81 FR 61985 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 174 (September 8, 2016)

Page Range		61985-61987
FR Document		2016-21410

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the aft pressure bulkhead is subject to widespread fatigue damage (WFD). This AD requires repetitive inspections of the aft pressure bulkhead web for any cracking, crack indications, discrepant fastener holes, and corrosion; and corrective actions if necessary. We are issuing this AD to detect and correct cracks in the aft pressure bulkhead web, which could result in an uncontrolled decompression of the fuselage.

Federal Register, Volume 81 Issue 174 (Thursday, September 8, 2016)

[Federal Register Volume 81, Number 174 (Thursday, September 8, 2016)]
[Rules and Regulations]
[Pages 61985-61987]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-21410]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-6901; Directorate Identifier 2015-NM-192-AD; 
Amendment 39-18646; AD 2016-18-15]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model 737-600, -700, -700C, -800, and -900 series 
airplanes. This AD was prompted by an evaluation by the design approval 
holder (DAH) indicating that the aft pressure bulkhead is subject to 
widespread fatigue damage (WFD). This AD requires repetitive 
inspections of the aft pressure bulkhead web for any cracking, crack 
indications, discrepant fastener holes, and corrosion; and corrective 
actions if necessary. We are issuing this AD to detect and correct 
cracks in the aft pressure bulkhead web, which could result in an 
uncontrolled decompression of the fuselage.

DATES: This AD is effective October 13, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of October 13, 
2016.

ADDRESSES: For service information identified in this final rule, 
contact Boeing Commercial Airplanes, Attention: Data & Services 
Management, P. O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 
206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view this referenced service information 
at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., 
Renton, WA. For information on the availability of this material at the 
FAA, call 425-227-1221. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
6901.

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-
6901; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and 
other information. The address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, U.S. Department of Transportation, 
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 
New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Alan Pohl, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office 
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6450; 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 certain The Boeing Company 
Model 737-600, -700, -700C, -800, and -900 series airplanes. The NPRM 
published in the Federal Register on June 21, 2016 (81 FR 40208) (``the 
NPRM''). The NPRM was prompted by an evaluation by the design approval 
holder (DAH) indicating that the aft pressure bulkhead is subject to 
widespread fatigue damage (WFD). The NPRM proposed to require 
repetitive inspections of the aft pressure bulkhead web for any 
cracking, crack indications, discrepant fastener holes, and corrosion; 
and corrective actions if necessary. We are issuing this AD to detect 
and correct cracks in the aft pressure bulkhead web, which could result 
in an uncontrolled decompression of the fuselage.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We have considered the comments received. Boeing, the Airline 
Pilots Association International, and United Airlines supported 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.

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 change 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.

[[Page 61986]]

    We also determined that this change 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 737-53A1248, Revision 2, 
dated October 14, 2015. The service information describes procedures 
for low frequency eddy current, or high frequency eddy current, and 
detailed inspections of the bulkhead web for cracking, crack 
indications, discrepant fastener holes, and corrosion. 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 680 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
            Action                       Labor cost               Cost per product       Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Inspections..................  34 work-hours x $85 per hour   $2,890 per inspection     $1,965,200 per
                                = $2,890 per inspection        cycle.                    inspection cycle.
                                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):

2016-18-15 The Boeing Company: Amendment 39-18646; Docket No. FAA-
2016-6901; Directorate Identifier 2015-NM-192-AD.

(a) Effective Date

    This AD is effective October 13, 2016.

(b) Affected ADs

    Certain requirements of this AD terminate certain requirements 
of AD 2005-21-06, Amendment 39-14344 (70 FR 61226, October 21, 2005) 
(``AD 2005-21-06'').

(c) Applicability

    (1) This AD applies to The Boeing Company Model 737-600, -700, -
700C, -800, and -900 series airplanes, certificated in any category, 
line number 1 through 1755, as identified in Boeing Alert Service 
Bulletin 737-53A1248, Revision 2, dated October 14, 2015.
    (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 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 aft pressure bulkhead is subject to 
widespread fatigue damage (WFD). We are issuing this AD to detect 
and correct cracks in the aft pressure bulkhead web, which could 
result in an uncontrolled decompression of the fuselage.

