81_FR_72714 81 FR 72511 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 72511 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 203 (October 20, 2016)

Page Range72511-72515
FR Document2016-23078

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-300, -400, and -500 series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the aft pressure bulkhead is subject to widespread fatigue damage (WFD). This AD requires repetitive inspections of the aft pressure bulkhead web for any cracking, incorrectly drilled fastener holes, and elongated fastener holes; and related investigative and corrective actions, if necessary. We are issuing this AD to detect and correct fatigue cracking of the aft pressure bulkhead web at the ``Y''-chord, which could result in reduced structural integrity of the airplane and rapid decompression of the fuselage.

Federal Register, Volume 81 Issue 203 (Thursday, October 20, 2016)
[Federal Register Volume 81, Number 203 (Thursday, October 20, 2016)]
[Rules and Regulations]
[Pages 72511-72515]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-23078]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-6538; Directorate Identifier 2015-NM-031-AD; 
Amendment 39-18668; AD 2016-20-02]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model 737-300, -400, and -500 series airplanes. This 
AD was prompted by an evaluation by the design approval holder (DAH) 
indicating that the aft pressure bulkhead is subject to widespread 
fatigue damage (WFD). This AD requires repetitive inspections of the 
aft pressure bulkhead web for any cracking, incorrectly drilled 
fastener holes, and elongated fastener holes; and related investigative 
and corrective actions, if necessary. We are issuing this AD to detect 
and correct fatigue cracking of the aft pressure bulkhead web at the 
``Y''-chord, which could result in reduced structural

[[Page 72512]]

integrity of the airplane and rapid decompression of the fuselage.

DATES: This AD is effective November 25, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of November 25, 
2016.

ADDRESSES: For service information identified in this final rule, 
contact Boeing Commercial Airplanes, Attention: Data & Services 
Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 
206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view this referenced service information 
at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., 
Renton, WA. For information on the availability of this material at the 
FAA, call 425-227-1221. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
6538.

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-
6538; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and 
other information. The address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, 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: Payman Soltani, Aerospace Engineer, 
Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification 
Office, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; telephone: 
562-627-5313; fax: 562-627-5210; 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 737-100, -200, -200C, -300, -400, and -500 series airplanes. The 
NPRM published in the Federal Register on November 30, 2015 (80 FR 
74731) (``the NPRM''). The NPRM was prompted by an evaluation by the 
DAH indicating that the aft pressure bulkhead is subject to WFD. The 
NPRM proposed to require repetitive inspections of the aft pressure 
bulkhead web for any cracking, incorrectly drilled fastener holes, and 
elongated fastener holes, and related investigative and corrective 
actions, if necessary. We are issuing this AD to detect and correct 
fatigue cracking of the aft pressure bulkhead web at the ``Y''-chord, 
which could result in reduced structural integrity of the airplane and 
rapid decompression of the fuselage.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM and 
the FAA's response to each comment.

Effect of Winglets on Accomplishment of the Proposed Actions

    Aviation Partners Boeing stated that the installation of winglets 
per supplemental type certificate (STC) ST01219SE does not affect the 
accomplishment of the manufacturer's service instructions.
    We agree with the commenter. We have redesignated paragraph (c) of 
the NPRM as paragraph (c)(1) in this final rule and added a new 
paragraph (c)(2) to state that STC ST01219SE does not affect the 
mitigating action or accomplishment of the actions required by this 
final rule. Therefore, for airplanes on which STC ST01219SE is 
installed, ``a change in product'' alternative method of compliance 
(AMOC) approval request is not necessary to comply with the 
requirements of 14 CFR 39.71.

Request To Clarify the Proposed Requirements of the NPRM

    Mr. Cas Lausberg stated that the subject of the NPRM is addressed 
in AD 99-08-23, Amendment 39-11132 (64 FR 19879, April 23, 1999) (``AD 
99-08-23''), which was superseded by AD 2012-18-13 R1, Amendment 39-
17429 (78 FR 27020, May 9, 2013) (``AD 2012-18-13 R1''). The commenter 
questioned the need for the new NPRM.
    We agree to provide clarification. As stated in the ``Discussion'' 
section of the NPRM, this final rule is being issued as part of the 
overall joint effort by Boeing and the FAA to satisfy requirements of 
the FAA's WFD final rule (75 FR 69746, November 15, 2010), which became 
effective on January 14, 2011. The inspections required by AD 99-08-23 
and AD 2012-18-13 R1 do not address WFD concerns. However, Boeing Alert 
Service Bulletin 737-53A1214, Revision 5, dated January 30, 2015, 
addresses WFD with new inspection requirements, which incorporate a 
compliance time (threshold) corresponding to the WFD inspection start 
point (ISP) and shorter repetitive intervals where indicated. These 
requirements are included in this AD. We have not changed this AD in 
this regard.

Request To Revise the Term ``Global Fatigue Damage''

    Boeing requested that the term ``global fatigue damage'' be changed 
to ``widespread fatigue damage'' in the NPRM. Boeing stated that this 
is the first time it has seen the term ``global'' used to describe WFD. 
Boeing commented that it is better not to introduce a new term.
    We agree with the commenter. Although the ``Discussion'' section of 
the proposed rule is not carried over into the final rule, we agree 
that the term ``global fatigue damage'' should not be introduced as a 
new term. We have not changed this AD in this regard.

Request To Correct Reference to Group 1 LOV (Limit of Validity)

    Boeing requested that we change the wording in the ``Differences 
Between This Proposed AD and the Service Information'' paragraph of the 
NPRM, which referred to WFD-based inspections specified in certain 
tables of Boeing Alert Service Bulletin 737-53A1214, Revision 5, dated 
January 30, 2015. The NPRM stated that the WFD-based inspections would 
affect only Group 2 airplanes because Group 1 airplanes will reach 
their LOV before the compliance times specified ``in tables 9, 10, and 
11'' of Boeing Alert Service Bulletin 737-53A1214, Revision 5, dated 
January 30, 2015.
    Boeing stated that the inspections listed in tables 9, 10, and 11 
of Boeing Alert Service Bulletin 737-53A1214, Revision 5, dated January 
30, 2015, also include non-WFD inspections that are required prior to 
the ISP threshold of 76,000 cycles. Boeing stated that, therefore, it 
is not true to say that Group 1 airplanes will reach their limit of 
validity before the compliance times specified in tables 9, 10 and 11.
    We partially agree with the commenter. Although the ``Differences 
Between This Proposed AD and the Service Information'' paragraph of the 
proposed rule is not carried over into the final rule, we agree to 
provide clarification.
    Since AD 2012-18-13 R1 was issued, Boeing issued Alert Service 
Bulletin 737-53A1214, Revision 5, dated January 30, 2015. Affected 
airplanes are now divided into two groups: Group 1, line numbers 1 
through 2565 inclusive; and Group 2, line numbers 2566 through

[[Page 72513]]

3132 inclusive. Boeing's evaluation determined that inspections to 
address WFD concerns are required for the aft pressure bulkhead web at 
the ``Y'' chord at an ISP of 76,000 total flight cycles. Since Group 1 
airplanes will reach their LOV of 75,000 total flight cycles (34,000 
total flight cycles for line numbers 1 through 291 inclusive), which is 
prior to this ISP, no WFD inspections are provided for those airplanes. 
For Group 2 airplanes, which have an LOV of 85,000 total flight cycles, 
new tables 9, 10, and 11 of Boeing Alert Service Bulletin 737-53A1214, 
Revision 5, dated January 30, 2015, include inspections to address WFD. 
We have not changed this AD in this regard.

