81_FR_9404 81 FR 9367 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 9367 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 37 (February 25, 2016)

Page Range9367-9370
FR Document2016-03698

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 767-200, -300, and -400ER series airplanes. This proposed AD was prompted by an evaluation by the design approval holder (DAH) indicating that the skin lap splice is subject to widespread fatigue damage (WFD). This proposed AD would require repetitive external detailed and surface high frequency eddy current (HFEC) inspections of the outer skin for cracking around fastener heads common to the inboard fastener row of the skin lap splice. We are proposing this AD to detect and correct fatigue cracking of the skin lap splice, which, if not detected, could grow and result in possible rapid decompression and reduced structural integrity of the airplane.

Federal Register, Volume 81 Issue 37 (Thursday, February 25, 2016)
[Federal Register Volume 81, Number 37 (Thursday, February 25, 2016)]
[Proposed Rules]
[Pages 9367-9370]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-03698]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-3703; Directorate Identifier 2015-NM-115-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

[[Page 9368]]


ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain The Boeing Company Model 767-200, -300, and -400ER series 
airplanes. This proposed AD was prompted by an evaluation by the design 
approval holder (DAH) indicating that the skin lap splice is subject to 
widespread fatigue damage (WFD). This proposed AD would require 
repetitive external detailed and surface high frequency eddy current 
(HFEC) inspections of the outer skin for cracking around fastener heads 
common to the inboard fastener row of the skin lap splice. We are 
proposing this AD to detect and correct fatigue cracking of the skin 
lap splice, which, if not detected, could grow and result in possible 
rapid decompression and reduced structural integrity of the airplane.

DATES: We must receive comments on this proposed AD by April 11, 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-2016-3703.

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-
3703; 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-2016-3703; 
Directorate Identifier 2015-NM-115-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

    Structural fatigue damage is progressive. It begins as minute 
cracks, and those cracks grow under the action of repeated stresses. 
This can happen because of normal operational conditions and design 
attributes, or because of isolated situations or incidents such as 
material defects, poor fabrication quality, or corrosion pits, dings, 
or scratches. Fatigue damage can occur locally, in small areas or 
structural design details, or globally. Global fatigue damage is 
general degradation of large areas of structure with similar structural 
details and stress levels. Multiple-site damage is global damage that 
occurs in a large structural element such as a single rivet line of a 
lap splice joining two large skin panels. Global damage can also occur 
in multiple elements such as adjacent frames or stringers. Multiple-
site-damage and multiple-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, in a condition known as WFD. 
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 ADs 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 have received an evaluation by the DAH indicating that the skin 
lap splice is subject to WFD. As a result of WFD analysis, the stringer 
S-2R skin lap splice from station (STA) 368 to STA 434 requires 
additional supplemental inspection beyond the inspections specified in 
the Boeing Model 767 airplane maintenance planning document. This 
condition, if not corrected, could result in cracking of the skin lap 
splice, which could grow and result in possible rapid

[[Page 9369]]

decompression and reduced structural integrity of the airplane.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 767-53A0260, dated August 
26, 2014. The service information describes procedures for a detailed 
inspection and a surface HFEC inspection at section 41, stringer S-2R 
skin lap splice from STA 368 to STA 434, for any cracking, and repair. 
This service information is reasonably available because the interested 
parties have access to it through their normal course of business or by 
the means identified in the ADDRESSES section.

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, except as discussed 
under ``Differences Between this Proposed AD and the Service 
Information.'' 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-2016-3703.''
    The phrase ``corrective actions'' is used in this proposed AD. 
``Corrective actions'' are actions that correct or address any 
condition found. Corrective actions in an AD could include, for 
example, repairs.

Costs of Compliance

    We estimate that this proposed AD affects 356 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......................  3 work-hours x $85             $0   $255 per inspection   $90,780 per
                                    per hour = $255 per                 cycle.                inspection cycle.
                                    inspection cycle.
----------------------------------------------------------------------------------------------------------------

    We have received no definitive data that would enable us to 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 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-2016-3703; Directorate Identifier 
2015-NM-115-AD.

(a) Comments Due Date

    We must receive comments by April 11, 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 767-53A0260, dated August 26, 2014.

(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 skin lap splice is subject to widespread 
fatigue damage. We are issuing this AD to detect and correct fatigue 
cracking of this skin lap splice, which, if not detected, could grow 
and result in possible rapid decompression and reduced structural 
integrity of the airplane.

