81_FR_83882 81 FR 83657 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 83657 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 225 (November 22, 2016)

Page Range83657-83660
FR Document2016-26621

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that lap splices for certain stringers are subject to widespread fatigue damage (WFD). This AD requires repetitive inspections for cracking in the lower fastener row of the lap splices of certain stringers, and repair if necessary. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 81 Issue 225 (Tuesday, November 22, 2016)
[Federal Register Volume 81, Number 225 (Tuesday, November 22, 2016)]
[Rules and Regulations]
[Pages 83657-83660]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-26621]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-5034; Directorate Identifier 2015-NM-172-AD; 
Amendment 39-18702; AD 2016-22-13]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all The 
Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER 
series airplanes. This AD was prompted by an evaluation by the design 
approval holder (DAH) indicating that lap splices for certain stringers 
are subject to widespread fatigue damage (WFD). This AD requires 
repetitive inspections for cracking in the lower fastener row of the 
lap splices of certain stringers, and repair if necessary. We are 
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective December 27, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of December 27, 
2016.

ADDRESSES: For service information identified in this final rule, 
contact Boeing Commercial Airplanes, Attention: Contractual & Data 
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 
90740; telephone 562-797-1717; 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-2016-5034.

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-
5034; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and

[[Page 83658]]

other information. The address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, U.S. Department of Transportation, 
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 
New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Gaetano Settineri, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office 
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6577; fax: 425-917-6590; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to all The Boeing Company 
Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. 
The NPRM published in the Federal Register on March 29, 2016 (81 FR 
17415) (``the NPRM''). The NPRM was prompted by an evaluation by the 
DAH indicating that the S-14L and S-14R lap splices are subject to WFD. 
The NPRM proposed to require repetitive low frequency eddy current 
inspections for cracking in the lower fastener row of the S-14L and S-
14R lap splices, and repair if necessary. We are issuing this AD to 
detect and correct widespread cracking in the S-14L and S-14R lap 
splices that could rapidly link up and result in possible rapid 
decompression and reduced structural integrity of the airplane.

Comments

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

Support for the NPRM

    Boeing and a commenter, Jordan Ibsen, supported the content of the 
NPRM.

Effect of Winglets on Accomplishment of the Proposed Actions

    Aviation Partners Boeing stated that accomplishing the supplemental 
type certificate (STC) ST00830SE does not affect compliance with the 
actions specified in the NPRM.
    We agree with the commenter. We have redesignated paragraph (c) of 
the NPRM as (c)(1) and added a new paragraph (c)(2) to this final rule 
to state that installation of STC ST00830SE does not affect the ability 
to accomplish the actions required by this final rule. Therefore, for 
airplanes on which STC ST00830SE is installed, a ``change in product'' 
Alternative Method of Compliance (AMOC) approval request is not 
necessary to comply with the requirements of 14 CFR 39.17.

Request To Revise Compliance Time

    The European Aviation Safety Agency (EASA) noted that Boeing Alert 
Service Bulletin 737-53A1352, dated October 2, 2015, specifies that the 
existing 737-600/700/800/900 Maintenance Planning Document (MPD), 
Section 9, Airworthiness Limitation Instruction (ALI) Inspection 
Program, is not sufficient to prevent WFD in the S-14L and S-14R lap 
splice, lower fastener rows, between station (STA) 360-540 and STA 727-
887, as the airplane ages. EASA added that this service information 
specifies inspections at principal structural elements (PSEs) 53-30-04-
6, 53-30-04-6a, 53-60-04-6 and 53-60-04-6a before accumulating 54,000 
total flight cycles. However, EASA noted that 737-600/700/800/900 MPD, 
Section 9, C626AOO 1-CMR Table 9-2, Revision August 2012, requires 
doing the inspections before accumulating 50,000 flight cycles; which 
contradicts the initial statement that the ALI inspection program is 
not sufficient to preclude WFD. EASA concluded that if the current ALI 
is not sufficient to preclude WFD, then the 50,000 flight cycles should 
be reduced, rather than increased to 54,000 flight cycles.
    We infer the commenter is requesting that we reduce the 54,000 
flight-cycle compliance time specified in Boeing Alert Service Bulletin 
737-53A1352, Revision 1, dated March 10, 2016 (which is the appropriate 
source of service information for accomplishing the required actions in 
this AD). We do not agree with the request to reduce the compliance 
time. However, we do agree to clarify the WFD analysis. Boeing uses a 
different methodology than the standard damage tolerance analysis for 
evaluating structure that is susceptible to WFD. This methodology can 
sometimes produce a longer initial inspection threshold than the 
baseline maintenance program, but requires more frequent repetitive 
inspections, as in the case of the S-14L and S-14R lap splices. 
Although, for certain airplanes, the initial WFD threshold specified in 
Boeing Alert Service Bulletin 737-53A1352, Revision 1, dated March 10, 
2016, is 4,000 flight cycles more than the ALI threshold; the 
repetitive inspection interval is reduced by 6,000 flight cycles.
    Operators are still required to accomplish the ALI inspections in 
accordance with 14 CFR 91.403(c). However, if the inspections specified 
in Boeing Alert Service Bulletin 737-53A1352, Revision 1, dated March 
10, 2016, and the ALI inspections overlap (same location, inspection 
detail, and technique) then the more restrictive of the two programs 
satisfies both requirements. Since a specific revision of the ALI 
inspections are required by AD 2013-19-23, Amendment 39-17605 (78 FR 
61173, October 3, 2013), Boeing Alert Service Bulletin 737-53A1352, 
Revision 1, dated March 10, 2016, contains an approved AMOC to AD 2013-
19-23, for certain PSEs, after the initial inspections in that service 
bulletin are accomplished. We have not changed this AD in this regard.