(f) Compliance

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

(g) Repetitive Inspections

    At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 737-53A1248, 
Revision 2, dated October 14, 2015, or within 18 months after 
November 25, 2005 (the effective date of AD 2005-21-06), whichever 
occurs later: Do a low frequency eddy current (LFEC) or high 
frequency eddy current (HFEC) inspection, and a detailed inspection, 
of the aft and forward sides, as applicable, of the aft pressure 
bulkhead web at the Y chord, above and below stringer S-15L and 
stringer S-15R, to detect discrepancies (including cracking, crack 
indications, discrepant fastener holes, and corrosion), in 
accordance with the Accomplishment Instructions of Boeing Alert 
Service Bulletin 737-53A1248, Revision 2, dated October 14, 2015. 
Access and restoration procedures specified in the Accomplishment 
Instructions of Boeing Alert Service Bulletin 737-53A1248, Revision 
2, dated October 14, 2015, are not required by this AD. Operators 
may do those procedures following their maintenance practices.
    (1) If no discrepancy is found: Repeat the inspections 
thereafter at the applicable times specified in paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 737-53A1248, 
Revision 2, dated October 14, 2015.

[[Page 61987]]

    (2) If any discrepancy is found: Do the actions specified in 
paragraphs (g)(2)(i) and (g)(2)(ii) of this AD.
    (i) Repair the discrepancy before further flight using a method 
approved in accordance with the procedures specified in paragraph 
(j) of this AD.
    (ii) On areas that are not repaired, repeat the inspections 
thereafter at the applicable times specified in paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 737-53A1248, 
Revision 2, dated October 14, 2015.

(h) Terminating Action for AD 2005-21-06

    Accomplishment of the initial inspections required by paragraph 
(g) of this AD terminates the requirements of AD 2005-21-06.

(i) Credit for Previous Actions

    This paragraph provides credit for the actions specified in 
paragraph (g) of this AD, if those actions were performed before the 
effective date of this AD using Boeing Alert Service Bulletin 737-
53A1248, dated September 9, 2004; or Boeing Alert Service Bulletin 
737-53A1248, Revision 1, dated September 10, 2007; which are not 
incorporated by reference in this AD.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle Aircraft Certification Office (ACO), 
FAA, has the authority to approve AMOCs for this AD, if requested 
using the procedures found in 14 CFR 39.19. In accordance with 14 
CFR 39.19, send your request to your principal inspector or local 
Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the ACO, send it to the 
attention of the person identified in paragraph (k)(1) of this AD. 
Information may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Seattle ACO, to make those findings. To be approved, the 
repair method, modification deviation, or alteration deviation must 
meet the certification basis of the airplane, and the approval must 
specifically refer to this AD.

(k) Related Information

    (1) For more information about this AD, contact Alan Pohl, 
Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft 
Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6450; fax: 425-917-6590; email: 
[email protected].
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (l)(3) and (l)(4) of this AD.

(l) 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 737-53A1248, Revision 2, dated 
October 14, 2015.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-
5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on August 30, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-21410 Filed 9-7-16; 8:45 am]
 BILLING CODE 4910-13-P

Federal Register / Vol. 81, No. 174 / Thursday, September 8, 2016 / Rules and Regulations 61985

