81_FR_66741 81 FR 66553 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 66553 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 188 (September 28, 2016)

Page Range66553-66555
FR Document2016-23082

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 767-200, -300, and -400ER series airplanes. This proposed AD was prompted an evaluation by the design approval holder (DAH) indicating that the fuselage skin lap splices are subject to widespread fatigue damage (WFD). This proposed AD would require repetitive inspections to detect any crack in the fuselage skin at the skin lap splices. We are proposing this AD to detect and correct cracks at the fuselage skin lap splice, which can rapidly link up, possibly resulting in rapid decompression and loss of structural integrity of the airplane.

Federal Register, Volume 81 Issue 188 (Wednesday, September 28, 2016)
[Federal Register Volume 81, Number 188 (Wednesday, September 28, 2016)]
[Proposed Rules]
[Pages 66553-66555]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-23082]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9116; Directorate Identifier 2016-NM-068-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
The Boeing Company Model 767-200, -300, and -400ER series airplanes. 
This proposed AD was prompted an evaluation by the design approval 
holder (DAH) indicating that the fuselage skin lap splices are subject 
to widespread fatigue damage (WFD). This proposed AD would require 
repetitive inspections to detect any crack in the fuselage skin at the 
skin lap splices. We are proposing this AD to detect and correct cracks 
at the fuselage skin lap splice, which can rapidly link up, possibly 
resulting in rapid decompression and loss of structural integrity of 
the airplane.

DATES: We must receive comments on this proposed AD by November 14, 
2016.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, 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-2016-
9116.

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-2016-
9116; 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 proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Wayne Lockett, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office 
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6447; fax: 425-917-6590; email: [email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2016-9116; 
Directorate Identifier 2016-NM-068-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    Fatigue damage can occur locally, in small areas or structural 
design details, or globally, in widespread areas. Multiple-site damage 
(MSD) is widespread damage that occurs in a large structural element 
such as a single rivet line of a lap splice joining two large skin 
panels. Widespread damage can also occur in multiple elements such as 
adjacent frames or stringers. Multiple-site damage and multiple-

[[Page 66554]]

element damage cracks are typically too small initially to be reliably 
detected with normal inspection methods. Without intervention, these 
cracks will grow, and eventually compromise the structural integrity of 
the airplane. This condition is known as WFD. It is associated with 
general degradation of large areas of structure with similar structural 
details and stress levels. As an airplane ages, WFD will likely occur, 
and will certainly occur if the airplane is operated long enough 
without any intervention.
    The FAA's WFD final rule (75 FR 69746, November 15, 2010) became 
effective on January 14, 2011. The WFD rule requires certain actions to 
prevent structural failure due to WFD throughout the operational life 
of certain existing transport category airplanes and all of these 
airplanes that will be certificated in the future. For existing and 
future airplanes subject to the WFD rule, the rule requires that DAHs 
establish a limit of validity (LOV) of the engineering data that 
support the structural maintenance program. Operators affected by the 
WFD rule may not fly an airplane beyond its LOV, unless an extended LOV 
is approved.
    The WFD rule (75 FR 69746, November 15, 2010) does not require 
identifying and developing maintenance actions if the DAHs can show 
that such actions are not necessary to prevent WFD before the airplane 
reaches the LOV. Many LOVs, however, do depend on accomplishment of 
future maintenance actions. As stated in the WFD rule, any maintenance 
actions necessary to reach the LOV will be mandated by airworthiness 
directives through separate rulemaking actions.
    In the context of WFD, this action is necessary to enable DAHs to 
propose LOVs that allow operators the longest operational lives for 
their airplanes, and still ensure that WFD will not occur. This 
approach allows for an implementation strategy that provides 
flexibility to DAHs in determining the timing of service information 
development (with FAA approval), while providing operators with 
certainty regarding the LOV applicable to their airplanes.
    We determined that the existing Boeing 767 Maintenance Planning 
Document (MPD) Section 9 Airworthiness Limitation Instructions 
inspection program is not sufficient to preclude the occurrence of WFD 
in the fuselage skin lap splice as the airplane ages. The fuselage skin 
lap splice has multiple similar adjacent details that have the 
potential for MSD and the potential for WFD. 14 CFR 26.21 requires 
evaluation of such designs for the potential for WFD and implementation 
of the appropriate service actions to ensure that WFD is precluded 
before the airplane's LOV. We have received no reports of cracks in the 
fuselage skin lap splices. WFD cracking at the fuselage skin lap 
splice, if not corrected, could rapidly link up, possibly resulting in 
rapid decompression and loss of structural integrity of the airplane.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 767-53A0264, Revision 1, 
dated April 25, 2016. The service information describes procedures for 
repetitive inspections and repair for any crack in the fuselage skin at 
the skin lap splices. 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.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would require accomplishing the actions specified 
in the service information described previously. For information on the 
procedures and compliance times, see this service information at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
9116.