Request for Clarification of Extent of Boeing Organization Designation 
Authorization (ODA)

    Southwest Airlines (SWA) asked for clarification that the Boeing 
ODA identified in paragraph (i)(3) of the proposed AD can provide an 
AMOC for any ``repair, modification, or alteration'' that includes the 
authority to approve existing repairs in the inspection area that 
inhibit accomplishment of the AD requirements as terminating action to 
paragraph (g) of the proposed AD. SWA also asked if the ODA has the 
authority to provide alternative inspection procedures for repaired 
areas where the inspection in paragraph (g) of the proposed AD cannot 
be accomplished. Additionally, SWA asked that we clarify that the 
Boeing ODA identified in paragraph (i)(3) of the proposed AD is able to 
issue an AMOC for an existing repair at the S-14 lap joint (where the 
location of the repair inhibits accomplishing the initial inspection), 
provided the repair was approved by any FAA designation authority and 
there are a minimum of three fastener rows above and below the lap 
joint. SWA stated that neither Boeing Alert Service Bulletin 737-
53A1352, dated October 2, 2015, nor the NPRM clearly state how to 
address existing repairs that prevent accomplishment of the inspections 
specified in paragraph (g) of the proposed AD.
    We agree with the commenter that clarification of the extent of the 
authority of the Boeing ODA is necessary. The Boeing ODA includes the 
authority to evaluate existing repairs and provide alternative 
inspection programs in the repaired area, and includes approval of 
alternative inspections as AMOCs if accomplishment of the inspections 
required by paragraph (g) of this AD is inhibited. We have not changed 
this AD in this regard.

[[Page 83659]]

    We infer that SWA is asking if the Boeing ODA can issue a global 
AMOC for the referenced repair. The Boeing ODA does not have that 
authority. We have not received any information from Boeing that 
defines such a repair that would be considered for a global AMOC. If 
Boeing provides supporting data, we will evaluate the data to determine 
if that repair and any associated inspections provide an acceptable 
level of safety. We have not changed this AD in this regard.

Change to This AD

    We have reviewed Boeing Alert Service Bulletin 737-53A1352, 
Revision 1, dated March 10, 2016, and there are no substantial changes. 
Therefore, we have included Boeing Alert Service Bulletin 737-53A1352, 
Revision 1, dated March 10, 2016, as the appropriate source of service 
information for accomplishing in the actions required by paragraph (g) 
of this AD. We have also added a new paragraph (h) to this AD to 
provide credit for actions done prior to the effective date of this AD 
using Boeing Alert Service Bulletin 737-53A1352, dated October 2, 2015. 
We have redesignated subsequent paragraphs accordingly.

Conclusion

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

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 737-53A1352, Revision 1, 
dated March 10, 2016. The service information describes procedures for 
low frequency eddy current inspections and repair for cracking in the 
lower fastener row of the S-14L and S-14R 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.

Costs of Compliance

    We estimate that this AD affects 1,513 airplanes of U.S. registry. 
We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
              Action                    Labor cost        Parts cost      Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Inspection for Group 1 airplanes   84 work-hours x $85              $0  $7,140 per           $10,502,940 per
 (1,471 airplanes).                 per hour = $7,140                    inspection cycle.    inspection cycle.
                                    per inspection
                                    cycle.
Inspection for Group 2 airplanes   65 work-hours x $85               0  $5,525 per           $232,050 per
 (42 airplanes).                    per hour = $5,525                    inspection cycle.    inspection cycle.
                                    per inspection
                                    cycle.
----------------------------------------------------------------------------------------------------------------

    We have received no definitive data that enables us to provide cost 
estimates for the on-condition actions specified in this AD.

Authority for This Rulemaking

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

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13   [Amended]

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

2016-22-13 The Boeing Company: Amendment 39-18702; Docket No. FAA-
2016-5034; Directorate Identifier 2015-NM-172-AD.

(a) Effective Date

    This AD is effective December 27, 2016.

(b) Affected ADs

    None.

(c) Applicability

    (1) This AD applies to all The Boeing Company Model 737-600, -
700, -700C, -800, -900, and -900ER series airplanes, certificated in 
any category.
    (2) Installation of Supplemental Type Certificate (STC) 
ST00830SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgSTC.nsf/0/38B606833BBD98B386257FAA00602538?OpenDocument&Highlight=st00830se) 
does not affect the ability to accomplish the actions required by 
this AD. Therefore, for airplanes on which STC

[[Page 83660]]

ST00830SE is installed, a ``change in product'' alternative method 
of compliance (AMOC) approval request is not necessary to comply 
with the requirements of 14 CFR 39.17.

(d) Subject

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

(e) Unsafe Condition

    This AD was prompted by an evaluation by the design approval 
holder (DAH) indicating that the stringer (S)-14L and S-14R lap 
splices are subject to widespread fatigue damage (WFD). We are 
issuing this AD to detect and correct widespread cracking in the S-
14L and S-14R lap splices that could rapidly link up 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) Repetitive Inspections

    At the applicable compliance time specified in paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 737-53A1352, 
Revision 1, dated March 10, 2016, do a low frequency eddy current 
inspection for cracking of the lower fastener row of S-14L and S-14R 
lap splices, in accordance with the Accomplishment Instructions of 
Boeing Alert Service Bulletin 737-53A1352, Revision 1, dated March 
10, 2016. Repeat the inspection thereafter at the applicable times 
specified in paragraph 1.E., ``Compliance,'' of Boeing Alert Service 
Bulletin 737-53A1352, Revision 1, dated March 10, 2016. If any 
cracking is found, before further flight, repair using a method 
approved in accordance with the procedures specified in paragraph 
(i) of this AD.