Request To Clarify the Applicability

    Boeing requested that we clarify the applicability of the proposed 
AD. Boeing stated that Model 737-100, -200, and -200C airplanes should 
be removed from the ``Applicability'' paragraph. Boeing stated that the 
Group 2 airplanes only include Model 737-300, -400, and -500 airplanes.
    We agree with the commenter's request for the reasons stated above. 
We have revised the applicability in paragraph (c) of this AD to remove 
Model 737-100, -200, and -200C series airplanes and revised the SUMMARY 
section to specify certain Model 737-300, -400, and -500 series 
airplanes.

Request To Clarify Airplanes Affected by Terminating Action Provisions

    Boeing requested that we change the wording for the terminating 
action in paragraph (j) of the proposed AD. Boeing stated that the 
paragraph should specify that the terminating action applies only to 
Group 2 airplanes. Boeing stated that specifying Group 2 airplanes 
clearly states the intent of the terminating action.
    We agree with the commenter's request for the reasons stated above. 
We have expanded the structure of paragraph (j) of this AD accordingly. 
In addition, we have clarified that the terminating action does not 
apply to stringer S-5L to S-7L and stringer S-5R to S-9R, as specified 
in AD 2012-18-13 R1 and Boeing Alert Service Bulletin 737-53A1214, 
Revision 5, dated January 30, 2015.

Request To Revise the Inspections for Group 2 Airplanes

    All Nippon Airways (ANA) requested that we revise the inspection 
requirements in the proposed AD for Group 2 airplanes. ANA requested 
that we either mandate the inspections in tables 10 and 11 of Boeing 
Alert Service Bulletin 737-53A1214, Revision 5, dated January 30, 2015, 
for only Group 2 airplanes with 76,000 flight cycles and more, or 
create a new NPRM to supersede AD 2012-18-13 R1 to mandate all 
inspection requirements using Boeing Alert Service Bulletin 737-
53A1214, Revision 5, dated January 30, 2015. ANA stated that if a new 
proposed rule is created, it requests that credit be given for any 
previously approved AMOCs to AD 2012-18-13 R1, to reduce additional 
burden for operators and the FAA.
    We agree with the commenter's request for the reasons stated by the 
commenter. The intent of this final rule is to address the WFD concerns 
in accordance with the FAA's WFD final rule (75 FR 69746, November 15, 
2010). We have revised paragraphs (g), (h), and (l) of this AD 
accordingly.

Additional Changes to This AD

    In paragraphs (g) and (h) of this AD, we have clarified the 
compliance times by explicitly stating the compliance times instead of 
referring to the compliance tables in paragraph 1.E., ``Compliance,'' 
of Boeing Alert Service Bulletin 737-53A1214, Revision 5, dated January 
30, 2015.
    The actions in paragraph (h) of the proposed AD states to do 
detailed and eddy current inspections of the aft pressure bulkhead web 
from the forward or aft side of the bulkhead for any cracking, 
incorrectly drilled fastener hole, and elongated fastener hole. In this 
AD, we have clarified the actions by providing the operators the option 
of doing detailed and LFEC inspections from the aft side of the aft 
pressure bulkhead, or doing a detailed and HFEC inspections from the 
forward side of the aft pressure bulkhead, for any cracking, 
incorrectly drilled fastener hole, and elongated fastener hole.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD 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 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 737-53A1214, Revision 5, 
dated January 30, 2015. The service information describes procedures 
for, among other actions, repetitive inspections of the aft pressure 
bulkhead web for any cracking, incorrectly drilled fastener holes, and 
elongated fastener holes; and related investigative and corrective 
actions. 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 122 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                  Cost on U.S.
             Action                     Labor cost           Parts cost     Cost per product       operators
----------------------------------------------------------------------------------------------------------------
Inspections of the web at the    Up to 60 work-hours x                $0   Up to $5,100 per    Up to $622,200
 ``Y''-chord.                     $85 per hour = Up to                      inspection cycle.   per inspection
                                  $5,100 per inspection                                         cycle.
                                  cycle.
----------------------------------------------------------------------------------------------------------------

    We have received no definitive data that will enable us to provide 
cost estimates for the on-condition actions 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:

[[Page 72514]]

``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.

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,
    (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):

2016-20-02 The Boeing Company: Amendment 39-18668; Docket No. FAA-
2015-6538; Directorate Identifier 2015-NM-031-AD.

(a) Effective Date

    This AD is effective November 25, 2016.

(b) Affected ADs

    This AD affects AD 2012-18-13 R1, Amendment 39-17429 (78 FR 
27020, May 9, 2013) (``AD 2012-18-13 R1'').

(c) Applicability

    (1) This AD applies to The Boeing Company Model 737-300, -400, 
and -500 series airplanes, certificated in any category, identified 
as Group 2 in Boeing Alert Service Bulletin 737-53A1214, Revision 5, 
dated January 30, 2015.
    (2) Installation of Supplemental Type Certificate (STC) 
ST01219SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/EBD1CEC7B301293E86257CB30045557A?OpenDocument&Highlight=st01219s) 
does not affect the ability to accomplish the actions required by 
this AD. Therefore, for airplanes on which STC ST01219SE is 
installed, a ``change in product'' alternative method of compliance 
(AMOC) approval request is not necessary to comply with the 
requirements of 14 CFR 39.17.

(d) Subject

    Air Transport Association (ATA) of America Code 53, Fuselage.

(e) Unsafe Condition

    This AD was prompted by an evaluation by the design approval 
holder indicating that the aft pressure bulkhead is subject to 
widespread fatigue damage. We are issuing this AD to detect and 
correct fatigue cracking of the aft pressure bulkhead web at the 
``Y''-chord, which could result in reduced structural integrity of 
the airplane and rapid decompression of the fuselage.

(f) Compliance

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

(g) Repetitive Inspections of the Aft Pressure Bulkhead Web at the 
``Y''-Chord Upper Bulkhead

    Within 76,000 total flight cycles, or within 4,500 flight cycles 
since the most recent low frequency eddy current (LFEC) inspection 
accomplished in accordance with AD 2012-18-13 R1, or within 9,500 
flight cycles since the most recent high frequency eddy current 
(HFEC) inspection accomplished in accordance with AD 2012-18-13 R1, 
whichever occurs latest: Do detailed and LFEC inspections from the 
aft side of the aft pressure bulkhead web, or do detailed and HFEC 
inspections from the forward side of the aft pressure bulkhead web, 
for any cracking, incorrectly drilled fastener hole, and elongated 
fastener hole, and do all applicable related investigative and 
corrective actions, in accordance with Part I of the Accomplishment 
Instructions of Boeing Alert Service Bulletin 737-53A1214, Revision 
5, dated January 30, 2015, except as required by paragraph (i) of 
this AD. Do all related investigative and corrective actions before 
further flight. If any cracking, incorrectly drilled fastener hole, 
or elongated fastener hole is found, before further flight, repair 
the aft pressure bulkhead web using a method approved in accordance 
with the procedures specified in paragraph (l) of this AD. 
Thereafter, repeat the inspections at the applicable times specified 
in table 10 of paragraph 1.E., ``Compliance'' of Boeing Alert 
Service Bulletin 737-53A1214, Revision 5, dated January 30, 2015.