(i) Related Information The Boeing Company Model 737–600, SUPPLEMENTARY INFORMATION:
Refer to Mandatory Continuing –700, –700C, –800, and –900 series
Discussion
Airworthiness Information (MCAI) EASA airplanes. This AD was prompted by an
Airworthiness Directive 2015–0078, dated evaluation by the design approval We issued a notice of proposed
May 6, 2015, for related information. This holder (DAH) indicating that the aft rulemaking (NPRM) to amend 14 CFR
MCAI may be found in the AD docket on the pressure bulkhead is subject to part 39 by adding an AD that would
Internet at http://www.regulations.gov by widespread fatigue damage (WFD). This apply to certain The Boeing Company
searching for and locating Docket No. FAA– Model 737–600, –700, –700C, –800, and
2016–6665.
AD requires repetitive inspections of the
aft pressure bulkhead web for any –900 series airplanes. The NPRM
(j) Material Incorporated by Reference cracking, crack indications, discrepant published in the Federal Register on
(1) The Director of the Federal Register fastener holes, and corrosion; and June 21, 2016 (81 FR 40208) (‘‘the
approved the incorporation by reference corrective actions if necessary. We are NPRM’’). The NPRM was prompted by
(IBR) of the service information listed in this issuing this AD to detect and correct an evaluation by the design approval
paragraph under 5 U.S.C. 552(a) and 1 CFR cracks in the aft pressure bulkhead web, holder (DAH) indicating that the aft
part 51. which could result in an uncontrolled pressure bulkhead is subject to
(2) You must use this service information widespread fatigue damage (WFD). The
as applicable to do the actions required by
decompression of the fuselage.
DATES: This AD is effective October 13, NPRM proposed to require repetitive
this AD, unless this AD specifies otherwise.
(i) Fokker Manual Change Notification- 2016. inspections of the aft pressure bulkhead
Operational Documentation MCNO F100– The Director of the Federal Register web for any cracking, crack indications,
066, dated December 1, 2014. approved the incorporation by reference discrepant fastener holes, and corrosion;
(ii) Reserved. of a certain publication listed in this AD and corrective actions if necessary. We
(3) For service information identified in as of October 13, 2016. are issuing this AD to detect and correct
this AD, contact Fokker Services B.V., cracks in the aft pressure bulkhead web,
ADDRESSES: For service information
Technical Services Dept., P.O. Box 1357, which could result in an uncontrolled
2130 EL Hoofddorp, the Netherlands; identified in this final rule, contact
Boeing Commercial Airplanes, decompression of the fuselage.
telephone +31 (0)88–6280–350; fax +31
(0)88–6280–111; email technicalservices@ Attention: Data & Services Management, Comments
fokker.com; Internet http:// P. O. Box 3707, MC 2H–65, Seattle, WA
www.myfokkerfleet.com
We gave the public the opportunity to
98124–2207; telephone 206–544–5000,
(4) You may view this service information participate in developing this AD. We
extension 1; fax 206–766–5680; Internet
at the FAA, Transport Airplane Directorate, have considered the comments received.
https://www.myboeingfleet.com. You
1601 Lind Avenue SW., Renton, WA. For Boeing, the Airline Pilots Association
may view this referenced service
information on the availability of this International, and United Airlines
material at the FAA, call 425–227–1221. information at the FAA, Transport
supported the NPRM.
(5) You may view this service information Airplane Directorate, 1601 Lind Avenue
that is incorporated by reference at the SW., Renton, WA. For information on Effect of Winglets on Accomplishment
National Archives and Records the availability of this material at the of the Proposed Actions
Administration (NARA). For information on FAA, call 425–227–1221. It is also Aviation Partners Boeing stated that
the availability of this material at NARA, call available on the Internet at http:// accomplishing the supplemental type
202–741–6030, or go to: http:// www.regulations.gov by searching for
www.archives.gov/federal-register/cfr/ibr- certificate (STC) ST00830SE does not
and locating Docket No. FAA–2016– affect compliance with the actions
locations.tml.
6901. specified in the NPRM.
Issued in Renton, Washington, on August We agree with the commenter. We
29, 2016. Examining the AD Docket
have redesignated paragraph (c) of the
Michael Kaszycki, You may examine the AD docket on NPRM as (c)(1) and added a new
Acting Manager, Transport Airplane the Internet at http:// paragraph (c)(2) to this final rule to state
Directorate, Aircraft Certification Service. www.regulations.gov by searching for that installation of STC ST00830SE does
[FR Doc. 2016–21288 Filed 9–7–16; 8:45 am] and locating Docket No. FAA–2016– not affect the ability to accomplish the
BILLING CODE 4910–13–P 6901; or in person at the Docket actions required by this final rule.
Management Facility between 9 a.m. Therefore, for airplanes on which STC
and 5 p.m., Monday through Friday, ST00830SE is installed, a ‘‘change in
DEPARTMENT OF TRANSPORTATION except Federal holidays. The AD docket product’’ Alternative Method of
contains this AD, the regulatory Compliance (AMOC) approval request is
Federal Aviation Administration evaluation, any comments received, and not necessary to comply with the
other information. The address for the requirements of 14 CFR 39.17.
14 CFR Part 39 Docket Office (phone: 800–647–5527) is
Docket Management Facility, U.S. Conclusion
[Docket No. FAA–2016–6901; Directorate
Identifier 2015–NM–192–AD; Amendment Department of Transportation, Docket We reviewed the relevant data,
39–18646; AD 2016–18–15] Operations, M–30, West Building considered the comments received, and
Ground Floor, Room W12–140, 1200 determined that air safety and the
RIN 2120–AA64 New Jersey Avenue SE., Washington, public interest require adopting this AD
DC 20590. with the change described previously
Airworthiness Directives; The Boeing
FOR FURTHER INFORMATION CONTACT: and minor editorial changes. We have
Company Airplanes
Alan Pohl, Aerospace Engineer, determined that these minor changes:
Lhorne on DSK30JT082PROD with RULES