(h) 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 737-
53A1352, dated October 2, 2015.

(i) 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 (j) 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 
(i)(4)(i) and (i)(4)(ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. If a step or substep is labeled ``RC Exempt,'' then the 
RC requirement is removed from that step or substep. An AMOC is 
required for any deviations to RC steps, including substeps and 
identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(j) Related Information

    For more information about this AD, contact Gaetano Settineri, 
Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle ACO, 
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6577; 
fax: 425-917-6590; email: [email protected].

(k) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Boeing Alert Service Bulletin 737-53A1352, Revision 1, dated 
March 10, 2016.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Contractual & Data Services 
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740; 
telephone 562-797-1717; Internet https://www.myboeingfleet.com.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on October 21, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-26621 Filed 11-21-16; 8:45 am]
 BILLING CODE 4910-13-P



                                                               Federal Register / Vol. 81, No. 225 / Tuesday, November 22, 2016 / Rules and Regulations                                       83657

                                              PART 39—AIRWORTHINESS                                   (f) Alternative Methods of Compliance                 DEPARTMENT OF TRANSPORTATION
                                              DIRECTIVES                                              (AMOCs)
                                                                                                        The Manager, Engine Certification Office,           Federal Aviation Administration
                                              ■ 1. The authority citation for part 39                 FAA, may approve AMOCs for this AD. Use
                                              continues to read as follows:                           the procedures found in 14 CFR 39.19 to               14 CFR Part 39
                                                                                                      make your request. You may email your                 [Docket No. FAA–2016–5034; Directorate
                                                  Authority: 49 U.S.C. 106(g), 40113, 44701.
                                                                                                      request to: ANE-AD-AMOC@faa.gov.                      Identifier 2015–NM–172–AD; Amendment
                                              § 39.13     [Amended]                                   (g) Related Information                               39–18702; AD 2016–22–13]

                                              ■ 2. The FAA amends § 39.13 by adding                     (1) For more information about this AD,             RIN 2120–AA64
                                              the following new airworthiness                         contact Michael Richardson-Bach, Aerospace
                                                                                                      Engineer, Engine Certification Office, FAA,           Airworthiness Directives; The Boeing
                                              directive (AD):
                                                                                                      Engine & Propeller Directorate, 1200 District         Company Airplanes
                                              2016–23–04 BRP-Powertrain GmbH & Co
                                                                                                      Avenue, Burlington, MA 01803; phone: 781–             AGENCY:  Federal Aviation
                                                  KG (formerly BRP-Rotax GmbH & Co
                                                  KG, Bombardier-Rotax GmbH & Co. KG,                 238–7747; fax: 781–238–7199; email:                   Administration (FAA), DOT.
                                                  and Bombardier-Rotax GmbH):                         michael.richardson-bach@faa.gov.
                                                                                                                                                            ACTION: Final rule.
                                                  Amendment 39–18711; Docket No.                        (2) Refer to MCAI European Aviation
                                                  FAA–2016–9103; Directorate Identifier               Safety Agency AD 2016–0144, dated July 19,            SUMMARY:   We are adopting a new
                                                  2016–NE–18–AD.                                      2016 (corrected July 25, 2016), for more              airworthiness directive (AD) for all The
                                                                                                      information. You may examine the MCAI in              Boeing Company Model 737–600, –700,
                                              (a) Effective Date
                                                                                                      the AD docket on the Internet at http://              –700C, –800, –900, and –900ER series
                                                  This AD is effective December 7, 2016.              www.regulations.gov by searching for and              airplanes. This AD was prompted by an
                                              (b) Affected ADs                                        locating it in Docket No. FAA–2016–9103.              evaluation by the design approval
                                                  None.                                               (h) Material Incorporated by Reference                holder (DAH) indicating that lap splices
                                              (c) Applicability                                          (1) The Director of the Federal Register           for certain stringers are subject to
                                                                                                      approved the incorporation by reference               widespread fatigue damage (WFD). This
                                                 This AD applies to BRP-Powertrain GmbH                                                                     AD requires repetitive inspections for
                                              & Co KG Rotax model 912 F2, 912 F3, 912                 (IBR) of the service information listed in this
                                                                                                      paragraph under 5 U.S.C. 552(a) and 1 CFR             cracking in the lower fastener row of the
                                              F4, 912 S2, 912 S3, and 912 S4 engines, and
                                              Rotax 914 F2, 914 F3, and 914 F4 engines                part 51.                                              lap splices of certain stringers, and
                                              with:                                                      (2) You must use this service information          repair if necessary. We are issuing this
                                                 (1) Engine serial numbers (S/Ns) listed in           as applicable to do the actions required by           AD to address the unsafe condition on
                                              Planning Information, Paragraph 1, Criterion            this AD, unless the AD specifies otherwise.           these products.
                                              A, of BRP-Powertrain GmbH & Co KG Alert                    (i) BRP-Powertrain GmbH & Co KG Alert              DATES: This AD is effective December
                                              Service Bulletin (ASB) ASB–912–069R1/                   Service Bulletin ASB–912–069R1/ASB–914–               27, 2016.
                                              ASB–914–051R1 (one document), Revision 1,               051R1 (one document), Revision 1, dated July             The Director of the Federal Register
                                              dated July 22, 2016.
                                                                                                      22, 2016.                                             approved the incorporation by reference
                                                 (2) Carburetor part numbers (P/Ns) and S/
                                              Ns listed in Planning Information, Paragraph
                                                                                                         (ii) Reserved.                                     of a certain publication listed in this AD
                                              1, Criterion B, of BRP-Powertrain GmbH & Co                (3) For BRP-Powertrain GmbH & Co KG                as of December 27, 2016.
                                              KG ASB ASB–912–069R1/ASB–914–051R1                      service information identified in this AD,            ADDRESSES: For service information
                                              (one document), Revision 1, dated July 22,              contact BRP-Powertrain GmbH & Co KG,                  identified in this final rule, contact
                                              2016; or                                                Rotaxstrasse 1, A–4623 Gunskirchen, Austria;          Boeing Commercial Airplanes,
                                                 (3) Carburetor floats, P/N 861185, that do           phone: +43 7246 6010; fax: +43 7246 601               Attention: Contractual & Data Services
                                              not have 3 dots molded on the surface, and              9130; email: airworthiness@brp.com;                   (C&DS), 2600 Westminster Blvd., MC
                                              installed after May 9, 2016.                            Internet: http://www.FLYROTAX.com.
                                                                                                                                                            110–SK57, Seal Beach, CA 90740;
                                                                                                         (4) You may view this service information
                                              (d) Reason                                                                                                    telephone 562–797–1717; Internet
                                                                                                      at FAA, Engine & Propeller Directorate, 1200
                                                 This AD was prompted by a report of a                                                                      https://www.myboeingfleet.com. You
                                                                                                      District Avenue, Burlington, MA 01803. For
                                              quality escape in the manufacturing of the                                                                    may view this referenced service
                                                                                                      information on the availability of this
                                              affected carburetor floats. We are issuing this                                                               information at the FAA, Transport
                                              AD to prevent failure of the carburetor float,          material at the FAA, call 781–238–7125.
                                                                                                                                                            Airplane Directorate, 1601 Lind Avenue
                                              failure of the engine, in-flight shutdown, and             (5) You may view this service information
                                                                                                                                                            SW., Renton, WA. For information on
                                              loss of the airplane.                                   at the National Archives and Records
                                                                                                      Administration (NARA). For information on
                                                                                                                                                            the availability of this material at the
                                              (e) Actions and Compliance                              the availability of this material at NARA, call
                                                                                                                                                            FAA, call 425–227–1221. It is also
                                                 Comply with this AD within the                       202–741–6030, or go to: http://
                                                                                                                                                            available on the Internet at http://
                                              compliance times specified, unless already              www.archives.gov/federal-register/cfr/ibr-            www.regulations.gov by searching for
                                              done.                                                   locations.html.                                       and locating Docket No. FAA–2016–
                                                 (1) Within 25 flight hours (FHs) or 30 days                                                                5034.
                                              after the effective date of this AD, replace any          Issued in Burlington, Massachusetts, on
                                              affected carburetor float with a float that is          November 7, 2016.                                     Examining the AD Docket
                                              eligible for installation in accordance with            Ann C. Mollica,                                         You may examine the AD docket on
                                              the Accomplishment Instructions, Paragraph              Acting Directorate Manager, Engine &                  the Internet at http://
                                              3, of BRP-Powertrain GmbH & Co KG Rotax                                                                       www.regulations.gov by searching for
                                                                                                      Propeller Directorate, Aircraft Certification
sradovich on DSK3GMQ082PROD with RULES