(h) Repetitive Inspections of the Aft Pressure Bulkhead Web at the 
``Y''-Chord Below S-15

    Within 76,000 total flight cycles, or within 4,500 flight cycles 
since the most recent LFEC inspection accomplished in accordance 
with AD 2012-18-13 R1, or within 9,500 flight cycles since the most 
recent HFEC inspection accomplished in accordance with AD 2012-18-13 
R1, whichever occurs latest: Do detailed and LFEC inspections from 
the aft side of the aft pressure bulkhead, or do detailed and HFEC 
inspections from the forward side of the aft pressure bulkhead, for 
any cracking, incorrectly drilled fastener hole, and elongated 
fastener hole, and do all applicable corrective actions, in 
accordance with Part III of the Accomplishment Instructions of 
Boeing Alert Service Bulletin 737-53A1214, Revision 5, dated January 
30, 2015, except as required by paragraph (i) of this AD. Do all 
corrective actions before further flight. If any cracking, 
incorrectly drilled fastener hole, or elongated fastener hole is 
found, before further flight, repair the aft pressure bulkhead web 
using a method approved in accordance with the procedures specified 
in paragraph (l) of this AD. Thereafter, repeat the inspections at 
the applicable times specified in table 11 of paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 737-53A1214, 
Revision 5, dated January 30, 2015.

(i) Exception to the Service Information

    Where Boeing Alert Service Bulletin 737-53A1214, Revision 5, 
dated January 30, 2015, specifies to contact Boeing for repair 
instructions: Before further flight, repair using a method approved 
in accordance with the procedures specified in paragraph (l) of this 
AD.

(j) Terminating Action for Other Rulemaking

    (1) For Group 2 airplanes specified in Boeing Alert Service 
Bulletin 737-53A1214, Revision 5, dated January 30, 2015: 
Accomplishing the actions required by paragraph (g) of this AD 
terminates the inspections required by paragraph (k) of AD 2012-18-
13 R1, except for stringer S-5L to S-7L and stringer S-5R to S-9R.
    (2) For Group 2 airplanes specified in Boeing Alert Service 
Bulletin 737-53A1214, Revision 5, dated January 30, 2015: 
Accomplishing the actions required by paragraph (h) of this AD 
terminates the inspections required by paragraph (l) of AD 2012-18-
13 R1.

(k) Credit for Previous Actions

    This paragraph provides credit for the actions required by 
paragraphs (g) and (h) of this AD, if the actions were performed 
before the effective date of this AD using Boeing Alert Service 
Bulletin 737-53A1214, Revision 4, dated December 16, 2011.

[[Page 72515]]

(l) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles Aircraft Certification Office 
(ACO), 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 ACO, send it to the 
attention of the person identified in paragraph (m)(1) 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 Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Los Angeles ACO, 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) AMOCs approved previously for AD 2012-18-13 R1, Amendment 
39-17429 (78 FR 27020, May 9, 2013), are approved as AMOCs for the 
corresponding provisions of this AD.

(m) Related Information

    (1) For more information about this AD, contact Payman Soltani, 
Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles ACO, 
3960 Paramount Boulevard, Lakewood CA 90712-4137; telephone: 562-
627-5313; fax: 562-627-5210; email: [email protected].
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (n)(3) and (n)(4) of this AD.

(n) 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) Boeing Alert Service Bulletin 737-53A1214, Revision 5, dated 
January 30, 2015.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-
5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (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 Renton, Washington, on September 16, 2016.
Thomas Groves,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-23078 Filed 10-19-16; 8:45 am]
BILLING CODE 4910-13-P



                                                                   Federal Register / Vol. 81, No. 203 / Thursday, October 20, 2016 / Rules and Regulations                                            72511