(f) Compliance

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

(g) Inspection and Corrective Actions

    At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 767-53A0260, dated 
August 26, 2014, except as required by paragraph (h) of this AD: Do 
a detailed inspection and a surface high frequency eddy current 
(HFEC) inspection at section 41, stringer S-2R skin lap splice from 
body station (STA) 368 to STA 434, for any cracking, and do all 
applicable corrective actions, in accordance with the Accomplishment 
Instructions of Boeing Alert

[[Page 9370]]

Service Bulletin 767-53A0260, dated August 26, 2014. Do all 
applicable corrective actions before further flight. Repeat the 
inspections thereafter at the applicable times specified in 
paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin 
767-53A0260, dated August 26, 2014. If any existing external repair 
is found in the inspection area, then the inspections in Part 1 of 
the Accomplishment Instructions of Boeing Alert Service Bulletin 
767-53A0260, dated August 26, 2014, are not required in the area 
hidden by the repair, provided that the repair was previously 
approved by the Manager, Seattle Aircraft Certification Office 
(ACO), or by the Authorized Representative of the Boeing Commercial 
Airplanes Organization Designation Authorization (ODA), or installed 
as specified in Part 2 of the Accomplishment Instructions of Boeing 
Alert Service Bulletin 767-53A0260, dated August 26, 2014. 
Inspections in Part 1 of the Accomplishment Instructions of Boeing 
Alert Service Bulletin 767-53A0260, dated August 26, 2014, remain 
applicable in areas not hidden by the repair.

(h) Exception to the Service Information

    Where Boeing Alert Service Bulletin 767-53A0260, dated August 
26, 2014, 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) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle 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 
(i) of this AD. Information may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes ODA that has 
been authorized by the Manager, Seattle ACO, to make those findings. 
To be approved, the repair method, modification deviation, or 
alteration deviation must meet the certification basis of the 
airplane, and the approval must specifically refer to this AD.
    (4) Except as required by paragraph (h) of this AD: For service 
information that contains steps that are labeled as Required for 
Compliance (RC), the provisions of paragraphs (i)(4)(i) and 
(i)(4)(ii) 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.

(j) 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 February 15, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-03698 Filed 2-24-16; 8:45 am]
 BILLING CODE 4910-13-P



                                                                       Federal Register / Vol. 81, No. 37 / Thursday, February 25, 2016 / Proposed Rules                                                9367