AGENCY: Federal Aviation Airframe Branch, ANM–120S, FAA, • Are consistent with the intent that
Administration (FAA), DOT. Seattle Aircraft Certification Office was proposed in the NPRM for
ACTION: Final rule. (ACO), 1601 Lind Avenue SW., Renton, correcting the unsafe condition; and
WA 98057–3356; phone: 425–917–6450; • Do not add any additional burden
SUMMARY: We are adopting a new fax: 425–917–6590; email: Alan.Pohl@ upon the public than was already
airworthiness directive (AD) for certain faa.gov. proposed in the NPRM.

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61986 Federal Register / Vol. 81, No. 174 / Thursday, September 8, 2016 / Rules and Regulations

We also determined that this change dated October 14, 2015. The service have access to it through their normal
will not increase the economic burden information describes procedures for course of business or by the means
on any operator or increase the scope of low frequency eddy current, or high identified in the ADDRESSES section.
this AD. frequency eddy current, and detailed
Costs of Compliance
inspections of the bulkhead web for
Related Service Information Under
cracking, crack indications, discrepant We estimate that this AD affects 680
1 CFR Part 51
fastener holes, and corrosion. This airplanes of U.S. registry.
We reviewed Boeing Alert Service service information is reasonably We estimate the following costs to
Bulletin 737–53A1248, Revision 2, available because the interested parties comply with this AD:
ESTIMATED COSTS
Action Labor cost Cost per product Cost on U.S. operators

Inspections ......... 34 work-hours × $85 per hour = $2,890 per inspection cycle $2,890 per inspection cycle ... $1,965,200 per inspection
cycle.