                                                  TABLE 1 TO PARAGRAPH (j)(4) OF THIS                     Sanjay Ralhan, Aerospace Engineer,                       (6) The following service information was
                                                                                                          International Branch, ANM–116, Transport              approved for IBR on August 28, 2007 (72 FR
                                                  AD—ASM REPLACEMENT—Continued                                                                                  40222, July 24, 2007).
                                                                                                          Airplane Directorate, FAA, 1601 Lind
                                                                                                          Avenue SW., Renton, WA 98057–3356;                       (i) Airbus A318/A319/A320/A321 Fuel
                                                         Affected airplane                                                                                      Airworthiness Limitations, Document
                                                                                        ASM part No.      telephone 425–227–1405; fax 425–227–1149.
                                                           configuration
                                                                                                          Information may be emailed to: 9-ANM-116-             95A.1931/05, Issue 1, dated December 19,
                                                  Post-Airbus Service Bulletin                            AMOC-REQUESTS@faa.gov.                                2005.
                                                    A320–47–1011 ..................     2060017–102          (i) Before using any approved AMOC,                   (ii) Reserved.
                                                                                                          notify your appropriate principal inspector,             (7) For service information identified in
                                                                                                          or lacking a principal inspector, the manager         this AD, contact Airbus, Airworthiness
                                                  (k) Retained Requirement: No Alternative
                                                                                                          of the local flight standards district office/        Office—EIAS, 1 Rond Point Maurice
                                                  Actions, Intervals, and/or CDCCLs, With No
                                                                                                          certificate holding district office. The AMOC         Bellonte, 31707 Blagnac Cedex, France;
                                                  Changes
                                                                                                          approval letter must specifically reference           telephone +33 5 61 93 36 96; fax +33 5 61
                                                     This paragraph restates the requirements of                                                                93 44 51; email account.airworth-eas@
                                                                                                          this AD.
                                                  paragraph (k) of AD 2012–20–07, with no                                                                       airbus.com; Internet http://www.airbus.com.
                                                                                                             (ii) AMOCs approved previously for AD
                                                  changes. Except as required by paragraph (l)                                                                     (8) You may view this service information
                                                  of this AD, after accomplishing the revisions           2012–20–07 are approved as AMOCs for the
                                                                                                          corresponding provisions of this AD.                  at the FAA, Transport Airplane Directorate,
                                                  required by paragraph (j) of this AD, no                                                                      1601 Lind Avenue SW., Renton, WA. For
                                                  alternative actions (e.g., inspections),                   (2) Contacting the Manufacturer: As of the
                                                                                                          effective date of this AD, for any requirement        information on the availability of this
                                                  intervals, and/or CDCCLs may be used other                                                                    material at the FAA, call 425–227–1221.
                                                  than those specified in Airbus A318/A319/               in this AD to obtain corrective actions from
                                                                                                                                                                   (9) You may view this service information
                                                  A320/A321 ALS Part 5—Fuel Airworthiness                 a manufacturer, the action must be
                                                                                                                                                                that is incorporated by reference at the
                                                  Limitations, dated February 28, 2006, as                accomplished using a method approved by
                                                                                                                                                                National Archives and Records
                                                  defined in Airbus A318/A319/A320/A321                   the Manager, International Branch, ANM–
                                                                                                                                                                Administration (NARA). For information on
                                                  Fuel Airworthiness Limitations, Document                116, Transport Airplane Directorate, FAA; or
                                                                                                                                                                the availability of this material at NARA, call
                                                  95A.1931/05, Issue 4, dated August 26, 2010,            EASA; or Airbus’s EASA DOA. If approved
                                                                                                                                                                202–741–6030, or go to: http://www.archives.
                                                  unless the actions, intervals, and/or CDCCLs            by the DOA, the approval must include the
                                                                                                                                                                gov/federal-register/cfr/ibr-locations.html.
                                                  are approved as an alternative method of                DOA-authorized signature.
                                                  compliance (AMOC) in accordance with the                                                                        Issued in Renton, Washington, on
                                                                                                          (o) Related Information                               September 28, 2016.
                                                  procedures specified in paragraph (n)(1) of
                                                  this AD.                                                  (1) Refer to Mandatory Continuing                   Dionne Palermo,
                                                                                                          Airworthiness Information (MCAI) EASA
                                                  (l) New Requirement of This AD: Revise the                                                                    Acting Manager, Transport Airplane
                                                                                                          Airworthiness Directive 2014–0260, dated
                                                  Maintenance or Inspection Program                                                                             Directorate, Aircraft Certification Service.
                                                                                                          December 5, 2014, for related information.
                                                     Within 60 days after the effective date of           This MCAI may be found in the AD docket               [FR Doc. 2016–24078 Filed 10–19–16; 8:45 am]
                                                  this AD, revise the maintenance or inspection           on the Internet at http://www.regulations.gov         BILLING CODE 4910–13–P
                                                  program, as applicable, by incorporating the            by searching for and locating Docket No.
                                                  fuel airworthiness limitations (e.g., life              FAA–2016–5589.
                                                  limits, tasks, and CDCCLs, and associated                 (2) Service information identified in this          DEPARTMENT OF TRANSPORTATION
                                                  thresholds and intervals) described in Airbus           AD that is not incorporated by reference is
                                                  A318/A319/A320/A321 ALS Part 5, Fuel                    available at the addresses specified in               Federal Aviation Administration
                                                  Airworthiness Limitations, Revision 01,                 paragraphs (p)(7) and (p)(8) of this AD.
                                                  dated July 9, 2014. The initial compliance                                                                    14 CFR Part 39
                                                  times for the tasks are at the times specified          (p) Material Incorporated by Reference
                                                  in Airbus A318/A319/A320/A321 ALS Part                     (1) The Director of the Federal Register           [Docket No. FAA–2015–6538; Directorate
                                                  5, Fuel Airworthiness Limitations, Revision             approved the incorporation by reference               Identifier 2015–NM–031–AD; Amendment
                                                  01, dated July 9, 2014, or within 60 days after         (IBR) of the service information listed in this       39–18668; AD 2016–20–02]
                                                  the effective date of this AD, whichever                paragraph under 5 U.S.C. 552(a) and 1 CFR
                                                  occurs later. Incorporating the requirements                                                                  RIN 2120–AA64
                                                                                                          part 51.
                                                  of this paragraph terminates the requirements              (2) You must use this service information
                                                  of paragraphs (g) through (k) of this AD.                                                                     Airworthiness Directives; The Boeing
                                                                                                          as applicable to do the actions required by
                                                                                                          this AD, unless this AD specifies otherwise.
                                                                                                                                                                Company Airplanes
                                                  (m) New Requirement of This AD: No
                                                  Alternative Actions, Intervals, or CDCCLs                  (3) The following service information was          AGENCY:  Federal Aviation
                                                                                                          approved for IBR on November 25, 2016.                Administration (FAA), DOT.
                                                    After the maintenance or inspection                      (i) Airbus A318/A319/A320/A321
                                                  program has been revised as required by                                                                       ACTION: Final rule.
                                                                                                          Airworthiness Limitations Section (ALS) Part
                                                  paragraph (l) of this AD, no alternative
                                                                                                          5, Fuel Airworthiness Limitations, Revision           SUMMARY:    We are adopting a new
                                                  actions (e.g., inspections), intervals, or
                                                                                                          01, dated July 9, 2014. The title page of this
                                                  CDCCLs may be used unless the actions,                                                                        airworthiness directive (AD) for certain
                                                                                                          document does not contain the revision date.
                                                  intervals, or CDCCLs are approved as an                                                                       The Boeing Company Model 737–300,
                                                  AMOC in accordance with the procedures                  The remaining pages of this document do not
                                                                                                          include the revision level.                           –400, and –500 series airplanes. This
                                                  specified in paragraph (n)(1) of this AD.                                                                     AD was prompted by an evaluation by
                                                                                                             (ii) Reserved.
                                                  (n) Other FAA AD Provisions                                (4) The following service information was          the design approval holder (DAH)
                                                    The following provisions also apply to this           approved for IBR on November 21, 2012 (77             indicating that the aft pressure bulkhead
                                                  AD:                                                     FR 63716, October 17, 2012).                          is subject to widespread fatigue damage
                                                    (1) Alternative Methods of Compliance                    (i) Airbus A318/A319/A320/A321 Fuel                (WFD). This AD requires repetitive
                                                  (AMOCs): The Manager, International                     Airworthiness Limitations, Document                   inspections of the aft pressure bulkhead
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                                                  Branch, ANM–116, Transport Airplane                     95A.1931/05, Issue 4, dated August 26, 2010.          web for any cracking, incorrectly drilled
                                                  Directorate, FAA, has the authority to                     (ii) Reserved.
                                                                                                                                                                fastener holes, and elongated fastener
                                                  approve AMOCs for this AD, if requested                    (5) The following service information was
                                                                                                          approved for IBR on December 14, 2009 (74
                                                                                                                                                                holes; and related investigative and
                                                  using the procedures found in 14 CFR 39.19.
                                                  In accordance with 14 CFR 39.19, send your              FR 62219, November 27, 2009).                         corrective actions, if necessary. We are
                                                  request to your principal inspector or local               (i) Airbus A318/A319/A320/A321 Fuel                issuing this AD to detect and correct
                                                  Flight Standards District Office, as                    Airworthiness Limitations, Document                   fatigue cracking of the aft pressure
                                                  appropriate. If sending information directly            95A.1931/05, Issue 2, dated July 8, 2008.             bulkhead web at the ‘‘Y’’-chord, which
                                                  to the International Branch, send it to ATTN:              (ii) Reserved.                                     could result in reduced structural


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                                                  72512            Federal Register / Vol. 81, No. 203 / Thursday, October 20, 2016 / Rules and Regulations