                                                   Issued in Renton, Washington, on February             and 5 p.m., Monday through Friday,                    have the failure mode (failure of the
                                                 16, 2016.                                               except Federal holidays. The AD docket                hydraulic actuator rod end or attach
                                                 Dionne Palermo,                                         contains this AD action, the NPRM (76                 fitting due to severe wear-out) addressed
                                                 Acting Manager, Transport Airplane                      FR 15864, March 22, 2011), the                        in the NPRM. Based on field reports and
                                                 Directorate, Aircraft Certification Service.            regulatory evaluation, any comments                   design review, the manufacturer found
                                                 [FR Doc. 2016–03996 Filed 2–24–16; 8:45 am]             received, and other information. The                  that certain hydraulic actuators do not
                                                 BILLING CODE 4910–13–P                                  address for the Docket Office (telephone              have this failure mode. Based on this
                                                                                                         800–647–5527) is the Docket                           new manufacturer finding, a new safety
                                                                                                         Management Facility, U.S. Department                  analysis was conducted and we
                                                 DEPARTMENT OF TRANSPORTATION                            of Transportation, Docket Operations,                 determined that this issue is no longer
                                                                                                         M–30, West Building Ground Floor,                     a safety concern.
                                                 Federal Aviation Administration                         Room W12–140, 1200 New Jersey
                                                                                                                                                               FAA’s Conclusions
                                                                                                         Avenue SE., Washington, DC 20590.
                                                 14 CFR Part 39                                                                                                  Upon further consideration, we have
                                                                                                         FOR FURTHER INFORMATION CONTACT: Tak
                                                 [Docket No. FAA–2011–0254; Directorate                  Kobayashi, Aerospace Engineer,                        determined that the safety concern
                                                 Identifier 2010–NM–180–AD]                              Propulsion Branch, ANM–140S, FAA,                     identified in the NPRM does not affect
                                                                                                         Seattle Aircraft Certification Office,                The Boeing Company Model 737–600,
                                                 RIN 2120–AA64                                                                                                 –700, –700C, –800, –900, and –900ER
                                                                                                         1601 Lind Avenue SW., Renton, WA
                                                 Airworthiness Directives; The Boeing                    98057–3356; phone: 425–917–6499; fax:                 series airplanes identified in the NPRM.
                                                 Company Airplanes                                       425–917–6590; email:                                  Accordingly, the NPRM is withdrawn.
                                                                                                         Takahisa.Kobayashi@faa.gov.                             Withdrawal of the NPRM does not
                                                 AGENCY:  Federal Aviation                                                                                     preclude the FAA from issuing another
                                                                                                         SUPPLEMENTARY INFORMATION:
                                                 Administration (FAA), Department of                                                                           related action or commit the FAA to any
                                                 Transportation (DOT).                                   Discussion                                            course of action in the future.
                                                 ACTION: Proposed rule; withdrawal.                         We proposed to amend part 39 of the                Regulatory Impact
                                                                                                         Federal Aviation Regulations (14 CFR
                                                 SUMMARY:    The FAA withdraws a notice                                                                           Since this action only withdraws an
                                                                                                         part 39) with a notice of proposed
                                                 of proposed rulemaking (NPRM) that                                                                            NPRM, it is neither a proposed nor a
                                                                                                         rulemaking (NPRM) for a new AD for
                                                 proposed a new airworthiness directive                                                                        final rule and therefore is not covered
                                                                                                         certain The Boeing Company Model
                                                 (AD), which would have applied to                                                                             under Executive Order 12866, the
                                                                                                         737–600, –700, –700C, –800, –900, and
                                                 certain The Boeing Company Model                                                                              Regulatory Flexibility Act, or DOT
                                                                                                         –900ER series airplanes. The NPRM
                                                 737–600, –700, –700C, –800, –900, and                                                                         Regulatory Policies and Procedures (44
                                                                                                         published in the Federal Register on
                                                 –900ER series airplanes. For certain                                                                          FR 11034, February 26, 1979).
                                                                                                         March 22, 2011 (76 FR 15864) (‘‘the
                                                 airplanes, the NPRM would have
                                                                                                         NPRM’’). For certain airplanes, the                   List of Subjects in 14 CFR Part 39
                                                 required a one-time inspection for
                                                                                                         NPRM would have required a one-time                     Air transportation, Aircraft, Aviation
                                                 damage of the hydraulic actuator rod
                                                                                                         inspection for damage of the hydraulic                safety, Incorporation by reference,
                                                 ends and actuator attach fittings on the
                                                                                                         actuator rod ends and actuator attach                 Safety.
                                                 thrust reversers, and repair or
                                                                                                         fittings on the thrust reversers, and
                                                 replacement if necessary. For all                                                                             The Withdrawal
                                                                                                         repair or replacement if necessary. For
                                                 airplanes, the NPRM would have
                                                                                                         all airplanes, the NPRM would have                      Accordingly, we withdraw the NPRM,
                                                 required repetitive inspections for
                                                                                                         required repetitive inspections for                   Docket No. FAA–2011–0254, Directorate
                                                 damage of the hydraulic actuator rod
                                                                                                         damage of the hydraulic actuator rod                  Identifier 2010–NM–180–AD, which
                                                 ends, attach bolts, and nuts; repetitive
                                                                                                         ends, attach bolts, and nuts; repetitive              was published in the Federal Register
                                                 inspections for damage of fitting
                                                                                                         inspections for damage of fitting                     on March 22, 2011 (76 FR 15864).
                                                 assemblies, wear spacers, and actuator
                                                                                                         assemblies, wear spacers, and actuator
                                                 attach fittings on the thrust reverser;                                                                         Issued in Renton, Washington, on February
                                                                                                         attach fittings on the thrust reverser;
                                                 repetitive measurements of the wear                                                                           15, 2016.
                                                                                                         repetitive measurements of the wear
                                                 spacer; and corrective actions if                                                                             Michael Kaszycki,
                                                                                                         spacer; and corrective actions if
                                                 necessary. Since the NPRM was issued,                                                                         Acting Manager, Transport Airplane
                                                                                                         necessary.
                                                 the manufacturer notified us that an                                                                          Directorate, Aircraft Certification Service.
                                                                                                            The NPRM was prompted by reports
                                                 assumption regarding a failure mode of                                                                        [FR Doc. 2016–03693 Filed 2–24–16; 8:45 am]
                                                                                                         of in-service damage of the attachment
                                                 the rod ends or attachment fittings for
                                                                                                         fittings for the thrust reverser actuator.            BILLING CODE 4910–13–P
                                                 the thrust reverser actuator used in the
                                                                                                         The proposed actions were intended to
                                                 original safety assessment was incorrect.
                                                                                                         detect and correct such damage, which
                                                 A new safety analysis was conducted                                                                           DEPARTMENT OF TRANSPORTATION
                                                                                                         could result in actuator attach fitting
                                                 and we determined that this issue is no
                                                                                                         failure, loss of the thrust reverser auto             Federal Aviation Administration
                                                 longer a safety concern. Accordingly,
                                                                                                         restow function, and consequent loss of
                                                 the NPRM is withdrawn.
                                                                                                         control of the airplane.                              14 CFR Part 39
                                                 DATES: As of February 25, 2016, the
                                                 proposed rule, which was published in                   Actions Since NPRM Was Issued
                                                                                                                                                               [Docket No. FAA–2016–3703; Directorate
rmajette on DSK2TPTVN1PROD with PROPOSALS




                                                 the Federal Register on March 22, 2011                    Since we issued the NPRM, the                       Identifier 2015–NM–115–AD]
                                                 (76 FR 15864), is withdrawn.                            manufacturer has notified us that an
                                                                                                         assumption regarding a failure mode of                RIN 2120–AA64
                                                 ADDRESSES: You may examine the AD
                                                 docket on the Internet at http://                       the attachment fittings for the thrust                Airworthiness Directives; The Boeing
                                                 www.regulations.gov by searching for                    reverser actuator used in the original                Company Airplanes
                                                 and locating Docket No. FAA–2011–                       safety assessment was incorrect. It was
                                                 0254; or in person at the Docket                        originally assumed that all hydraulic                 AGENCY:Federal Aviation
                                                 Management Facility between 9 a.m.                      actuators attached to the thrust reverser             Administration (FAA), DOT.