                                              ASB ASB–912–069R1/ASB–914–051R1 (one                                                                          and locating Docket No. FAA–2016–
                                                                                                      Service.
                                              document), Revision 1, dated July 22, 2016.
                                                 (2) After the effective date of this AD, do          [FR Doc. 2016–27922 Filed 11–21–16; 8:45 am]          5034; or in person at the Docket
                                              not install on any engine a carburetor float,           BILLING CODE 4910–13–P
                                                                                                                                                            Management Facility between 9 a.m.
                                              P/N 861185, delivered between May 8, 2016,                                                                    and 5 p.m., Monday through Friday,
                                              and July 17, 2016, that does not have 3 dots                                                                  except Federal holidays. The AD docket
                                              molded into the surface. If the delivery date                                                                 contains this AD, the regulatory
                                              is not documented, do not install the part.                                                                   evaluation, any comments received, and


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                                              83658            Federal Register / Vol. 81, No. 225 / Tuesday, November 22, 2016 / Rules and Regulations

                                              other information. The address for the                  Therefore, for airplanes on which STC                 accordance with 14 CFR 91.403(c).
                                              Docket Office (phone: 800–647–5527) is                  ST00830SE is installed, a ‘‘change in                 However, if the inspections specified in
                                              Docket Management Facility, U.S.                        product’’ Alternative Method of                       Boeing Alert Service Bulletin 737–
                                              Department of Transportation, Docket                    Compliance (AMOC) approval request is                 53A1352, Revision 1, dated March 10,
                                              Operations, M–30, West Building                         not necessary to comply with the                      2016, and the ALI inspections overlap
                                              Ground Floor, Room W12–140, 1200                        requirements of 14 CFR 39.17.                         (same location, inspection detail, and
                                              New Jersey Avenue SE., Washington,                                                                            technique) then the more restrictive of
                                                                                                      Request To Revise Compliance Time
                                              DC 20590.                                                                                                     the two programs satisfies both
                                              FOR FURTHER INFORMATION CONTACT:                           The European Aviation Safety Agency                requirements. Since a specific revision
                                              Gaetano Settineri, Aerospace Engineer,                  (EASA) noted that Boeing Alert Service                of the ALI inspections are required by
                                              Airframe Branch, ANM–120S, FAA,                         Bulletin 737–53A1352, dated October 2,                AD 2013–19–23, Amendment 39–17605
                                              Seattle Aircraft Certification Office                   2015, specifies that the existing 737–                (78 FR 61173, October 3, 2013), Boeing
                                              (ACO), 1601 Lind Avenue SW., Renton,                    600/700/800/900 Maintenance Planning                  Alert Service Bulletin 737–53A1352,
                                              WA 98057–3356; phone: 425–917–6577;                     Document (MPD), Section 9,                            Revision 1, dated March 10, 2016,
                                              fax: 425–917–6590; email:                               Airworthiness Limitation Instruction                  contains an approved AMOC to AD
                                              gaetano.settineri@faa.gov.                              (ALI) Inspection Program, is not                      2013–19–23, for certain PSEs, after the
                                              SUPPLEMENTARY INFORMATION:
                                                                                                      sufficient to prevent WFD in the S–14L                initial inspections in that service
                                                                                                      and S–14R lap splice, lower fastener                  bulletin are accomplished. We have not
                                              Discussion                                              rows, between station (STA) 360–540                   changed this AD in this regard.
                                                 We issued a notice of proposed                       and STA 727–887, as the airplane ages.
                                                                                                      EASA added that this service                          Request for Clarification of Extent of
                                              rulemaking (NPRM) to amend 14 CFR                                                                             Boeing Organization Designation
                                              part 39 by adding an AD that would                      information specifies inspections at
                                                                                                      principal structural elements (PSEs) 53–              Authorization (ODA)
                                              apply to all The Boeing Company Model
                                              737–600, –700, –700C, –800, –900, and                   30–04–6, 53–30–04–6a, 53–60–04–6 and                    Southwest Airlines (SWA) asked for
                                              –900ER series airplanes. The NPRM                       53–60–04–6a before accumulating                       clarification that the Boeing ODA
                                              published in the Federal Register on                    54,000 total flight cycles. However,                  identified in paragraph (i)(3) of the
                                              March 29, 2016 (81 FR 17415) (‘‘the                     EASA noted that 737–600/700/800/900                   proposed AD can provide an AMOC for
                                              NPRM’’). The NPRM was prompted by                       MPD, Section 9, C626AOO 1–CMR                         any ‘‘repair, modification, or alteration’’
                                              an evaluation by the DAH indicating                     Table 9–2, Revision August 2012,                      that includes the authority to approve