                                                  integrity of the airplane and rapid                     is subject to WFD. The NPRM proposed                  which incorporate a compliance time
                                                  decompression of the fuselage.                          to require repetitive inspections of the              (threshold) corresponding to the WFD
                                                  DATES: This AD is effective November                    aft pressure bulkhead web for any                     inspection start point (ISP) and shorter
                                                  25, 2016.                                               cracking, incorrectly drilled fastener                repetitive intervals where indicated.
                                                    The Director of the Federal Register                  holes, and elongated fastener holes, and              These requirements are included in this
                                                  approved the incorporation by reference                 related investigative and corrective                  AD. We have not changed this AD in
                                                  of a certain publication listed in this AD              actions, if necessary. We are issuing this            this regard.
                                                  as of November 25, 2016.                                AD to detect and correct fatigue
                                                                                                                                                                Request To Revise the Term ‘‘Global
                                                  ADDRESSES: For service information                      cracking of the aft pressure bulkhead                 Fatigue Damage’’
                                                  identified in this final rule, contact                  web at the ‘‘Y’’-chord, which could
                                                                                                          result in reduced structural integrity of                Boeing requested that the term ‘‘global
                                                  Boeing Commercial Airplanes,
                                                                                                          the airplane and rapid decompression of               fatigue damage’’ be changed to
                                                  Attention: Data & Services Management,
                                                                                                          the fuselage.                                         ‘‘widespread fatigue damage’’ in the
                                                  P.O. Box 3707, MC 2H–65, Seattle, WA
                                                                                                                                                                NPRM. Boeing stated that this is the first
                                                  98124–2207; telephone 206–544–5000,                     Comments                                              time it has seen the term ‘‘global’’ used
                                                  extension 1; fax 206–766–5680; Internet
                                                                                                            We gave the public the opportunity to               to describe WFD. Boeing commented
                                                  https://www.myboeingfleet.com. You
                                                                                                          participate in developing this AD. The                that it is better not to introduce a new
                                                  may view this referenced service
                                                                                                          following presents the comments                       term.
                                                  information at the FAA, Transport                                                                                We agree with the commenter.
                                                                                                          received on the NPRM and the FAA’s
                                                  Airplane Directorate, 1601 Lind Avenue                                                                        Although the ‘‘Discussion’’ section of
                                                                                                          response to each comment.
                                                  SW., Renton, WA. For information on                                                                           the proposed rule is not carried over
                                                  the availability of this material at the                Effect of Winglets on Accomplishment                  into the final rule, we agree that the
                                                  FAA, call 425–227–1221. It is also                      of the Proposed Actions                               term ‘‘global fatigue damage’’ should not
                                                  available on the Internet at http://                       Aviation Partners Boeing stated that               be introduced as a new term. We have
                                                  www.regulations.gov by searching for                    the installation of winglets per                      not changed this AD in this regard.
                                                  and locating Docket No. FAA–2015–                       supplemental type certificate (STC)
                                                  6538.                                                   ST01219SE does not affect the                         Request To Correct Reference to Group
                                                                                                          accomplishment of the manufacturer’s                  1 LOV (Limit of Validity)
                                                  Examining the AD Docket
                                                                                                          service instructions.                                    Boeing requested that we change the
                                                    You may examine the AD docket on                         We agree with the commenter. We                    wording in the ‘‘Differences Between
                                                  the Internet at http://                                 have redesignated paragraph (c) of the                This Proposed AD and the Service
                                                  www.regulations.gov by searching for                    NPRM as paragraph (c)(1) in this final                Information’’ paragraph of the NPRM,
                                                  and locating Docket No. FAA–2015–                       rule and added a new paragraph (c)(2)                 which referred to WFD-based
                                                  6538; or in person at the Docket                        to state that STC ST01219SE does not                  inspections specified in certain tables of
                                                  Management Facility between 9 a.m.                      affect the mitigating action or                       Boeing Alert Service Bulletin 737–
                                                  and 5 p.m., Monday through Friday,                      accomplishment of the actions required                53A1214, Revision 5, dated January 30,
                                                  except Federal holidays. The AD docket                  by this final rule. Therefore, for                    2015. The NPRM stated that the WFD-
                                                  contains this AD, the regulatory                        airplanes on which STC ST01219SE is                   based inspections would affect only
                                                  evaluation, any comments received, and                  installed, ‘‘a change in product’’                    Group 2 airplanes because Group 1
                                                  other information. The address for the                  alternative method of compliance                      airplanes will reach their LOV before
                                                  Docket Office (phone: 800–647–5527) is                  (AMOC) approval request is not                        the compliance times specified ‘‘in
                                                  Docket Management Facility, U.S.                        necessary to comply with the                          tables 9, 10, and 11’’ of Boeing Alert
                                                  Department of Transportation, Docket                    requirements of 14 CFR 39.71.                         Service Bulletin 737–53A1214, Revision
                                                  Operations, M–30, West Building                                                                               5, dated January 30, 2015.
                                                  Ground Floor, Room W12–140, 1200                        Request To Clarify the Proposed                          Boeing stated that the inspections
                                                  New Jersey Avenue SE., Washington,                      Requirements of the NPRM                              listed in tables 9, 10, and 11 of Boeing
                                                  DC 20590.                                                  Mr. Cas Lausberg stated that the                   Alert Service Bulletin 737–53A1214,
                                                  FOR FURTHER INFORMATION CONTACT:                        subject of the NPRM is addressed in AD                Revision 5, dated January 30, 2015, also
                                                  Payman Soltani, Aerospace Engineer,                     99–08–23, Amendment 39–11132 (64                      include non-WFD inspections that are
                                                  Airframe Branch, ANM–120L, FAA, Los                     FR 19879, April 23, 1999) (‘‘AD 99–08–                required prior to the ISP threshold of
                                                  Angeles Aircraft Certification Office,                  23’’), which was superseded by AD                     76,000 cycles. Boeing stated that,
                                                  3960 Paramount Boulevard, Lakewood,                     2012–18–13 R1, Amendment 39–17429                     therefore, it is not true to say that Group
                                                  CA 90712–4137; telephone: 562–627–                      (78 FR 27020, May 9, 2013) (‘‘AD 2012–                1 airplanes will reach their limit of
                                                  5313; fax: 562–627–5210; email:                         18–13 R1’’). The commenter questioned                 validity before the compliance times
                                                  payman.soltani@faa.gov.                                 the need for the new NPRM.                            specified in tables 9, 10 and 11.
                                                  SUPPLEMENTARY INFORMATION:                                 We agree to provide clarification. As                 We partially agree with the
                                                                                                          stated in the ‘‘Discussion’’ section of the           commenter. Although the ‘‘Differences
                                                  Discussion                                              NPRM, this final rule is being issued as              Between This Proposed AD and the
                                                    We issued a notice of proposed                        part of the overall joint effort by Boeing            Service Information’’ paragraph of the
                                                  rulemaking (NPRM) to amend 14 CFR                       and the FAA to satisfy requirements of                proposed rule is not carried over into
                                                  part 39 by adding an AD that would                      the FAA’s WFD final rule (75 FR 69746,                the final rule, we agree to provide
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                                                  apply to certain The Boeing Company                     November 15, 2010), which became                      clarification.
                                                  Model 737–100, –200, –200C, –300,                       effective on January 14, 2011. The                       Since AD 2012–18–13 R1 was issued,
                                                  –400, and –500 series airplanes. The                    inspections required by AD 99–08–23                   Boeing issued Alert Service Bulletin
                                                  NPRM published in the Federal                           and AD 2012–18–13 R1 do not address                   737–53A1214, Revision 5, dated January
                                                  Register on November 30, 2015 (80 FR                    WFD concerns. However, Boeing Alert                   30, 2015. Affected airplanes are now
                                                  74731) (‘‘the NPRM’’). The NPRM was                     Service Bulletin 737–53A1214, Revision                divided into two groups: Group 1, line
                                                  prompted by an evaluation by the DAH                    5, dated January 30, 2015, addresses                  numbers 1 through 2565 inclusive; and
                                                  indicating that the aft pressure bulkhead               WFD with new inspection requirements,                 Group 2, line numbers 2566 through


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                                                                   Federal Register / Vol. 81, No. 203 / Thursday, October 20, 2016 / Rules and Regulations                                        72513