We have received no definitive data on a substantial number of small entities affect the ability to accomplish the actions
that enables us to provide cost estimates under the criteria of the Regulatory required by this AD. Therefore, for airplanes
for the on-condition actions specified in Flexibility Act. on which STC ST00830SE is installed, a
‘‘change in product’’ alternative method of
this AD.
List of Subjects in 14 CFR Part 39 compliance (AMOC) approval request is not
Authority for This Rulemaking necessary to comply with the requirements of
Air transportation, Aircraft, Aviation 14 CFR 39.17.
Title 49 of the United States Code safety, Incorporation by reference,
specifies the FAA’s authority to issue Safety. (d) Subject
rules on aviation safety. Subtitle I, Adoption of the Amendment
Air Transport Association (ATA) of
section 106, describes the authority of America Code 53, Fuselage.
the FAA Administrator. Subtitle VII: Accordingly, under the authority
(e) Unsafe Condition
Aviation Programs, describes in more delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as This AD was prompted by an evaluation by
detail the scope of the Agency’s the design approval holder (DAH) indicating
authority. follows: that the aft pressure bulkhead is subject to
We are issuing this rulemaking under widespread fatigue damage (WFD). We are
the authority described in Subtitle VII, PART 39—AIRWORTHINESS issuing this AD to detect and correct cracks
Part A, Subpart III, Section 44701: DIRECTIVES in the aft pressure bulkhead web, which
‘‘General requirements.’’ Under that could result in an uncontrolled
■ 1. The authority citation for part 39 decompression of the fuselage.
section, Congress charges the FAA with continues to read as follows:
promoting safe flight of civil aircraft in (f) Compliance
Authority: 49 U.S.C. 106(g), 40113, 44701.
air commerce by prescribing regulations Comply with this AD within the
for practices, methods, and procedures § 39.13 [Amended] compliance times specified, unless already
the Administrator finds necessary for done.
■ 2. The FAA amends § 39.13 by adding
safety in air commerce. This regulation
the following new airworthiness (g) Repetitive Inspections
is within the scope of that authority
directive (AD): At the applicable time specified in
because it addresses an unsafe condition
2016–18–15 The Boeing Company: paragraph 1.E., ‘‘Compliance,’’ of Boeing
that is likely to exist or develop on Alert Service Bulletin 737–53A1248,
products identified in this rulemaking Amendment 39–18646; Docket No.
FAA–2016–6901; Directorate Identifier Revision 2, dated October 14, 2015, or within
action. 18 months after November 25, 2005 (the
2015–NM–192–AD.
effective date of AD 2005–21–06), whichever
Regulatory Findings (a) Effective Date occurs later: Do a low frequency eddy current
This AD will not have federalism This AD is effective October 13, 2016. (LFEC) or high frequency eddy current
implications under Executive Order (HFEC) inspection, and a detailed inspection,
(b) Affected ADs of the aft and forward sides, as applicable, of
13132. This AD will not have a
substantial direct effect on the States, on Certain requirements of this AD terminate the aft pressure bulkhead web at the Y chord,
certain requirements of AD 2005–21–06, above and below stringer S–15L and stringer
the relationship between the national
Amendment 39–14344 (70 FR 61226, October S–15R, to detect discrepancies (including
government and the States, or on the cracking, crack indications, discrepant
21, 2005) (‘‘AD 2005–21–06’’).
distribution of power and fastener holes, and corrosion), in accordance
responsibilities among the various (c) Applicability with the Accomplishment Instructions of
levels of government. (1) This AD applies to The Boeing Boeing Alert Service Bulletin 737–53A1248,
For the reasons discussed above, I Company Model 737–600, –700, –700C, Revision 2, dated October 14, 2015. Access
certify that this AD: –800, and –900 series airplanes, certificated and restoration procedures specified in the
(1) Is not a ‘‘significant regulatory in any category, line number 1 through 1755, Accomplishment Instructions of Boeing Alert
action’’ under Executive Order 12866, as identified in Boeing Alert Service Bulletin Service Bulletin 737–53A1248, Revision 2,
(2) Is not a ‘‘significant rule’’ under 737–53A1248, Revision 2, dated October 14, dated October 14, 2015, are not required by
Lhorne on DSK30JT082PROD with RULES

2015. this AD. Operators may do those procedures
DOT Regulatory Policies and Procedures following their maintenance practices.
(2) Installation of Supplemental Type
(44 FR 11034, February 26, 1979), Certificate (STC) ST00830SE (http:// (1) If no discrepancy is found: Repeat the
(3) Will not affect intrastate aviation rgl.faa.gov/Regulatory_and_Guidance_ inspections thereafter at the applicable times
in Alaska, and Library/rgSTC.nsf/0/38B60 specified in paragraph 1.E., ‘‘Compliance,’’ of
(4) Will not have a significant 6833BBD98B386257FAA00602538?Open Boeing Alert Service Bulletin 737–53A1248,
economic impact, positive or negative, Document&Highlight=st00830se) does not Revision 2, dated October 14, 2015.

