   substep. An AMOC is required for any
                                           the effective date of this AD.
                                              (2) Where paragraph 1.E., ‘‘Compliance,’’ of
                                                                                                   deviations to RC steps, including substeps               AGENCY:  Federal Aviation
                                                                                                   and identified figures.                                  Administration (FAA), DOT.
                                           Aviation Partners Boeing Service Bulletin
                                                                                                      (ii) Steps not labeled as RC may be                   ACTION: Final rule.
                                           AP767–57–014, Revision 1, dated April 12,
                                                                                                   deviated from using accepted methods in
                                           2017, specifies a compliance time ‘‘after the           accordance with the operator’s maintenance
                                           initial issue date of this service bulletin,’’ this                                                              SUMMARY:   We are adopting a new
                                                                                                   or inspection program without obtaining                  airworthiness directive (AD) for certain
                                           AD requires compliance within the specified             approval of an AMOC, provided the RC steps,
                                           compliance time after the effective date of             including substeps and identified figures, can
                                                                                                                                                            The Boeing Company Model 767–200
                                           this AD.                                                still be done as specified, and the airplane             and –300 series airplanes. This AD was
                                              (3) For Condition 1 and Condition 2                  can be put back in an airworthy condition.               prompted by a report of two cracks at
                                           airplanes: Where paragraph 1.E.,                                                                                 a certain frame inner chord. This AD
                                           ‘‘Compliance,’’ of Aviation Partners Boeing             (l) Related Information
                                                                                                                                                            requires a detailed inspection for any
                                           Service Bulletin AP767–57–014, Revision 1,                 For more information about this AD,
                                           dated April 12, 2017, specifies a compliance
                                                                                                                                                            material review board (MRB) filler
                                                                                                   contact Allen Rauschendorfer, Aerospace                  installed in the area from the frame web
                                           time for accomplishing the Part 3 HFEC                  Engineer, Airframe Section, FAA, Seattle
                                           inspection of 18 months ‘‘after the initial             ACO Branch, 2200 South 216th St., Des
                                                                                                                                                            to the stub-beam fitting at certain
                                           issue date of this service bulletin,’’ the              Moines, WA; phone and fax: 206–231–3528;                 stations to determine if the filler extends
                                           required compliance time is 6,000 flight                email: allen.rauschendorfer@faa.gov.                     above the frame-to-stub-beam joint, and
                                           cycles or 18,000 flight hours, whichever                                                                         applicable on-condition actions. We are
                                           occurs first, after doing the Part 2 repair.            (m) Material Incorporated by Reference
                                                                                                                                                            issuing this AD to address the unsafe
                                              (4) For airplanes on which a stringer L–9.5             (1) The Director of the Federal Register              condition on these products.
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                                           replacement was accomplished per Part 11 of             approved the incorporation by reference
                                                                                                                                                            DATES: This AD is effective July 10,
                                           Aviation Partners Boeing Service Bulletin               (IBR) of the service information listed in this
                                           AP767–57–010, Revision 11, dated April 3,               paragraph under 5 U.S.C. 552(a) and 1 CFR                2018.
                                           2017: Where Aviation Partners Boeing                    part 51.                                                    The Director of the Federal Register
                                           Service Bulletin AP767–57–010, Revision 11,                (2) You must use this service information             approved the incorporation by reference
                                           dated April 3, 2017, specifies repeating the            as applicable to do the actions required by              of a certain publication listed in this AD
                                           post-repair HFEC inspection ‘‘in Part 9,’’ this         this AD, unless the AD specifies otherwise.              as of July 10, 2018.


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Document Created: 2018-11-02 11:47:17
Document Modified: 2018-11-02 11:47:17
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective July 10, 2018.
ContactAllen Rauschendorfer, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA; phone and fax: 206-231-3528; email: [email protected]
FR Citation83 FR 25885 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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