                                                  3132 inclusive. Boeing’s evaluation                     terminating action does not apply to                  hole, and elongated fastener hole. In this
                                                  determined that inspections to address                  stringer S–5L to S–7L and stringer S–5R               AD, we have clarified the actions by
                                                  WFD concerns are required for the aft                   to S–9R, as specified in AD 2012–18–13                providing the operators the option of
                                                  pressure bulkhead web at the ‘‘Y’’ chord                R1 and Boeing Alert Service Bulletin                  doing detailed and LFEC inspections
                                                  at an ISP of 76,000 total flight cycles.                737–53A1214, Revision 5, dated January                from the aft side of the aft pressure
                                                  Since Group 1 airplanes will reach their                30, 2015.                                             bulkhead, or doing a detailed and HFEC
                                                  LOV of 75,000 total flight cycles (34,000                                                                     inspections from the forward side of the
                                                                                                          Request To Revise the Inspections for
                                                  total flight cycles for line numbers 1                                                                        aft pressure bulkhead, for any cracking,
                                                                                                          Group 2 Airplanes
                                                  through 291 inclusive), which is prior to                                                                     incorrectly drilled fastener hole, and
                                                  this ISP, no WFD inspections are                           All Nippon Airways (ANA) requested                 elongated fastener hole.
                                                  provided for those airplanes. For Group                 that we revise the inspection
                                                                                                          requirements in the proposed AD for                   Conclusion
                                                  2 airplanes, which have an LOV of
                                                  85,000 total flight cycles, new tables 9,               Group 2 airplanes. ANA requested that                   We reviewed the relevant data,
                                                  10, and 11 of Boeing Alert Service                      we either mandate the inspections in                  considered the comments received, and
                                                  Bulletin 737–53A1214, Revision 5,                       tables 10 and 11 of Boeing Alert Service              determined that air safety and the
                                                  dated January 30, 2015, include                         Bulletin 737–53A1214, Revision 5,                     public interest require adopting this AD
                                                  inspections to address WFD. We have                     dated January 30, 2015, for only Group                with the changes described previously
                                                  not changed this AD in this regard.                     2 airplanes with 76,000 flight cycles and             and minor editorial changes. We have
                                                                                                          more, or create a new NPRM to                         determined that these minor changes:
                                                  Request To Clarify the Applicability                    supersede AD 2012–18–13 R1 to                           • Are consistent with the intent that
                                                     Boeing requested that we clarify the                 mandate all inspection requirements                   was proposed in the NPRM for
                                                  applicability of the proposed AD.                       using Boeing Alert Service Bulletin                   correcting the unsafe condition; and
                                                  Boeing stated that Model 737–100, –200,                 737–53A1214, Revision 5, dated January                  • Do not add any additional burden
                                                  and –200C airplanes should be removed                   30, 2015. ANA stated that if a new                    upon the public than was already
                                                  from the ‘‘Applicability’’ paragraph.                   proposed rule is created, it requests that            proposed in the NPRM.
                                                  Boeing stated that the Group 2 airplanes                credit be given for any previously                      We also determined that these
                                                  only include Model 737–300, –400, and                   approved AMOCs to AD 2012–18–13                       changes will not increase the economic
                                                  –500 airplanes.                                         R1, to reduce additional burden for                   burden on any operator or increase the
                                                     We agree with the commenter’s                        operators and the FAA.                                scope of this AD.
                                                  request for the reasons stated above. We                   We agree with the commenter’s
                                                  have revised the applicability in                       request for the reasons stated by the                 Related Service Information Under 1
                                                  paragraph (c) of this AD to remove                      commenter. The intent of this final rule              CFR Part 51
                                                  Model 737–100, –200, and –200C series                   is to address the WFD concerns in                       We reviewed Boeing Alert Service
                                                  airplanes and revised the SUMMARY                       accordance with the FAA’s WFD final                   Bulletin 737–53A1214, Revision 5,
                                                  section to specify certain Model 737–                   rule (75 FR 69746, November 15, 2010).                dated January 30, 2015. The service
                                                  300, –400, and –500 series airplanes.                   We have revised paragraphs (g), (h), and              information describes procedures for,
                                                                                                          (l) of this AD accordingly.                           among other actions, repetitive
                                                  Request To Clarify Airplanes Affected
                                                                                                                                                                inspections of the aft pressure bulkhead
                                                  by Terminating Action Provisions                        Additional Changes to This AD
                                                                                                                                                                web for any cracking, incorrectly drilled
                                                    Boeing requested that we change the                      In paragraphs (g) and (h) of this AD,              fastener holes, and elongated fastener
                                                  wording for the terminating action in                   we have clarified the compliance times                holes; and related investigative and
                                                  paragraph (j) of the proposed AD.                       by explicitly stating the compliance                  corrective actions. This service
                                                  Boeing stated that the paragraph should                 times instead of referring to the                     information is reasonably available
                                                  specify that the terminating action                     compliance tables in paragraph 1.E.,                  because the interested parties have
                                                  applies only to Group 2 airplanes.                      ‘‘Compliance,’’ of Boeing Alert Service               access to it through their normal course
                                                  Boeing stated that specifying Group 2                   Bulletin 737–53A1214, Revision 5,                     of business or by the means identified
                                                  airplanes clearly states the intent of the              dated January 30, 2015.                               in the ADDRESSES section.
                                                  terminating action.                                        The actions in paragraph (h) of the
                                                    We agree with the commenter’s                         proposed AD states to do detailed and                 Costs of Compliance
                                                  request for the reasons stated above. We                eddy current inspections of the aft                     We estimate that this AD affects 122
                                                  have expanded the structure of                          pressure bulkhead web from the forward                airplanes of U.S. registry.
                                                  paragraph (j) of this AD accordingly. In                or aft side of the bulkhead for any                     We estimate the following costs to
                                                  addition, we have clarified that the                    cracking, incorrectly drilled fastener                comply with this AD:
                                                                                                                        ESTIMATED COSTS
                                                            Action                                     Labor cost                            Parts cost         Cost per product    Cost on U.S. operators

                                                  Inspections of the web        Up to 60 work-hours × $85 per hour = Up to                         $0        Up to $5,100 per in-   Up to $622,200 per in-
                                                    at the ‘‘Y’’-chord.          $5,100 per inspection cycle.                                                  spection cycle.        spection cycle.
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                                                    We have received no definitive data                   Authority for This Rulemaking                         Aviation Programs, describes in more
                                                  that will enable us to provide cost                                                                           detail the scope of the Agency’s
                                                  estimates for the on-condition actions                    Title 49 of the United States Code                  authority.
                                                  specified in this AD.                                   specifies the FAA’s authority to issue
                                                                                                          rules on aviation safety. Subtitle I,                   We are issuing this rulemaking under
                                                                                                          section 106, describes the authority of               the authority described in Subtitle VII,
                                                                                                          the FAA Administrator. Subtitle VII:                  Part A, Subpart III, Section 44701:


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                                                  72514            Federal Register / Vol. 81, No. 203 / Thursday, October 20, 2016 / Rules and Regulations