Difference Between This Proposed AD and the Service Information

    Paragraph 1.B., ``Concurrent Requirements,'' of Boeing Alert 
Service Bulletin 767-53A0264, Revision 1, dated April 25, 2016, 
identifies Boeing Alert Service Bulletin 767-53A0260 as a concurrent 
service bulletin. However, this proposed AD would not require Boeing 
Alert Service Bulletin 767-53A0260, as a concurrent service bulletin.

Costs of Compliance

    We estimate that this proposed AD affects 332 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
             Action                    Labor cost         Parts cost      Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Inspections.....................  168 work-hours x                 $0   $14,280 per          $4,740,960 per
                                   $85 per hour =                        inspection cycle.    inspection cycle.
                                   $14,280 per
                                   inspection cycle.
----------------------------------------------------------------------------------------------------------------

    The size of the area that requires repair must be determined before 
material and work-hour costs can be estimated. Additionally, materials 
for repairs are operator supplied. Therefore, we cannot provide cost 
estimates for the on-condition actions specified in this proposed AD.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII: Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701: ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the

[[Page 66555]]

distribution of power and responsibilities among the various levels of 
government.
    For the reasons discussed above, I certify this proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the 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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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):

The Boeing Company: Docket No. FAA-2016-9116; Directorate Identifier 
2016-NM-068-AD.

(a) Comments Due Date

    We must receive comments by November 14, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 767-200, -300, and -
400ER series airplanes, certificated in any category, as identified 
in Boeing Alert Service Bulletin 767-53A0264, Revision 1, dated 
April 25, 2016.

(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 (DAH) indicating that the fuselage skin lap splices are 
subject to widespread fatigue damage (WFD). We are issuing this AD 
to detect and correct cracks at the fuselage skin lap splice, which 
can rapidly link up, possibly resulting in rapid decompression and 
loss of structural integrity of the airplane.

(f) Compliance

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

(g) Repetitive Inspections and Corrective Actions

    Except as specified by paragraph (h) of this AD, at the 
applicable times specified in paragraph 1.E., ``Compliance,'' of 
Boeing Alert Service Bulletin 767-53A0264, Revision 1, dated April 
25, 2016: Do external surface high frequency eddy current (HFEC), 
internal surface HFEC, and external surface low frequency eddy 
current (LFEC) inspections, as applicable, to detect cracks in the 
fuselage skin lap splices, in accordance with the Accomplishment 
Instructions of Boeing Alert Service Bulletin 767-53A0264, Revision 
1, dated April 25, 2016. If any crack is found during any inspection 
required by this AD, before further flight, repair in accordance 
with Part 8 of the Accomplishment Instructions of Boeing Alert 
Service Bulletin 767-53A0264, Revision 1, dated April 25, 2016. 
Repeat the inspections thereafter at the times specified in 
paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin 
767-53A0264, Revision 1, dated April 25, 2016, as applicable.

(h) Service Information Exception

    Where Boeing Alert Service Bulletin 767-53A0264, Revision 1, 
dated April 25, 2016, specifies a compliance time ``after the 
original issue date of this service bulletin,'' this AD requires 
compliance within the specified compliance time after the effective 
date of this AD.