                                            VerDate Sep<11>2014   13:27 Feb 24, 2016   Jkt 238001   PO 00000   Frm 00005   Fmt 4702   Sfmt 4702   E:\FR\FM\25FEP1.SGM   25FEP1


                                                 9368                  Federal Register / Vol. 81, No. 37 / Thursday, February 25, 2016 / Proposed Rules

                                                       Notice of proposed rulemaking
                                                 ACTION:                                                 Management Facility between 9 a.m.                    damage and multiple-element-damage
                                                 (NPRM).                                                 and 5 p.m., Monday through Friday,                    cracks are typically too small initially to
                                                                                                         except Federal holidays. The AD docket                be reliably detected with normal
                                                 SUMMARY:   We propose to adopt a new                    contains this proposed AD, the                        inspection methods. Without
                                                 airworthiness directive (AD) for certain                regulatory evaluation, any comments                   intervention, these cracks will grow,
                                                 The Boeing Company Model 767–200,                       received, and other information. The                  and eventually compromise the
                                                 –300, and –400ER series airplanes. This                 street address for the Docket Office                  structural integrity of the airplane, in a
                                                 proposed AD was prompted by an                          (phone: 800–647–5527) is in the                       condition known as WFD. As an
                                                 evaluation by the design approval                       ADDRESSES section. Comments will be                   airplane ages, WFD will likely occur,
                                                 holder (DAH) indicating that the skin                   available in the AD docket shortly after              and will certainly occur if the airplane
                                                 lap splice is subject to widespread                     receipt.                                              is operated long enough without any
                                                 fatigue damage (WFD). This proposed                                                                           intervention.
                                                                                                         FOR FURTHER INFORMATION CONTACT:
                                                 AD would require repetitive external                                                                             The FAA’s WFD final rule (75 FR
                                                                                                         Wayne Lockett, Aerospace Engineer,
                                                 detailed and surface high frequency                                                                           69746, November 15, 2010) became
                                                                                                         Airframe Branch, ANM–120S, FAA,
                                                 eddy current (HFEC) inspections of the                                                                        effective on January 14, 2011. The WFD
                                                                                                         Seattle Aircraft Certification Office
                                                 outer skin for cracking around fastener                                                                       rule requires certain actions to prevent
                                                                                                         (ACO), 1601 Lind Avenue SW., Renton,
                                                 heads common to the inboard fastener                                                                          structural failure due to WFD
                                                                                                         WA 98057–3356; phone: 425–917–6447;
                                                 row of the skin lap splice. We are                                                                            throughout the operational life of
                                                                                                         fax: 425–917–6590; email:
                                                 proposing this AD to detect and correct                                                                       certain existing transport category
                                                                                                         wayne.lockett@faa.gov.
                                                 fatigue cracking of the skin lap splice,                                                                      airplanes and all of these airplanes that
                                                 which, if not detected, could grow and                  SUPPLEMENTARY INFORMATION:
                                                                                                                                                               will be certificated in the future. For
                                                 result in possible rapid decompression                  Comments Invited                                      existing and future airplanes subject to
                                                 and reduced structural integrity of the                                                                       the WFD rule, the rule requires that
                                                 airplane.                                                 We invite you to send any written
                                                                                                         relevant data, views, or arguments about              DAHs establish a limit of validity (LOV)
                                                 DATES:  We must receive comments on                     this proposal. Send your comments to                  of the engineering data that support the
                                                 this proposed AD by April 11, 2016.                     an address listed under the ADDRESSES                 structural maintenance program.
                                                 ADDRESSES: You may send comments,                       section. Include ‘‘Docket No. FAA–                    Operators affected by the WFD rule may
                                                 using the procedures found in 14 CFR                    2016–3703; Directorate Identifier 2015–               not fly an airplane beyond its LOV,
                                                 11.43 and 11.45, by any of the following                NM–115–AD’’ at the beginning of your                  unless an extended LOV is approved.
                                                 methods:                                                comments. We specifically invite                         The WFD rule (75 FR 69746,
                                                   • Federal eRulemaking Portal: Go to                   comments on the overall regulatory,                   November 15, 2010) does not require
                                                 http://www.regulations.gov. Follow the                  economic, environmental, and energy                   identifying and developing maintenance
                                                 instructions for submitting comments.                   aspects of this proposed AD. We will                  actions if the DAHs can show that such
                                                   • Fax: 202–493–2251.                                  consider all comments received by the                 actions are not necessary to prevent
                                                   • Mail: U.S. Department of                            closing date and may amend this                       WFD before the airplane reaches the
                                                 Transportation, Docket Operations, M–                   proposed AD because of those                          LOV. Many LOVs, however, do depend
                                                 30, West Building Ground Floor, Room                    comments.                                             on accomplishment of future
                                                 W12–140, 1200 New Jersey Avenue SE.,                      We will post all comments we                        maintenance actions. As stated in the
                                                 Washington, DC 20590.                                   receive, without change, to http://                   WFD rule, any maintenance actions
                                                   • Hand Delivery: Deliver to Mail                      www.regulations.gov, including any                    necessary to reach the LOV will be
                                                 address above between 9 a.m. and 5                      personal information you provide. We                  mandated by ADs through separate
                                                 p.m., Monday through Friday, except                     will also post a report summarizing each              rulemaking actions.
                                                 Federal holidays.                                       substantive verbal contact we receive                    In the context of WFD, this action is
                                                   For service information identified in                 about this proposed AD.                               necessary to enable DAHs to propose
                                                 this NPRM, contact Boeing Commercial                                                                          LOVs that allow operators the longest
                                                                                                         Discussion                                            operational lives for their airplanes, and
                                                 Airplanes, Attention: Data & Services
                                                 Management, P.O. Box 3707, MC 2H–65,                       Structural fatigue damage is                       still ensure that WFD will not occur.
                                                 Seattle, WA 98124–2207; telephone:                      progressive. It begins as minute cracks,              This approach allows for an
                                                 206–544–5000, extension 1; fax: 206–                    and those cracks grow under the action                implementation strategy that provides
                                                 766–5680; Internet https://                             of repeated stresses. This can happen                 flexibility to DAHs in determining the
                                                 www.myboeingfleet.com. You may view                     because of normal operational                         timing of service information
                                                 this referenced service information at                  conditions and design attributes, or                  development (with FAA approval),
                                                 the FAA, Transport Airplane                             because of isolated situations or                     while providing operators with certainty
                                                 Directorate, 1601 Lind Avenue SW.,                      incidents such as material defects, poor              regarding the LOV applicable to their
                                                 Renton, WA. For information on the                      fabrication quality, or corrosion pits,               airplanes.
                                                 availability of this material at the FAA,               dings, or scratches. Fatigue damage can                  We have received an evaluation by
                                                 call 425–227–1221. It is also available                 occur locally, in small areas or                      the DAH indicating that the skin lap
                                                 on the Internet at http://                              structural design details, or globally.               splice is subject to WFD. As a result of
                                                 www.regulations.gov by searching for                    Global fatigue damage is general                      WFD analysis, the stringer S–2R skin
                                                 and locating Docket No. FAA–2016–                       degradation of large areas of structure               lap splice from station (STA) 368 to
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                                                 3703.                                                   with similar structural details and stress            STA 434 requires additional
                                                                                                         levels. Multiple-site damage is global                supplemental inspection beyond the
                                                 Examining the AD Docket                                 damage that occurs in a large structural              inspections specified in the Boeing
                                                   You may examine the AD docket on                      element such as a single rivet line of a              Model 767 airplane maintenance
                                                 the Internet at http://                                 lap splice joining two large skin panels.             planning document. This condition, if
                                                 www.regulations.gov by searching for                    Global damage can also occur in                       not corrected, could result in cracking of
                                                 and locating Docket No. FAA–2016–                       multiple elements such as adjacent                    the skin lap splice, which could grow
                                                 3703; or in person at the Docket                        frames or stringers. Multiple-site-                   and result in possible rapid