                                                  ‘‘General requirements.’’ Under that                    (b) Affected ADs                                      procedures specified in paragraph (l) of this
                                                  section, Congress charges the FAA with                    This AD affects AD 2012–18–13 R1,                   AD. Thereafter, repeat the inspections at the
                                                  promoting safe flight of civil aircraft in              Amendment 39–17429 (78 FR 27020, May 9,               applicable times specified in table 10 of
                                                  air commerce by prescribing regulations                 2013) (‘‘AD 2012–18–13 R1’’).                         paragraph 1.E., ‘‘Compliance’’ of Boeing Alert
                                                  for practices, methods, and procedures                                                                        Service Bulletin 737–53A1214, Revision 5,
                                                                                                          (c) Applicability                                     dated January 30, 2015.
                                                  the Administrator finds necessary for
                                                                                                             (1) This AD applies to The Boeing
                                                  safety in air commerce. This regulation                 Company Model 737–300, –400, and –500                 (h) Repetitive Inspections of the Aft Pressure
                                                  is within the scope of that authority                   series airplanes, certificated in any category,       Bulkhead Web at the ‘‘Y’’-Chord Below S–15
                                                  because it addresses an unsafe condition                identified as Group 2 in Boeing Alert Service            Within 76,000 total flight cycles, or within
                                                  that is likely to exist or develop on                   Bulletin 737–53A1214, Revision 5, dated               4,500 flight cycles since the most recent
                                                  products identified in this rulemaking                  January 30, 2015.                                     LFEC inspection accomplished in accordance
                                                  action.                                                    (2) Installation of Supplemental Type              with AD 2012–18–13 R1, or within 9,500
                                                                                                          Certificate (STC) ST01219SE (http://                  flight cycles since the most recent HFEC
                                                  Regulatory Findings                                     rgl.faa.gov/Regulatory_and_Guidance_                  inspection accomplished in accordance with
                                                                                                          Library/rgstc.nsf/0/EBD1CEC7B301293E8625              AD 2012–18–13 R1, whichever occurs latest:
                                                    This AD will not have federalism                      7CB30045557A?
                                                  implications under Executive Order                                                                            Do detailed and LFEC inspections from the
                                                                                                          OpenDocument&Highlight=st01219s) does
                                                  13132. This AD will not have a                                                                                aft side of the aft pressure bulkhead, or do
                                                                                                          not affect the ability to accomplish the
                                                  substantial direct effect on the States, on                                                                   detailed and HFEC inspections from the
                                                                                                          actions required by this AD. Therefore, for
                                                  the relationship between the national                   airplanes on which STC ST01219SE is                   forward side of the aft pressure bulkhead, for
                                                                                                          installed, a ‘‘change in product’’ alternative        any cracking, incorrectly drilled fastener
                                                  government and the States, or on the
                                                                                                          method of compliance (AMOC) approval                  hole, and elongated fastener hole, and do all
                                                  distribution of power and
                                                                                                          request is not necessary to comply with the           applicable corrective actions, in accordance
                                                  responsibilities among the various                                                                            with Part III of the Accomplishment
                                                  levels of government.                                   requirements of 14 CFR 39.17.
                                                                                                                                                                Instructions of Boeing Alert Service Bulletin
                                                    For the reasons discussed above, I                    (d) Subject                                           737–53A1214, Revision 5, dated January 30,
                                                  certify that this AD:                                     Air Transport Association (ATA) of                  2015, except as required by paragraph (i) of
                                                    (1) Is not a ‘‘significant regulatory                 America Code 53, Fuselage.                            this AD. Do all corrective actions before
                                                  action’’ under Executive Order 12866,                   (e) Unsafe Condition                                  further flight. If any cracking, incorrectly
                                                                                                                                                                drilled fastener hole, or elongated fastener
                                                    (2) Is not a ‘‘significant rule’’ under                  This AD was prompted by an evaluation by           hole is found, before further flight, repair the
                                                  DOT Regulatory Policies and Procedures                  the design approval holder indicating that            aft pressure bulkhead web using a method
                                                  (44 FR 11034, February 26, 1979),                       the aft pressure bulkhead is subject to
                                                                                                                                                                approved in accordance with the procedures
                                                    (3) Will not affect intrastate aviation               widespread fatigue damage. We are issuing
                                                                                                                                                                specified in paragraph (l) of this AD.
                                                                                                          this AD to detect and correct fatigue cracking
                                                  in Alaska, and                                          of the aft pressure bulkhead web at the ‘‘Y’’-
                                                                                                                                                                Thereafter, repeat the inspections at the
                                                    (4) Will not have a significant                       chord, which could result in reduced                  applicable times specified in table 11 of
                                                  economic impact, positive or negative,                  structural integrity of the airplane and rapid        paragraph 1.E., ‘‘Compliance,’’ of Boeing
                                                  on a substantial number of small entities               decompression of the fuselage.                        Alert Service Bulletin 737–53A1214,
                                                                                                                                                                Revision 5, dated January 30, 2015.
                                                  under the criteria of the Regulatory                    (f) Compliance
                                                  Flexibility Act.                                                                                              (i) Exception to the Service Information
                                                                                                             Comply with this AD within the
                                                  List of Subjects in 14 CFR Part 39                      compliance times specified, unless already              Where Boeing Alert Service Bulletin 737–
                                                                                                          done.                                                 53A1214, Revision 5, dated January 30, 2015,
                                                    Air transportation, Aircraft, Aviation                                                                      specifies to contact Boeing for repair
                                                  safety, Incorporation by reference,                     (g) Repetitive Inspections of the Aft Pressure        instructions: Before further flight, repair
                                                                                                          Bulkhead Web at the ‘‘Y’’-Chord Upper                 using a method approved in accordance with
                                                  Safety.                                                 Bulkhead
                                                                                                                                                                the procedures specified in paragraph (l) of
                                                  Adoption of the Amendment                                  Within 76,000 total flight cycles, or within       this AD.
                                                                                                          4,500 flight cycles since the most recent low
                                                    Accordingly, under the authority                      frequency eddy current (LFEC) inspection              (j) Terminating Action for Other Rulemaking
                                                  delegated to me by the Administrator,                   accomplished in accordance with AD 2012–                (1) For Group 2 airplanes specified in
                                                  the FAA amends 14 CFR part 39 as                        18–13 R1, or within 9,500 flight cycles since         Boeing Alert Service Bulletin 737–53A1214,
                                                  follows:                                                the most recent high frequency eddy current           Revision 5, dated January 30, 2015:
                                                                                                          (HFEC) inspection accomplished in                     Accomplishing the actions required by
                                                  PART 39—AIRWORTHINESS                                   accordance with AD 2012–18–13 R1,                     paragraph (g) of this AD terminates the
                                                  DIRECTIVES                                              whichever occurs latest: Do detailed and              inspections required by paragraph (k) of AD
                                                                                                          LFEC inspections from the aft side of the aft         2012–18–13 R1, except for stringer S–5L to
                                                  ■ 1. The authority citation for part 39                 pressure bulkhead web, or do detailed and
                                                                                                                                                                S–7L and stringer S–5R to S–9R.
                                                  continues to read as follows:                           HFEC inspections from the forward side of
                                                                                                                                                                  (2) For Group 2 airplanes specified in
                                                                                                          the aft pressure bulkhead web, for any
                                                      Authority: 49 U.S.C. 106(g), 40113, 44701.          cracking, incorrectly drilled fastener hole,          Boeing Alert Service Bulletin 737–53A1214,
                                                                                                          and elongated fastener hole, and do all               Revision 5, dated January 30, 2015:
                                                  § 39.13   [Amended]                                     applicable related investigative and                  Accomplishing the actions required by
                                                                                                          corrective actions, in accordance with Part I         paragraph (h) of this AD terminates the
                                                  ■ 2. The FAA amends § 39.13 by adding                                                                         inspections required by paragraph (l) of AD
                                                                                                          of the Accomplishment Instructions of
                                                  the following new airworthiness
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                                                                                                          Boeing Alert Service Bulletin 737–53A1214,            2012–18–13 R1.
                                                  directive (AD):                                         Revision 5, dated January 30, 2015, except as         (k) Credit for Previous Actions
                                                  2016–20–02 The Boeing Company:                          required by paragraph (i) of this AD. Do all
                                                      Amendment 39–18668; Docket No.                      related investigative and corrective actions            This paragraph provides credit for the
                                                      FAA–2015–6538; Directorate Identifier               before further flight. If any cracking,               actions required by paragraphs (g) and (h) of
                                                      2015–NM–031–AD.                                     incorrectly drilled fastener hole, or elongated       this AD, if the actions were performed before
                                                                                                          fastener hole is found, before further flight,        the effective date of this AD using Boeing
                                                  (a) Effective Date                                      repair the aft pressure bulkhead web using a          Alert Service Bulletin 737–53A1214,
                                                    This AD is effective November 25, 2016.               method approved in accordance with the                Revision 4, dated December 16, 2011.



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                                                                   Federal Register / Vol. 81, No. 203 / Thursday, October 20, 2016 / Rules and Regulations                                        72515