                                              that the S–14L and S–14R lap splices                    requires doing the inspections before                 existing repairs in the inspection area
                                              are subject to WFD. The NPRM                            accumulating 50,000 flight cycles;                    that inhibit accomplishment of the AD
                                              proposed to require repetitive low                      which contradicts the initial statement               requirements as terminating action to
                                              frequency eddy current inspections for                  that the ALI inspection program is not                paragraph (g) of the proposed AD. SWA
                                              cracking in the lower fastener row of the               sufficient to preclude WFD. EASA                      also asked if the ODA has the authority
                                              S–14L and S–14R lap splices, and repair                 concluded that if the current ALI is not              to provide alternative inspection
                                              if necessary. We are issuing this AD to                 sufficient to preclude WFD, then the                  procedures for repaired areas where the
                                              detect and correct widespread cracking                  50,000 flight cycles should be reduced,               inspection in paragraph (g) of the
                                              in the S–14L and S–14R lap splices that                 rather than increased to 54,000 flight                proposed AD cannot be accomplished.
                                              could rapidly link up and result in                     cycles.                                               Additionally, SWA asked that we clarify
                                                                                                         We infer the commenter is requesting               that the Boeing ODA identified in
                                              possible rapid decompression and
                                                                                                      that we reduce the 54,000 flight-cycle                paragraph (i)(3) of the proposed AD is
                                              reduced structural integrity of the
                                                                                                      compliance time specified in Boeing                   able to issue an AMOC for an existing
                                              airplane.
                                                                                                      Alert Service Bulletin 737–53A1352,                   repair at the S–14 lap joint (where the
                                              Comments                                                Revision 1, dated March 10, 2016                      location of the repair inhibits
                                                We gave the public the opportunity to                 (which is the appropriate source of                   accomplishing the initial inspection),
                                              participate in developing this AD. The                  service information for accomplishing                 provided the repair was approved by
                                              following presents the comments                         the required actions in this AD). We do               any FAA designation authority and
                                              received on the NPRM and the FAA’s                      not agree with the request to reduce the              there are a minimum of three fastener
                                              response to each comment.                               compliance time. However, we do agree                 rows above and below the lap joint.
                                                                                                      to clarify the WFD analysis. Boeing uses              SWA stated that neither Boeing Alert
                                              Support for the NPRM                                    a different methodology than the                      Service Bulletin 737–53A1352, dated
                                                Boeing and a commenter, Jordan                        standard damage tolerance analysis for                October 2, 2015, nor the NPRM clearly
                                              Ibsen, supported the content of the                     evaluating structure that is susceptible              state how to address existing repairs
                                              NPRM.                                                   to WFD. This methodology can                          that prevent accomplishment of the
                                                                                                      sometimes produce a longer initial                    inspections specified in paragraph (g) of
                                              Effect of Winglets on Accomplishment                    inspection threshold than the baseline                the proposed AD.
                                              of the Proposed Actions                                 maintenance program, but requires more                  We agree with the commenter that
                                                 Aviation Partners Boeing stated that                 frequent repetitive inspections, as in the            clarification of the extent of the
                                              accomplishing the supplemental type                     case of the S–14L and S–14R lap splices.              authority of the Boeing ODA is
                                              certificate (STC) ST00830SE does not                    Although, for certain airplanes, the                  necessary. The Boeing ODA includes
                                              affect compliance with the actions                      initial WFD threshold specified in                    the authority to evaluate existing repairs
                                              specified in the NPRM.                                  Boeing Alert Service Bulletin 737–                    and provide alternative inspection
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                                                 We agree with the commenter. We                      53A1352, Revision 1, dated March 10,                  programs in the repaired area, and
                                              have redesignated paragraph (c) of the                  2016, is 4,000 flight cycles more than                includes approval of alternative
                                              NPRM as (c)(1) and added a new                          the ALI threshold; the repetitive                     inspections as AMOCs if
                                              paragraph (c)(2) to this final rule to state            inspection interval is reduced by 6,000               accomplishment of the inspections
                                              that installation of STC ST00830SE does                 flight cycles.                                        required by paragraph (g) of this AD is
                                              not affect the ability to accomplish the                   Operators are still required to                    inhibited. We have not changed this AD
                                              actions required by this final rule.                    accomplish the ALI inspections in                     in this regard.