(i) Credit for Previous Actions

    This paragraph provides credit for the actions required by 
paragraph (g) of this AD, if those actions were performed before the 
effective date of this AD using Boeing Alert Service Bulletin 767-
53A0264, dated May 12, 2015.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle 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 (k)(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, Seattle 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) For service information that contains steps that are labeled 
as Required for Compliance (RC), the provisions of paragraphs 
(j)(4)(i) and (j)(4)(ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. An AMOC is required for any deviations to RC steps, 
including substeps and identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(k) Related Information

    (1) For more information about this AD, contact Wayne Lockett, 
Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle ACO, 
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6447; 
fax: 425-917-6590; email: [email protected].
    (2) 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. 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.

    Issued in Renton, Washington, on September 16, 2016.
Suzanne Masterson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-23082 Filed 9-27-16; 8:45 am]
 BILLING CODE 4910-13-P



                                                                    Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                          66553

                                                  end of the six-month period beginning                   DEPARTMENT OF TRANSPORTATION                          call 425–227–1221. It is also available
                                                  on the date of the request sent pursuant                                                                      on the Internet at http://
                                                  to paragraph (a)(2) of this section,                    Federal Aviation Administration                       www.regulations.gov by searching for
                                                  certifying that the applicant did not                                                                         and locating Docket No. FAA–2016–
                                                  receive from its appropriate State                      14 CFR Part 39                                        9116.
                                                  regulator within that six-month period                  [Docket No. FAA–2016–9116; Directorate                Examining the AD Docket
                                                  either a response as described in                       Identifier 2016–NM–068–AD]
                                                                                                                                                                   You may examine the AD docket on
                                                  paragraph (a)(3)(i) or (ii) or a response               RIN 2120–AA64                                         the Internet at http://
                                                  stating that that the applicant did not                                                                       www.regulations.gov by searching for
                                                  meet all of the eligibility requirements                Airworthiness Directives; The Boeing                  and locating Docket No. FAA–2016–
                                                  for Federal share insurance as of the                   Company Airplanes                                     9116; or in person at the Docket
                                                  date of the request sent pursuant to                                                                          Management Facility between 9 a.m.
                                                                                                          AGENCY: Federal Aviation
                                                  paragraph (a)(2) of this section.                                                                             and 5 p.m., Monday through Friday,
                                                                                                          Administration (FAA), DOT.
                                                     (b) Members canceling Federal share                                                                        except Federal holidays. The AD docket
                                                                                                          ACTION: Notice of proposed rulemaking
                                                  insurance. A Bank member that is a                                                                            contains this proposed AD, the
                                                                                                          (NPRM).
                                                  federally insured credit union and that                                                                       regulatory evaluation, any comments
                                                  subsequently cancels its Federal share                  SUMMARY:   We propose to adopt a new                  received, and other information. The
                                                  insurance may remain a member of the                    airworthiness directive (AD) for all The              street address for the Docket Office
                                                  Bank, subject to all regulatory                         Boeing Company Model 767–200, –300,                   (phone: 800–647–5527) is in the
                                                                                                          and –400ER series airplanes. This                     ADDRESSES section. Comments will be
                                                  provisions applicable to insured
                                                                                                          proposed AD was prompted an                           available in the AD docket shortly after
                                                  depository institution members,
                                                                                                          evaluation by the design approval                     receipt.
                                                  provided that the Bank has determined
                                                                                                          holder (DAH) indicating that the                      FOR FURTHER INFORMATION CONTACT:
                                                  that the institution has canceled its
                                                                                                          fuselage skin lap splices are subject to              Wayne Lockett, Aerospace Engineer,
                                                  Federal share insurance voluntarily.
                                                                                                          widespread fatigue damage (WFD). This                 Airframe Branch, ANM–120S, FAA,