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                                                                         Federal Register / Vol. 81, No. 37 / Thursday, February 25, 2016 / Proposed Rules                                                     9369

                                                 decompression and reduced structural                     FAA’s Determination                                        information at http://
                                                 integrity of the airplane.                                                                                          www.regulations.gov by searching for
                                                                                                            We are proposing this AD because we
                                                 Related Service Information Under 1                                                                                 and locating Docket No. FAA–2016–
                                                                                                          evaluated all the relevant information
                                                 CFR Part 51                                                                                                         3703.’’
                                                                                                          and determined the unsafe condition
                                                    We reviewed Boeing Alert Service                      described previously is likely to exist or                   The phrase ‘‘corrective actions’’ is
                                                 Bulletin 767–53A0260, dated August 26,                   develop in other products of the same                      used in this proposed AD. ‘‘Corrective
                                                 2014. The service information describes                  type design.                                               actions’’ are actions that correct or
                                                 procedures for a detailed inspection and                                                                            address any condition found. Corrective
                                                                                                          Proposed AD Requirements
                                                 a surface HFEC inspection at section 41,                                                                            actions in an AD could include, for
                                                 stringer S–2R skin lap splice from STA                      This proposed AD would require                          example, repairs.
                                                 368 to STA 434, for any cracking, and                    accomplishing the actions specified in
                                                                                                          the service information described                          Costs of Compliance
                                                 repair. This service information is
                                                 reasonably available because the                         previously, except as discussed under                         We estimate that this proposed AD
                                                 interested parties have access to it                     ‘‘Differences Between this Proposed AD                     affects 356 airplanes of U.S. registry.
                                                 through their normal course of business                  and the Service Information.’’ For
                                                 or by the means identified in the                        information on the procedures and                             We estimate the following costs to
                                                 ADDRESSES section.                                       compliance times, see this service                         comply with this proposed AD:

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

                                                 Inspections .........   3 work-hours × $85 per hour =                      $0          $255 per inspection cycle ..............   $90,780 per inspection cycle.
                                                                           $255 per inspection cycle.



                                                   We have received no definitive data                      For the reasons discussed above, I                       (a) Comments Due Date
                                                 that would enable us to provide cost                     certify this proposed regulation:                            We must receive comments by April 11,
                                                 estimates for the on-condition actions                     (1) Is not a ‘‘significant regulatory                    2016.
                                                 specified in this proposed AD.                           action’’ under Executive Order 12866,                      (b) Affected ADs
                                                 Authority for This Rulemaking                              (2) Is not a ‘‘significant rule’’ under                    None.
                                                                                                          the DOT Regulatory Policies and
                                                    Title 49 of the United States Code                    Procedures (44 FR 11034, February 26,                      (c) Applicability
                                                 specifies the FAA’s authority to issue                   1979),                                                        This AD applies to the Boeing Company
                                                 rules on aviation safety. Subtitle I,                                                                               Model 767–200, –300, and –400ER series
                                                                                                            (3) Will not affect intrastate aviation                  airplanes, certificated in any category, as
                                                 section 106, describes the authority of                  in Alaska, and                                             identified in Boeing Alert Service Bulletin
                                                 the FAA Administrator. Subtitle VII:                       (4) Will not have a significant                          767–53A0260, dated August 26, 2014.
                                                 Aviation Programs, describes in more                     economic impact, positive or negative,
                                                 detail the scope of the Agency’s                                                                                    (d) Subject
                                                                                                          on a substantial number of small entities
                                                 authority.                                               under the criteria of the Regulatory                         Air Transport Association (ATA) of
                                                                                                                                                                     America Code 53, Fuselage.
                                                    We are issuing this rulemaking under                  Flexibility Act.
                                                 the authority described in Subtitle VII,                                                                            (e) Unsafe Condition
                                                 Part A, Subpart III, Section 44701:                      List of Subjects in 14 CFR Part 39
                                                                                                                                                                        This AD was prompted by an evaluation by
                                                 ‘‘General requirements.’’ Under that                       Air transportation, Aircraft, Aviation                   the design approval holder indicating that
                                                 section, Congress charges the FAA with                   safety, Incorporation by reference,                        the skin lap splice is subject to widespread
                                                 promoting safe flight of civil aircraft in               Safety.                                                    fatigue damage. We are issuing this AD to
                                                 air commerce by prescribing regulations                                                                             detect and correct fatigue cracking of this
                                                 for practices, methods, and procedures                   The Proposed Amendment                                     skin lap splice, which, if not detected, could
                                                                                                                                                                     grow and result in possible rapid
                                                 the Administrator finds necessary for                      Accordingly, under the authority                         decompression and reduced structural
                                                 safety in air commerce. This regulation                  delegated to me by the Administrator,                      integrity of the airplane.
                                                 is within the scope of that authority                    the FAA proposes to amend 14 CFR part
                                                 because it addresses an unsafe condition                 39 as follows:                                             (f) Compliance
                                                 that is likely to exist or develop on                                                                                  Comply with this AD within the
                                                 products identified in this rulemaking                   PART 39—AIRWORTHINESS                                      compliance times specified, unless already
                                                 action.                                                  DIRECTIVES                                                 done.

                                                 Regulatory Findings                                                                                                 (g) Inspection and Corrective Actions
                                                                                                          ■ 1. The authority citation for part 39
                                                                                                                                                                        At the applicable time specified in
                                                   We determined that this proposed AD                    continues to read as follows:                              paragraph 1.E., ‘‘Compliance,’’ of Boeing
                                                 would not have federalism implications                       Authority: 49 U.S.C. 106(g), 40113, 44701.             Alert Service Bulletin 767–53A0260, dated
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                                                 under Executive Order 13132. This                                                                                   August 26, 2014, except as required by
                                                                                                          § 39.13   [Amended]                                        paragraph (h) of this AD: Do a detailed
                                                 proposed AD would not have a
                                                                                                          ■ 2. The FAA amends § 39.13 by adding                      inspection and a surface high frequency eddy
                                                 substantial direct effect on the States, on
                                                                                                                                                                     current (HFEC) inspection at section 41,
                                                 the relationship between the national                    the following new airworthiness
                                                                                                                                                                     stringer S–2R skin lap splice from body
                                                 Government and the States, or on the                     directive (AD):                                            station (STA) 368 to STA 434, for any
                                                 distribution of power and                                The Boeing Company: Docket No. FAA–                        cracking, and do all applicable corrective
                                                 responsibilities among the various                           2016–3703; Directorate Identifier 2015–                actions, in accordance with the
                                                 levels of government.                                        NM–115–AD.                                             Accomplishment Instructions of Boeing Alert