                                                  (l) Alternative Methods of Compliance                   National Archives and Records                         FAA, Transport Airplane Directorate,
                                                  (AMOCs)                                                 Administration (NARA). For information on             1601 Lind Avenue SW., Renton, WA.
                                                     (1) The Manager, Los Angeles Aircraft                the availability of this material at NARA, call       For information on the availability of
                                                  Certification Office (ACO), FAA, has the                202–741–6030, or go to: http://
                                                                                                                                                                this material at the FAA, call 425–227–
                                                  authority to approve AMOCs for this AD, if              www.archives.gov/federal-register/cfr/ibr-
                                                                                                          locations.html.                                       1221. It is also available on the Internet
                                                  requested using the procedures found in 14                                                                    at http://www.regulations.gov by
                                                  CFR 39.19. In accordance with 14 CFR 39.19,               Issued in Renton, Washington, on
                                                  send your request to your principal inspector                                                                 searching for and locating Docket No.
                                                                                                          September 16, 2016.
                                                  or local Flight Standards District Office, as                                                                 FAA–2016–0465.
                                                                                                          Thomas Groves,
                                                  appropriate. If sending information directly                                                                  Examining the AD Docket
                                                  to the manager of the ACO, send it to the               Acting Manager, Transport Airplane
                                                  attention of the person identified in                   Directorate, Aircraft Certification Service.            You may examine the AD docket on
                                                  paragraph (m)(1) of this AD. Information may            [FR Doc. 2016–23078 Filed 10–19–16; 8:45 am]          the Internet at http://
                                                  be emailed to: 9-ANM-LAACO-AMOC-                        BILLING CODE 4910–13–P                                www.regulations.gov by searching for
                                                  Requests@faa.gov.                                                                                             and locating Docket No. FAA–2016–
                                                     (2) Before using any approved AMOC,
                                                  notify your appropriate principal inspector,
                                                                                                                                                                0465; or in person at the Docket
                                                                                                          DEPARTMENT OF TRANSPORTATION                          Management Facility between 9 a.m.
                                                  or lacking a principal inspector, the manager
                                                  of the local flight standards district office/                                                                and 5 p.m., Monday through Friday,
                                                  certificate holding district office.
                                                                                                          Federal Aviation Administration                       except Federal holidays. The AD docket
                                                     (3) An AMOC that provides an acceptable                                                                    contains this AD, the regulatory
                                                  level of safety may be used for any repair,             14 CFR Part 39                                        evaluation, any comments received, and
                                                  modification, or alteration required by this                                                                  other information. The street address for
                                                                                                          [Docket No. FAA–2016–0465; Directorate
                                                  AD if it is approved by the Boeing
                                                  Commercial Airplanes Organization
                                                                                                          Identifier 2015–NM–096–AD; Amendment                  the Docket Office (telephone: 800–647–
                                                                                                          39–18679; AD 2016–20–13]                              5527) is Docket Management Facility,
                                                  Designation Authorization (ODA) that has
                                                  been authorized by the Manager, Los Angeles             RIN 2120–AA64                                         U.S. Department of Transportation,
                                                  ACO, to make those findings. To be                                                                            Docket Operations, M–30, West
                                                  approved, the repair method, modification               Airworthiness Directives; Airbus                      Building Ground Floor, Room W12–140,
                                                  deviation, or alteration deviation must meet            Airplanes                                             1200 New Jersey Avenue SE.,
                                                  the certification basis of the airplane, and the                                                              Washington, DC 20590.
                                                  approval must specifically refer to this AD.            AGENCY:  Federal Aviation
                                                     (4) AMOCs approved previously for AD                                                                       FOR FURTHER INFORMATION CONTACT:
                                                                                                          Administration (FAA), Department of                   Vladimir Ulyanov, Aerospace Engineer,
                                                  2012–18–13 R1, Amendment 39–17429 (78
                                                                                                          Transportation (DOT).                                 International Branch, ANM–116,
                                                  FR 27020, May 9, 2013), are approved as
                                                  AMOCs for the corresponding provisions of               ACTION: Final rule.                                   Transport Airplane Directorate, FAA,
                                                  this AD.                                                                                                      1601 Lind Avenue SW., Renton, WA
                                                                                                          SUMMARY:   We are adopting a new
                                                  (m) Related Information                                                                                       98057–3356; telephone: 425–227–1138;
                                                                                                          airworthiness directive (AD) for certain
                                                    (1) For more information about this AD,                                                                     fax: 425–227–1149.
                                                                                                          Airbus Model A330–200 and –300 series
                                                  contact Payman Soltani, Aerospace Engineer,             airplanes; and Model A340–200 and                     SUPPLEMENTARY INFORMATION:
                                                  Airframe Branch, ANM–120L, FAA, Los                     –300 series airplanes. This AD was
                                                  Angeles ACO, 3960 Paramount Boulevard,                                                                        Discussion
                                                  Lakewood CA 90712–4137; telephone: 562–                 prompted by a determination that the
                                                                                                          compliance times for certain post-repair                 We issued a notice of proposed
                                                  627–5313; fax: 562–627–5210; email:                                                                           rulemaking (NPRM) to amend 14 CFR
                                                  payman.soltani@faa.gov.                                 inspections and certain allowable
                                                    (2) Service information identified in this            damage limits (ADLs) must be reduced                  part 39 by adding an AD that would
                                                  AD that is not incorporated by reference is             in order to address fatigue. This AD                  apply to certain Airbus Model A330–
                                                  available at the addresses specified in                 requires identifying any repairs and                  200 and –300 series airplanes; and
                                                  paragraphs (n)(3) and (n)(4) of this AD.                ADLs used to assess or control any                    Model A340–200 and –300 series
                                                  (n) Material Incorporated by Reference                  structural damage on certain structural               airplanes. The NPRM published in the
                                                                                                          areas, and corrective action if necessary.            Federal Register on February 18, 2016
                                                     (1) The Director of the Federal Register                                                                   (81 FR 8160) (‘‘the NPRM’’). The NPRM
                                                  approved the incorporation by reference                 We are issuing this AD to prevent
                                                  (IBR) of the service information listed in this         fatigue damage on primary structure and               was prompted by a determination that
                                                  paragraph under 5 U.S.C. 552(a) and 1 CFR               structural repairs, which could result in             the compliance times for certain post-
                                                  part 51.                                                reduced structural integrity of the                   repair inspections and certain ADLs
                                                     (2) You must use this service information            airplane.                                             must be reduced in order to address
                                                  as applicable to do the actions required by                                                                   fatigue. The NPRM proposed to require
                                                  this AD, unless the AD specifies otherwise.             DATES:  This AD is effective November                 identifying any repairs and ADLs used
                                                     (i) Boeing Alert Service Bulletin 737–               25, 2016.                                             to assess or control any structural
                                                  53A1214, Revision 5, dated January 30, 2015.              The Director of the Federal Register                damage on certain structural areas, and
                                                     (ii) Reserved.                                       approved the incorporation by reference
                                                     (3) For service information identified in
                                                                                                                                                                corrective action if necessary. We are
                                                                                                          of certain publications listed in this AD             issuing this AD to prevent fatigue
                                                  this AD, contact Boeing Commercial
                                                  Airplanes, Attention: Data & Services
                                                                                                          as of November 25, 2016.                              damage on primary structure and
                                                  Management, P.O. Box 3707, MC 2H–65,                    ADDRESSES: For service information                    structural repairs, which could result in
                                                  Seattle, WA 98124–2207; telephone 206–                  identified in this final rule, contact                reduced structural integrity of the
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                                                  544–5000, extension 1; fax 206–766–5680;                Airbus, Airworthiness Office—EIAS, 1                  airplane.
                                                  Internet https://www.myboeingfleet.com.                 Rond Point Maurice Bellonte, 31707                       The European Aviation Safety Agency
                                                     (4) You may view this service information            Blagnac Cedex, France; telephone: +33 5               (EASA), which is the Technical Agent
                                                  at the FAA, Transport Airplane Directorate,
                                                  1601 Lind Avenue SW., Renton, WA. For
                                                                                                          61 93 36 96; fax: +33 5 61 93 44 51;                  for the Member States of the European
                                                  information on the availability of this                 email: account.airworth-eas@                          Union, has issued EASA AD 2015–
                                                  material at the FAA, call 425–227–1221.                 airbus.com; Internet: http://                         0101R1, dated June 12, 2015 (referred to
                                                     (5) You may view this service information            www.airbus.com. You may view this                     after this as the Mandatory Continuing
                                                  that is incorporated by reference at the                referenced service information at the                 Airworthiness Information, or ‘‘the


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Document Created: 2016-10-21 09:58:59
Document Modified: 2016-10-21 09:58:59
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 November 25, 2016.
ContactPayman Soltani, Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; telephone: 562-627-5313; fax: 562-627-5210; email: [email protected]
FR Citation81 FR 72511 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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