                                                  Subpart E—Withdrawal, Termination,                      proposed AD would require repetitive                  Seattle Aircraft Certification Office
                                                  and Readmission                                         inspections to detect any crack in the                (ACO), 1601 Lind Avenue SW., Renton,
                                                                                                          fuselage skin at the skin lap splices. We             WA 98057–3356; phone: 425–917–6447;
                                                  ■ 7. Revise the heading of subpart E to                 are proposing this AD to detect and                   fax: 425–917–6590; email:
                                                  read as set out above.                                  correct cracks at the fuselage skin lap               wayne.lockett@faa.gov.
                                                                                                          splice, which can rapidly link up,                    SUPPLEMENTARY INFORMATION:
                                                  ■ 8. Amend § 1263.31 by revising
                                                                                                          possibly resulting in rapid                           Comments Invited
                                                  paragraphs (b) and (e) to read as follows:              decompression and loss of structural
                                                                                                          integrity of the airplane.                              We invite you to send any written
                                                  § 1263.31   Reports and examinations.
                                                                                                                                                                relevant data, views, or arguments about
                                                  *      *    *      *    *                               DATES: We must receive comments on
                                                                                                                                                                this proposal. Send your comments to
                                                                                                          this proposed AD by November 14,
                                                     (b) Agrees that reports of examination                                                                     an address listed under the ADDRESSES
                                                                                                          2016.
                                                  by local, State, or Federal agencies or                                                                       section. Include ‘‘Docket No. FAA–
                                                  institutions, or by any private entity                  ADDRESSES:   You may send comments,                   2016–9116; Directorate Identifier 2016–
                                                  providing share insurance to a member                   using the procedures found in 14 CFR                  NM–068–AD’’ at the beginning of your
                                                                                                          11.43 and 11.45, by any of the following              comments. We specifically invite
                                                  that is a non-federally-insured credit
                                                                                                          methods:                                              comments on the overall regulatory,
                                                  union or a CDFI credit union, may be                      • Federal eRulemaking Portal: Go to                 economic, environmental, and energy
                                                  furnished by such authorities or entities               http://www.regulations.gov. Follow the                aspects of this proposed AD. We will
                                                  to the Bank or FHFA upon request;                       instructions for submitting comments.                 consider all comments received by the
                                                  *      *    *      *    *                                 • Fax: 202–493–2251.                                closing date and may amend this
                                                     (e) To the extent applicable, agrees to                • Mail: U.S. Department of                          proposed AD because of those
                                                  provide to the Bank, within 20 days of                  Transportation, Docket Operations,                    comments.
                                                  filing, copies of reports of condition and              M–30, West Building Ground Floor,                       We will post all comments we
                                                  operations required to be filed with:                   Room W12–140, 1200 New Jersey                         receive, without change, to http://
                                                                                                          Avenue SE., Washington, DC 20590.                     www.regulations.gov, including any
                                                     (1) The member’s appropriate Federal                   • Hand Delivery: Deliver to Mail                    personal information you provide. We
                                                  banking agency;                                         address above between 9 a.m. and 5                    will also post a report summarizing each
                                                     (2) The member’s appropriate State                   p.m., Monday through Friday, except                   substantive verbal contact we receive
                                                  regulator; or                                           Federal holidays.                                     about this proposed AD.
                                                                                                            For service information identified in
                                                     (3) Any private entity providing share               this NPRM, contact Boeing Commercial                  Discussion
                                                  insurance to a member that is a non-                    Airplanes, Attention: Data & Services                    Fatigue damage can occur locally, in
                                                  federally-insured credit union or a CDFI                Management, P.O. Box 3707, MC 2H–65,                  small areas or structural design details,
                                                  credit union.                                           Seattle, WA 98124–2207; telephone:                    or globally, in widespread areas.
sradovich on DSK3GMQ082PROD with PROPOSALS