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                                                 9370                  Federal Register / Vol. 81, No. 37 / Thursday, February 25, 2016 / Proposed Rules

                                                 Service Bulletin 767–53A0260, dated August                 (ii) Steps not labeled as RC may be                add requirements to install new barrel
                                                 26, 2014. Do all applicable corrective actions          deviated from using accepted methods in               nuts at the forward engine mounts; or
                                                 before further flight. Repeat the inspections           accordance with the operator’s maintenance            identify the part number of the barrel
                                                 thereafter at the applicable times specified in         or inspection program without obtaining               nuts, inspect affected barrel nuts for
                                                 paragraph 1.E., ‘‘Compliance,’’ of Boeing               approval of an AMOC, provided the RC steps,
                                                 Alert Service Bulletin 767–53A0260, dated               including substeps and identified figures, can
                                                                                                                                                               gaps of the strut bulkhead and forward
                                                 August 26, 2014. If any existing external               still be done as specified, and the airplane          engine mount, and do related
                                                 repair is found in the inspection area, then            can be put back in an airworthy condition.            investigative and corrective actions if
                                                 the inspections in Part 1 of the                                                                              necessary. This proposed AD would
                                                 Accomplishment Instructions of Boeing Alert             (j) Related Information                               also remove airplanes from the
                                                 Service Bulletin 767–53A0260, dated August                 (1) For more information about this AD,            applicability. We are proposing this AD
                                                 26, 2014, are not required in the area hidden           contact Wayne Lockett, Aerospace Engineer,            to detect and correct cracked barrel nuts
                                                 by the repair, provided that the repair was             Airframe Branch, ANM–120S, FAA, Seattle               on a forward engine mount, which
                                                 previously approved by the Manager, Seattle             ACO, 1601 Lind Avenue SW., Renton, WA
                                                                                                         98057–3356; phone: 425–917–6447; fax: 425–
                                                                                                                                                               could result in reduced load capacity of
                                                 Aircraft Certification Office (ACO), or by the
                                                 Authorized Representative of the Boeing                 917–6590; email: wayne.lockett@faa.gov.               the forward engine mount, separation of
                                                 Commercial Airplanes Organization                          (2) For service information identified in          an engine under power from the
                                                 Designation Authorization (ODA), or                     this AD, contact Boeing Commercial                    airplane, and consequent loss of control
                                                 installed as specified in Part 2 of the                 Airplanes, Attention: Data & Services                 of the airplane.
                                                 Accomplishment Instructions of Boeing Alert             Management, P.O. Box 3707, MC 2H–65,                  DATES: We must receive comments on
                                                 Service Bulletin 767–53A0260, dated August              Seattle, WA 98124–2207; telephone: 206–               this proposed AD by April 11, 2016.
                                                 26, 2014. Inspections in Part 1 of the                  544–5000, extension 1; fax: 206–766–5680;
                                                 Accomplishment Instructions of Boeing Alert             Internet https://www.myboeingfleet.com. You           ADDRESSES: You may send comments,
                                                 Service Bulletin 767–53A0260, dated August              may view this referenced service information          using the procedures found in 14 CFR
                                                 26, 2014, remain applicable in areas not                at the FAA, Transport Airplane Directorate,           11.43 and 11.45, by any of the following
                                                 hidden by the repair.                                   1601 Lind Avenue SW., Renton, WA. For                 methods:
                                                                                                         information on the availability of this                 • Federal eRulemaking Portal: Go to
                                                 (h) Exception to the Service Information                material at the FAA, call 425–227–1221.               http://www.regulations.gov. Follow the
                                                   Where Boeing Alert Service Bulletin 767–                                                                    instructions for submitting comments.
                                                                                                           Issued in Renton, Washington, on February
                                                 53A0260, dated August 26, 2014, specifies a
                                                                                                         15, 2016.                                               • Fax: 202–493–2251.
                                                 compliance time ‘‘after the original issue date
                                                 of this service bulletin,’’ this AD requires            Michael Kaszycki,                                       • Mail: U.S. Department of
                                                 compliance within the specified compliance              Acting Manager, Transport Airplane                    Transportation, Docket Operations, M–
                                                 time after the effective date of this AD.               Directorate, Aircraft Certification Service.          30, West Building Ground Floor, Room
                                                                                                         [FR Doc. 2016–03698 Filed 2–24–16; 8:45 am]           W12–140, 1200 New Jersey Avenue SE.,
                                                 (i) Alternative Methods of Compliance
                                                                                                         BILLING CODE 4910–13–P                                Washington, DC 20590.
                                                 (AMOCs)
                                                                                                                                                                 • Hand Delivery: Deliver to Mail
                                                    (1) The Manager, Seattle ACO, FAA, has                                                                     address above between 9 a.m. and 5