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                                                               Federal Register / Vol. 81, No. 225 / Tuesday, November 22, 2016 / Rules and Regulations                                             83659

                                                We infer that SWA is asking if the                    AD. We have also added a new                            burden on any operator or increase the
                                              Boeing ODA can issue a global AMOC                      paragraph (h) to this AD to provide                     scope of this AD.
                                              for the referenced repair. The Boeing                   credit for actions done prior to the
                                              ODA does not have that authority. We                    effective date of this AD using Boeing                  Related Service Information Under 1
                                              have not received any information from                  Alert Service Bulletin 737–53A1352,                     CFR Part 51
                                              Boeing that defines such a repair that                  dated October 2, 2015. We have                            We reviewed Boeing Alert Service
                                              would be considered for a global                        redesignated subsequent paragraphs                      Bulletin 737–53A1352, Revision 1,
                                              AMOC. If Boeing provides supporting                     accordingly.                                            dated March 10, 2016. The service
                                              data, we will evaluate the data to                                                                              information describes procedures for
                                              determine if that repair and any                        Conclusion
                                                                                                                                                              low frequency eddy current inspections
                                              associated inspections provide an                         We reviewed the relevant data,
                                                                                                                                                              and repair for cracking in the lower
                                              acceptable level of safety. We have not                 considered the comments received, and
                                                                                                                                                              fastener row of the S–14L and S–14R lap
                                              changed this AD in this regard.                         determined that air safety and the
                                                                                                                                                              splices. This service information is
                                                                                                      public interest require adopting this AD
                                              Change to This AD                                                                                               reasonably available because the
                                                                                                      with the changes described previously
                                                 We have reviewed Boeing Alert                                                                                interested parties have access to it
                                                                                                      and minor editorial changes. We have
                                              Service Bulletin 737–53A1352, Revision                                                                          through their normal course of business
                                                                                                      determined that these minor changes:
                                              1, dated March 10, 2016, and there are                    • Are consistent with the intent that                 or by the means identified in the
                                              no substantial changes. Therefore, we                                                                           ADDRESSES section.
                                                                                                      was proposed in the NPRM for
                                              have included Boeing Alert Service                      correcting the unsafe condition; and                    Costs of Compliance
                                              Bulletin 737–53A1352, Revision 1,                         • Do not add any additional burden
                                              dated March 10, 2016, as the                            upon the public than was already                          We estimate that this AD affects 1,513
                                              appropriate source of service                           proposed in the NPRM.                                   airplanes of U.S. registry. We estimate
                                              information for accomplishing in the                      We also determined that these                         the following costs to comply with this
                                              actions required by paragraph (g) of this               changes will not increase the economic                  AD:

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

                                              Inspection for Group 1 airplanes           84 work-hours × $85 per hour =                             $0   $7,140 per inspection       $10,502,940 per inspec-
                                                (1,471 airplanes).                         $7,140 per inspection cycle.                                    cycle.                      tion cycle.
                                              Inspection for Group 2 airplanes           65 work-hours × $85 per hour =                              0   $5,525 per inspection       $232,050 per inspection
                                                (42 airplanes).                            $5,525 per inspection cycle.                                    cycle.                      cycle.