                                                    Dated: September 22, 2016.                            206–544–5000, extension 1; fax: 206–                  Multiple-site damage (MSD) is
                                                  Melvin L. Watt,                                         766–5680; Internet: https://                          widespread damage that occurs in a
                                                  Director, Federal Housing Finance Agency.
                                                                                                          www.myboeingfleet.com. You may view                   large structural element such as a single
                                                                                                          this referenced service information at                rivet line of a lap splice joining two
                                                  [FR Doc. 2016–23289 Filed 9–27–16; 8:45 am]
                                                                                                          the FAA, Transport Airplane                           large skin panels. Widespread damage
                                                  BILLING CODE 8070–01–P                                  Directorate, 1601 Lind Avenue SW.,                    can also occur in multiple elements
                                                                                                          Renton, WA. For information on the                    such as adjacent frames or stringers.
                                                                                                          availability of this material at the FAA,             Multiple-site damage and multiple-


                                             VerDate Sep<11>2014   17:27 Sep 27, 2016   Jkt 238001   PO 00000   Frm 00009   Fmt 4702   Sfmt 4702   E:\FR\FM\28SEP1.SGM   28SEP1


                                                  66554                 Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                  element damage cracks are typically too                           In the context of WFD, this action is                  splices. This service information is
                                                  small initially to be reliably detected                        necessary to enable DAHs to propose                       reasonably available because the
                                                  with normal inspection methods.                                LOVs that allow operators the longest                     interested parties have access to it
                                                  Without intervention, these cracks will                        operational lives for their airplanes, and                through their normal course of business
                                                  grow, and eventually compromise the                            still ensure that WFD will not occur.                     or by the means identified in the
                                                  structural integrity of the airplane. This                     This approach allows for an                               ADDRESSES section.
                                                  condition is known as WFD. It is                               implementation strategy that provides
                                                                                                                 flexibility to DAHs in determining the                    FAA’s Determination
                                                  associated with general degradation of
                                                  large areas of structure with similar                          timing of service information                               We are proposing this AD because we
                                                  structural details and stress levels. As                       development (with FAA approval),                          evaluated all the relevant information
                                                  an airplane ages, WFD will likely occur,                       while providing operators with certainty                  and determined the unsafe condition
                                                  and will certainly occur if the airplane                       regarding the LOV applicable to their                     described previously is likely to exist or
                                                  is operated long enough without any                            airplanes.                                                develop in other products of the same
                                                  intervention.                                                     We determined that the existing                        type design.
                                                     The FAA’s WFD final rule (75 FR                             Boeing 767 Maintenance Planning
                                                                                                                 Document (MPD) Section 9                                  Proposed AD Requirements
                                                  69746, November 15, 2010) became
                                                  effective on January 14, 2011. The WFD                         Airworthiness Limitation Instructions                       This proposed AD would require
                                                  rule requires certain actions to prevent                       inspection program is not sufficient to                   accomplishing the actions specified in
                                                                                                                 preclude the occurrence of WFD in the
                                                  structural failure due to WFD                                                                                            the service information described
                                                                                                                 fuselage skin lap splice as the airplane
                                                  throughout the operational life of                                                                                       previously. For information on the
                                                                                                                 ages. The fuselage skin lap splice has
                                                  certain existing transport category                                                                                      procedures and compliance times, see
                                                                                                                 multiple similar adjacent details that
                                                  airplanes and all of these airplanes that                                                                                this service information at http://
                                                                                                                 have the potential for MSD and the
                                                  will be certificated in the future. For                                                                                  www.regulations.gov by searching for
                                                                                                                 potential for WFD. 14 CFR 26.21
                                                  existing and future airplanes subject to                                                                                 and locating Docket No. FAA–2016–
                                                                                                                 requires evaluation of such designs for
                                                  the WFD rule, the rule requires that                                                                                     9116.
                                                                                                                 the potential for WFD and
                                                  DAHs establish a limit of validity (LOV)
                                                                                                                 implementation of the appropriate                         Difference Between This Proposed AD
                                                  of the engineering data that support the
                                                                                                                 service actions to ensure that WFD is                     and the Service Information
                                                  structural maintenance program.                                precluded before the airplane’s LOV.
                                                  Operators affected by the WFD rule may                         We have received no reports of cracks                       Paragraph 1.B., ‘‘Concurrent
                                                  not fly an airplane beyond its LOV,                            in the fuselage skin lap splices. WFD                     Requirements,’’ of Boeing Alert Service
                                                  unless an extended LOV is approved.                            cracking at the fuselage skin lap splice,                 Bulletin 767–53A0264, Revision 1,
                                                     The WFD rule (75 FR 69746,                                  if not corrected, could rapidly link up,                  dated April 25, 2016, identifies Boeing
                                                  November 15, 2010) does not require                            possibly resulting in rapid                               Alert Service Bulletin 767–53A0260 as
                                                  identifying and developing maintenance                         decompression and loss of structural                      a concurrent service bulletin. However,
                                                  actions if the DAHs can show that such                         integrity of the airplane.                                this proposed AD would not require
                                                  actions are not necessary to prevent                                                                                     Boeing Alert Service Bulletin 767–
                                                  WFD before the airplane reaches the                            Related Service Information Under 1                       53A0260, as a concurrent service
                                                  LOV. Many LOVs, however, do depend                             CFR Part 51                                               bulletin.
                                                  on accomplishment of future                                      We reviewed Boeing Alert Service                        Costs of Compliance
                                                  maintenance actions. As stated in the                          Bulletin 767–53A0264, Revision 1,
                                                  WFD rule, any maintenance actions                              dated April 25, 2016. The service                            We estimate that this proposed AD
                                                  necessary to reach the LOV will be                             information describes procedures for                      affects 332 airplanes of U.S. registry. We
                                                  mandated by airworthiness directives                           repetitive inspections and repair for any                 estimate the following costs to comply
                                                  through separate rulemaking actions.                           crack in the fuselage skin at the skin lap                with this proposed AD:

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

                                                  Inspections .............................   168 work-hours × $85 per                     $0               $14,280 per inspection cycle    $4,740,960 per inspection
                                                                                                hour = $14,280 per inspec-                                                                    cycle.
                                                                                                tion cycle.



                                                    The size of the area that requires                           the FAA Administrator. Subtitle VII:                      is within the scope of that authority
                                                  repair must be determined before                               Aviation Programs, describes in more                      because it addresses an unsafe condition
                                                  material and work-hour costs can be                            detail the scope of the Agency’s                          that is likely to exist or develop on
                                                  estimated. Additionally, materials for                         authority.                                                products identified in this rulemaking
                                                  repairs are operator supplied. Therefore,                         We are issuing this rulemaking under                   action.
                                                  we cannot provide cost estimates for the                       the authority described in Subtitle VII,
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                                                  on-condition actions specified in this                                                                                   Regulatory Findings
                                                                                                                 Part A, Subpart III, Section 44701:
                                                  proposed AD.                                                   ‘‘General requirements.’’ Under that                        We determined that this proposed AD
                                                  Authority for This Rulemaking                                  section, Congress charges the FAA with                    would not have federalism implications
                                                                                                                 promoting safe flight of civil aircraft in                under Executive Order 13132. This
                                                    Title 49 of the United States Code                           air commerce by prescribing regulations                   proposed AD would not have a
                                                  specifies the FAA’s authority to issue                         for practices, methods, and procedures                    substantial direct effect on the States, on
                                                  rules on aviation safety. Subtitle I,                          the Administrator finds necessary for                     the relationship between the national
                                                  section 106, describes the authority of                        safety in air commerce. This regulation                   Government and the States, or on the


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                                                                    Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                                66555