                                                 the authority to approve AMOCs for this AD,
                                                                                                         DEPARTMENT OF TRANSPORTATION                          p.m., Monday through Friday, except
                                                 if requested using the procedures found in 14
                                                 CFR 39.19. In accordance with 14 CFR 39.19,                                                                   Federal holidays.
                                                 send your request to your principal inspector           Federal Aviation Administration                         For service information identified in
                                                 or local Flight Standards District Office, as                                                                 this NPRM, contact Boeing Commercial
                                                 appropriate. If sending information directly            14 CFR Part 39                                        Airplanes, Attention: Data & Services
                                                 to the manager of the ACO, send it to the               [Docket No. FAA–2016–3702; Directorate                Management, P. O. Box 3707, MC 2H–
                                                 attention of the person identified in                   Identifier 2015–NM–103–AD]                            65, Seattle, WA 98124–2207; telephone:
                                                 paragraph (i) of this AD. Information may be                                                                  206–544–5000, extension 1; fax: 206–
                                                 emailed to: 9-ANM-Seattle-ACO-AMOC-                     RIN 2120–AA64                                         766–5680; Internet https://
                                                 Requests@faa.gov.
                                                                                                                                                               www.myboeingfleet.com. You may view
                                                    (2) Before using any approved AMOC,                  Airworthiness Directives; The Boeing
                                                 notify your appropriate principal inspector,                                                                  this referenced service information at
                                                                                                         Company Airplanes
                                                 or lacking a principal inspector, the manager                                                                 the FAA, Transport Airplane
                                                 of the local flight standards district office/          AGENCY: Federal Aviation                              Directorate, 1601 Lind Avenue SW.,
                                                 certificate holding district office.                    Administration (FAA), DOT.                            Renton, WA. For information on the
                                                    (3) An AMOC that provides an acceptable              ACTION: Notice of proposed rulemaking                 availability of this material at the FAA,
                                                 level of safety may be used for any repair,             (NPRM).                                               call 425–227–1221. It is also available
                                                 modification, or alteration required by this                                                                  on the Internet at http://
                                                 AD if it is approved by the Boeing                      SUMMARY:   We propose to supersede                    www.regulations.gov by searching for
                                                 Commercial Airplanes ODA that has been                  Airworthiness Directive (AD) 2013–24–                 and locating Docket No. FAA–2016–
                                                 authorized by the Manager, Seattle ACO, to              12, which applies to all The Boeing
                                                 make those findings. To be approved, the                                                                      3702.
                                                 repair method, modification deviation, or
                                                                                                         Company Model 747–8 and 747–8F
                                                                                                         airplanes. AD 2013–24–12 currently                    Examining the AD Docket
                                                 alteration deviation must meet the
                                                 certification basis of the airplane, and the            requires repetitive ultrasonic or dye                    You may examine the AD docket on
                                                 approval must specifically refer to this AD.            penetrant inspections for cracking of the             the Internet at http://
                                                    (4) Except as required by paragraph (h) of           barrel nuts and bolts on each forward                 www.regulations.gov by searching for
                                                 this AD: For service information that                   engine mount, and related investigative               and locating Docket No. FAA–2016–
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                                                 contains steps that are labeled as Required             and corrective actions if necessary.                  3702; or in person at the Docket
                                                 for Compliance (RC), the provisions of                  Since we issued AD 2013–24–12, we                     Management Facility between 9 a.m.
                                                 paragraphs (i)(4)(i) and (i)(4)(ii) apply.              have determined that it is necessary to               and 5 p.m., Monday through Friday,
                                                    (i) The steps labeled as RC, including
                                                 substeps under an RC step and any figures
                                                                                                         mandate the installation of new barrel                except Federal holidays. The AD docket
                                                 identified in an RC step, must be done to               nuts or new inspections to adequately                 contains this proposed AD, the
                                                 comply with the AD. An AMOC is required                 address the unsafe condition. This                    regulatory evaluation, any comments
                                                 for any deviations to RC steps, including               proposed AD would retain the                          received, and other information. The
                                                 substeps and identified figures.                        requirements of AD 2013–24–12 and                     street address for the Docket Office


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Document Created: 2018-02-02 14:35:39
Document Modified: 2018-02-02 14:35:39
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 April 11, 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 9367 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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