                                                We have received no definitive data                   13132. This AD will not have a                          PART 39—AIRWORTHINESS
                                              that enables us to provide cost estimates               substantial direct effect on the States, on             DIRECTIVES
                                              for the on-condition actions specified in               the relationship between the national
                                              this AD.                                                government and the States, or on the                    ■ 1. The authority citation for part 39
                                                                                                      distribution of power and                               continues to read as follows:
                                              Authority for This Rulemaking
                                                                                                      responsibilities among the various                          Authority: 49 U.S.C. 106(g), 40113, 44701.
                                                 Title 49 of the United States Code                   levels of government.
                                              specifies the FAA’s authority to issue                    For the reasons discussed above, I                    § 39.13    [Amended]
                                              rules on aviation safety. Subtitle I,                   certify that this AD:                                   ■ 2. The FAA amends § 39.13 by adding
                                              section 106, describes the authority of                   (1) Is not a ‘‘significant regulatory                 the following new airworthiness
                                              the FAA Administrator. Subtitle VII:                    action’’ under Executive Order 12866,                   directive (AD):
                                              Aviation Programs, describes in more
                                                                                                        (2) Is not a ‘‘significant rule’’ under               2016–22–13 The Boeing Company:
                                              detail the scope of the Agency’s
                                                                                                      DOT Regulatory Policies and Procedures                      Amendment 39–18702; Docket No.
                                              authority.                                                                                                          FAA–2016–5034; Directorate Identifier
                                                 We are issuing this rulemaking under                 (44 FR 11034, February 26, 1979),
                                                                                                                                                                  2015–NM–172–AD.
                                              the authority described in Subtitle VII,                  (3) Will not affect intrastate aviation
                                              Part A, Subpart III, Section 44701:                     in Alaska, and                                          (a) Effective Date
                                              ‘‘General requirements.’’ Under that                      (4) Will not have a significant                         This AD is effective December 27, 2016.
                                              section, Congress charges the FAA with                  economic impact, positive or negative,                  (b) Affected ADs
                                              promoting safe flight of civil aircraft in              on a substantial number of small entities
                                                                                                      under the criteria of the Regulatory                      None.
                                              air commerce by prescribing regulations
                                              for practices, methods, and procedures                  Flexibility Act.                                        (c) Applicability
                                              the Administrator finds necessary for                   List of Subjects in 14 CFR Part 39                         (1) This AD applies to all The Boeing
                                              safety in air commerce. This regulation                                                                         Company Model 737–600, –700, –700C,
                                              is within the scope of that authority                     Air transportation, Aircraft, Aviation                –800, –900, and –900ER series airplanes,
                                              because it addresses an unsafe condition                safety, Incorporation by reference,                     certificated in any category.
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                                                                                                      Safety.                                                    (2) Installation of Supplemental Type
                                              that is likely to exist or develop on
                                                                                                                                                              Certificate (STC) ST00830SE (http://
                                              products identified in this rulemaking                  Adoption of the Amendment                               rgl.faa.gov/Regulatory_and_Guidance_
                                              action.                                                                                                         Library/rgSTC.nsf/0/38B606833BBD98B386
                                                                                                        Accordingly, under the authority                      257FAA00602538?OpenDocument&Highlight
                                              Regulatory Findings                                     delegated to me by the Administrator,                   =st00830se) does not affect the ability to
                                                This AD will not have federalism                      the FAA amends 14 CFR part 39 as                        accomplish the actions required by this AD.
                                              implications under Executive Order                      follows:                                                Therefore, for airplanes on which STC



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                                              83660            Federal Register / Vol. 81, No. 225 / Tuesday, November 22, 2016 / Rules and Regulations