                                                  distribution of power and                               decompression and loss of structural                  been authorized by the Manager, Seattle
                                                  responsibilities among the various                      integrity of the airplane.                            ACO, to make those findings. To be
                                                  levels of government.                                                                                         approved, the repair method, modification
                                                                                                          (f) Compliance                                        deviation, or alteration deviation must meet
                                                    For the reasons discussed above, I                       Comply with this AD within the                     the certification basis of the airplane, and the
                                                  certify this proposed regulation:                       compliance times specified, unless already            approval must specifically refer to this AD.
                                                    (1) Is not a ‘‘significant regulatory                 done.                                                    (4) For service information that contains
                                                  action’’ under Executive Order 12866,                                                                         steps that are labeled as Required for
                                                                                                          (g) Repetitive Inspections and Corrective
                                                    (2) Is not a ‘‘significant rule’’ under                                                                     Compliance (RC), the provisions of
                                                                                                          Actions
                                                  the DOT Regulatory Policies and                                                                               paragraphs (j)(4)(i) and (j)(4)(ii) of this AD
                                                  Procedures (44 FR 11034, February 26,                      Except as specified by paragraph (h) of this       apply.
                                                                                                          AD, at the applicable times specified in                 (i) The steps labeled as RC, including
                                                  1979),                                                  paragraph 1.E., ‘‘Compliance,’’ of Boeing
                                                    (3) Will not affect intrastate aviation                                                                     substeps under an RC step and any figures
                                                                                                          Alert Service Bulletin 767–53A0264,                   identified in an RC step, must be done to
                                                  in Alaska, and                                          Revision 1, dated April 25, 2016: Do external         comply with the AD. An AMOC is required
                                                    (4) Will not have a significant                       surface high frequency eddy current (HFEC),           for any deviations to RC steps, including
                                                  economic impact, positive or negative,                  internal surface HFEC, and external surface           substeps and identified figures.
                                                  on a substantial number of small entities               low frequency eddy current (LFEC)                        (ii) Steps not labeled as RC may be
                                                  under the criteria of the Regulatory                    inspections, as applicable, to detect cracks in       deviated from using accepted methods in
                                                  Flexibility Act.                                        the fuselage skin lap splices, in accordance          accordance with the operator’s maintenance
                                                                                                          with the Accomplishment Instructions of               or inspection program without obtaining
                                                  List of Subjects in 14 CFR Part 39                      Boeing Alert Service Bulletin 767–53A0264,            approval of an AMOC, provided the RC steps,
                                                                                                          Revision 1, dated April 25, 2016. If any crack        including substeps and identified figures, can
                                                    Air transportation, Aircraft, Aviation                is found during any inspection required by
                                                  safety, Incorporation by reference,                                                                           still be done as specified, and the airplane
                                                                                                          this AD, before further flight, repair in             can be put back in an airworthy condition.
                                                  Safety.                                                 accordance with Part 8 of the
                                                                                                          Accomplishment Instructions of Boeing Alert           (k) Related Information
                                                  The Proposed Amendment                                  Service Bulletin 767–53A0264, Revision 1,               (1) For more information about this AD,
                                                    Accordingly, under the authority                      dated April 25, 2016. Repeat the inspections          contact Wayne Lockett, Aerospace Engineer,
                                                  delegated to me by the Administrator,                   thereafter at the times specified in paragraph        Airframe Branch, ANM–120S, FAA, Seattle
                                                  the FAA proposes to amend 14 CFR part                   1.E., ‘‘Compliance,’’ of Boeing Alert Service         ACO, 1601 Lind Avenue SW., Renton, WA
                                                                                                          Bulletin 767–53A0264, Revision 1, dated               98057–3356; phone: 425–917–6447; fax: 425–
                                                  39 as follows:
                                                                                                          April 25, 2016, as applicable.                        917–6590; email: wayne.lockett@faa.gov.
                                                  PART 39—AIRWORTHINESS                                   (h) Service Information Exception                       (2) For service information identified in
                                                  DIRECTIVES                                                                                                    this AD, contact Boeing Commercial
                                                                                                            Where Boeing Alert Service Bulletin 767–            Airplanes, Attention: Data & Services
                                                                                                          53A0264, Revision 1, dated April 25, 2016,            Management, P.O. Box 3707, MC 2H–65,
                                                  ■ 1. The authority citation for part 39                 specifies a compliance time ‘‘after the
                                                  continues to read as follows:                                                                                 Seattle, WA 98124–2207; telephone: 206–
                                                                                                          original issue date of this service bulletin,’’
                                                                                                                                                                544–5000, extension 1; fax: 206–766–5680;
                                                      Authority: 49 U.S.C. 106(g), 40113, 44701.          this AD requires compliance within the
                                                                                                                                                                Internet: https://www.myboeingfleet.com.
                                                                                                          specified compliance time after the effective
                                                                                                                                                                You may view this referenced service
                                                  § 39.13   [Amended]                                     date of this AD.
                                                                                                                                                                information at the FAA, Transport Airplane
                                                  ■ 2. The FAA amends § 39.13 by adding                   (i) Credit for Previous Actions                       Directorate, 1601 Lind Avenue SW., Renton,
                                                  the following new airworthiness                            This paragraph provides credit for the             WA. For information on the availability of
                                                  directive (AD):                                         actions required by paragraph (g) of this AD,         this material at the FAA, call 425–227–1221.
                                                  The Boeing Company: Docket No. FAA–                     if those actions were performed before the              Issued in Renton, Washington, on
                                                      2016–9116; Directorate Identifier 2016–             effective date of this AD using Boeing Alert          September 16, 2016.
                                                      NM–068–AD.                                          Service Bulletin 767–53A0264, dated May               Suzanne Masterson,
                                                                                                          12, 2015.
                                                  (a) Comments Due Date                                                                                         Acting Manager, Transport Airplane
                                                                                                          (j) Alternative Methods of Compliance                 Directorate, Aircraft Certification Service.
                                                    We must receive comments by November                  (AMOCs)
                                                  14, 2016.                                                                                                     [FR Doc. 2016–23082 Filed 9–27–16; 8:45 am]
                                                                                                             (1) The Manager, Seattle Aircraft                  BILLING CODE 4910–13–P
                                                  (b) Affected ADs                                        Certification Office (ACO), FAA, has the
                                                    None.                                                 authority to approve AMOCs for this AD, if
                                                                                                          requested using the procedures found in 14
                                                  (c) Applicability                                       CFR 39.19. In accordance with 14 CFR 39.19,           DEPARTMENT OF ENERGY
                                                     This AD applies to The Boeing Company                send your request to your principal inspector
                                                  Model 767–200, –300, and –400ER series                  or local Flight Standards District Office, as         Federal Energy Regulatory
                                                  airplanes, certificated in any category, as             appropriate. If sending information directly          Commission
                                                  identified in Boeing Alert Service Bulletin             to the manager of the ACO, send it to the
                                                  767–53A0264, Revision 1, dated April 25,                attention of the person identified in                 18 CFR Part 40
                                                  2016.                                                   paragraph (k)(1) of this AD. Information may
                                                                                                          be emailed to: 9-ANM-Seattle-ACO-AMOC-                [Docket No. RM16–13–000]
                                                  (d) Subject                                             Requests@faa.gov.
                                                    Air Transport Association (ATA) of                       (2) Before using any approved AMOC,                Balancing Authority Control,
                                                  America Code 53, Fuselage.                              notify your appropriate principal inspector,          Inadvertent Interchange, and Facility
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                                                                                                          or lacking a principal inspector, the manager         Interconnection Reliability Standards
                                                  (e) Unsafe Condition                                    of the local flight standards district office/
                                                     This AD was prompted by an evaluation by             certificate holding district office.                  AGENCY: Federal Energy Regulatory
                                                  the design approval holder (DAH) indicating                (3) An AMOC that provides an acceptable            Commission.
                                                  that the fuselage skin lap splices are subject          level of safety may be used for any repair,           ACTION: Notice of proposed rulemaking.
                                                  to widespread fatigue damage (WFD). We are              modification, or alteration required by this
                                                  issuing this AD to detect and correct cracks            AD if it is approved by the Boeing                    SUMMARY:  The Commission proposes to
                                                  at the fuselage skin lap splice, which can              Commercial Airplanes Organization                     approve Reliability Standards BAL–
                                                  rapidly link up, possibly resulting in rapid            Designation Authorization (ODA) that has              005–1 (Balancing Authority Control)


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Document Created: 2016-09-28 01:08:18
Document Modified: 2016-09-28 01:08:18
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by November 14, 2016.
ContactWayne Lockett, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6447; fax: 425-917-6590; email: [email protected]
FR Citation81 FR 66553 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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