                                              ST00830SE is installed, a ‘‘change in                   modification, or alteration required by this            Issued in Renton, Washington, on October
                                              product’’ alternative method of compliance              AD if it is approved by the Boeing                    21, 2016.
                                              (AMOC) approval request is not necessary to             Commercial Airplanes Organization                     Michael Kaszycki,
                                              comply with the requirements of 14 CFR                  Designation Authorization (ODA) that has              Acting Manager, Transport Airplane
                                              39.17.                                                  been authorized by the Manager, Seattle               Directorate, Aircraft Certification Service.
                                              (d) Subject                                             ACO, to make those findings. To be
                                                                                                                                                            [FR Doc. 2016–26621 Filed 11–21–16; 8:45 am]
                                                                                                      approved, the repair method, modification
                                                Air Transport Association (ATA) of                    deviation, or alteration deviation must meet          BILLING CODE 4910–13–P
                                              America Code 53, Fuselage.                              the certification basis of the airplane, and the
                                              (e) Unsafe Condition                                    approval must specifically refer to this AD.
                                                                                                         (4) For service information that contains          DEPARTMENT OF TRANSPORTATION
                                                 This AD was prompted by an evaluation by
                                              the design approval holder (DAH) indicating             steps that are labeled as Required for
                                                                                                      Compliance (RC), the provisions of                    Federal Aviation Administration
                                              that the stringer (S)–14L and S–14R lap
                                              splices are subject to widespread fatigue               paragraphs (i)(4)(i) and (i)(4)(ii) of this AD
                                              damage (WFD). We are issuing this AD to                 apply.                                                14 CFR Part 39
                                              detect and correct widespread cracking in the              (i) The steps labeled as RC, including
                                                                                                                                                            [Docket No. FAA–2015–3820; Directorate
                                              S–14L and S–14R lap splices that could                  substeps under an RC step and any figures             Identifier 2014–SW–024–AD; Amendment
                                              rapidly link up and result in possible rapid            identified in an RC step, must be done to             39–18716; AD 2016–23–09]
                                              decompression and reduced structural                    comply with the AD. If a step or substep is
                                              integrity of the airplane.                              labeled ‘‘RC Exempt,’’ then the RC                    RIN 2120–AA64
                                                                                                      requirement is removed from that step or
                                              (f) Compliance
                                                                                                      substep. An AMOC is required for any                  Airworthiness Directives; Various
                                                 Comply with this AD within the                       deviations to RC steps, including substeps            Restricted Category Helicopters
                                              compliance times specified, unless already              and identified figures.
                                              done.                                                      (ii) Steps not labeled as RC may be                AGENCY:  Federal Aviation
                                              (g) Repetitive Inspections                              deviated from using accepted methods in               Administration (FAA), DOT.
                                                 At the applicable compliance time                    accordance with the operator’s maintenance            ACTION: Final rule.
                                              specified in paragraph 1.E., ‘‘Compliance,’’ of         or inspection program without obtaining
                                              Boeing Alert Service Bulletin 737–53A1352,              approval of an AMOC, provided the RC steps,           SUMMARY:   We are adopting a new
                                              Revision 1, dated March 10, 2016, do a low              including substeps and identified figures, can        airworthiness directive (AD) for various
                                              frequency eddy current inspection for                   still be done as specified, and the airplane          restricted category helicopters. This AD
                                              cracking of the lower fastener row of S–14L             can be put back in an airworthy condition.            requires cleaning and visually
                                              and S–14R lap splices, in accordance with               (j) Related Information                               inspecting certain main rotor (M/R)
                                              the Accomplishment Instructions of Boeing                                                                     blades and, depending on the outcome
                                              Alert Service Bulletin 737–53A1352,                       For more information about this AD,
                                                                                                      contact Gaetano Settineri, Aerospace
                                                                                                                                                            of the inspections, repairing or replacing
                                              Revision 1, dated March 10, 2016. Repeat the
                                              inspection thereafter at the applicable times           Engineer, Airframe Branch, ANM–120S,                  the M/R blades. This AD was prompted
                                              specified in paragraph 1.E., ‘‘Compliance,’’ of         FAA, Seattle ACO, 1601 Lind Avenue SW.,               by a report of an M/R blade with
                                              Boeing Alert Service Bulletin 737–53A1352,              Renton, WA 98057–3356; phone: 425–917–                multiple fatigue cracks around the blade
                                              Revision 1, dated March 10, 2016. If any                6577; fax: 425–917–6590; email:                       retention bolt hole. The actions are
                                              cracking is found, before further flight, repair        gaetano.settineri@faa.gov.                            intended to detect a crack in the M/R
                                              using a method approved in accordance with                                                                    blade, and prevent failure of the M/R
                                              the procedures specified in paragraph (i) of            (k) Material Incorporated by Reference
                                                                                                                                                            blade and subsequent loss of helicopter
                                              this AD.                                                   (1) The Director of the Federal Register           control.
                                                                                                      approved the incorporation by reference
                                              (h) Credit for Previous Actions                                                                               DATES: This AD is effective December
                                                                                                      (IBR) of the service information listed in this
                                                 This paragraph provides credit for the               paragraph under 5 U.S.C. 552(a) and 1 CFR             27, 2016.
                                              actions required by paragraph (g) of this AD,           part 51.                                              ADDRESSES: For service information
                                              if those actions were performed before the                 (2) You must use this service information          identified in this final rule, contact Bell
                                              effective date of this AD using Boeing Alert            as applicable to do the actions required by
                                              Service Bulletin 737–53A1352, dated October
                                                                                                                                                            Helicopter Textron, Inc., P.O. Box 482,
                                                                                                      this AD, unless the AD specifies otherwise.           Fort Worth, TX 76101; telephone (817)
                                              2, 2015.                                                   (i) Boeing Alert Service Bulletin 737–             280–3391; fax (817) 280–6466; or at
                                              (i) Alternative Methods of Compliance                   53A1352, Revision 1, dated March 10, 2016.
                                                                                                                                                            http://www.bellcustomer.com/files/.
                                              (AMOCs)                                                    (ii) Reserved.
                                                                                                         (3) For service information identified in
                                                                                                                                                            You may review a copy of the
                                                 (1) The Manager, Seattle Aircraft                                                                          referenced service information at the
                                              Certification Office (ACO), FAA, has the                this AD, contact Boeing Commercial
                                                                                                      Airplanes, Attention: Contractual & Data              FAA, Office of the Regional Counsel,
                                              authority to approve AMOCs for this AD, if
                                                                                                      Services (C&DS), 2600 Westminster Blvd.,              Southwest Region, 10101 Hillwood
                                              requested using the procedures found in 14
                                              CFR 39.19. In accordance with 14 CFR 39.19,             MC 110–SK57, Seal Beach, CA 90740;                    Pkwy, Room 6N–321, Fort Worth, TX
                                              send your request to your principal inspector           telephone 562–797–1717; Internet https://             76177.
                                              or local Flight Standards District Office, as           www.myboeingfleet.com.
                                                                                                         (4) You may view this service information          Examining the AD Docket
                                              appropriate. If sending information directly
                                              to the manager of the ACO, send it to the               at the FAA, Transport Airplane Directorate,             You may examine the AD docket on
                                              attention of the person identified in                   1601 Lind Avenue SW., Renton, WA. For                 the Internet at http://
                                              paragraph (j) of this AD. Information may be            information on the availability of this               www.regulations.gov by searching for
                                              emailed to: 9-ANM-Seattle-ACO-AMOC-                     material at the FAA, call 425–227–1221.               and locating Docket No. FAA–2015–
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                                              Requests@faa.gov.                                          (5) You may view this service information
                                                                                                                                                            3820; or in person at the Docket
                                                 (2) Before using any approved AMOC,                  that is incorporated by reference at the
                                                                                                      National Archives and Records                         Operations Office between 9 a.m. and 5
                                              notify your appropriate principal inspector,
                                              or lacking a principal inspector, the manager           Administration (NARA). For information on             p.m., Monday through Friday, except
                                              of the local flight standards district office/          the availability of this material at NARA, call       Federal holidays. The AD docket
                                              certificate holding district office.                    202–741–6030, or go to: http://                       contains this AD, the economic
                                                 (3) An AMOC that provides an acceptable              www.archives.gov/federal-register/cfr/ibr-            evaluation, any comments received, and
                                              level of safety may be used for any repair,             locations.html.                                       other information. The street address for


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Document Created: 2018-02-14 08:29:16
Document Modified: 2018-02-14 08:29:16
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective December 27, 2016.
ContactGaetano Settineri, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6577; fax: 425-917-6590; email: [email protected]
FR Citation81 FR 83657 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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