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Federal Register / Vol. 81, No. 174 / Thursday, September 8, 2016 / Rules and Regulations 61987

(2) If any discrepancy is found: Do the (l) Material Incorporated by Reference prompted by a report of the failure of
actions specified in paragraphs (g)(2)(i) and (1) The Director of the Federal Register the right MLG to extend due to fatigue
(g)(2)(ii) of this AD. approved the incorporation by reference cracking of the end cap fitting. We are
(i) Repair the discrepancy before further (IBR) of the service information listed in this issuing this AD to prevent such
flight using a method approved in paragraph under 5 U.S.C. 552(a) and 1 CFR
accordance with the procedures specified in
cracking, which could result in
part 51. depletion of the combined (left) and
paragraph (j) of this AD. (2) You must use this service information
(ii) On areas that are not repaired, repeat utility hydraulic system fluid and the
as applicable to do the actions required by
the inspections thereafter at the applicable this AD, unless the AD specifies otherwise. nitrogen emergency blowdown system,
times specified in paragraph 1.E., (i) Boeing Alert Service Bulletin 737– failure of the combined (left) hydraulic
‘‘Compliance,’’ of Boeing Alert Service 53A1248, Revision 2, dated October 14, 2015. system (all phases) to provide adequate
Bulletin 737–53A1248, Revision 2, dated (ii) Reserved. hydraulic pressure, and failure of the
October 14, 2015. (3) For service information identified in MLG to extend when commanded.
(h) Terminating Action for AD 2005–21–06 this AD, contact Boeing Commercial DATES: This AD is effective September
Airplanes, Attention: Data & Services 23, 2016.
Accomplishment of the initial inspections Management, P.O. Box 3707, MC 2H–65,
required by paragraph (g) of this AD Seattle, WA 98124–2207; telephone 206–
The Director of the Federal Register
terminates the requirements of AD 2005–21– 544–5000, extension 1; fax 206–766–5680; approved the incorporation by reference
06. Internet https://www.myboeingfleet.com. of certain publications listed in this AD
(i) Credit for Previous Actions (4) You may view this service information as of September 23, 2016.
at the FAA, Transport Airplane Directorate, We must receive comments on this
This paragraph provides credit for the 1601 Lind Avenue SW., Renton, WA. For AD by October 24, 2016.
actions specified in paragraph (g) of this AD, information on the availability of this
if those actions were performed before the ADDRESSES: You may send comments,
material at the FAA, call 425–227–1221.
effective date of this AD using Boeing Alert (5) You may view this service information
using the procedures found in 14 CFR
Service Bulletin 737–53A1248, dated that is incorporated by reference at the 11.43 and 11.45, by any of the following
September 9, 2004; or Boeing Alert Service National Archives and Records methods:
Bulletin 737–53A1248, Revision 1, dated Administration (NARA). For information on • Federal eRulemaking Portal: Go to
September 10, 2007; which are not the availability of this material at NARA, call http://www.regulations.gov. Follow the
incorporated by reference in this AD. 202–741–6030, or go to: http:// instructions for submitting comments.
(j) Alternative Methods of Compliance www.archives.gov/federal-register/cfr/ibr- • Fax: 202–493–2251.
(AMOCs) locations.html. • Mail: U.S. Department of
(1) The Manager, Seattle Aircraft Issued in Renton, Washington, on August Transportation, Docket Operations,
Certification Office (ACO), FAA, has the 30, 2016. M–30, West Building Ground Floor,
authority to approve AMOCs for this AD, if Michael Kaszycki, Room W12–140, 1200 New Jersey
requested using the procedures found in 14 Acting Manager, Transport Airplane Avenue SE., Washington, DC 20590.
CFR 39.19. In accordance with 14 CFR 39.19, Directorate, Aircraft Certification Service. • Hand Delivery: Deliver to Mail
send your request to your principal inspector address above between 9 a.m. and 5
[FR Doc. 2016–21410 Filed 9–7–16; 8:45 am]
or local Flight Standards District Office, as
BILLING CODE 4910–13–P p.m., Monday through Friday, except
appropriate. If sending information directly
to the manager of the ACO, send it to the Federal holidays.
attention of the person identified in For service information identified in
paragraph (k)(1) of this AD. Information may DEPARTMENT OF TRANSPORTATION this final rule, contact Gulfstream
be emailed to: 9-ANM-Seattle-ACO-AMOC- Aerospace Corporation, Technical
Requests@faa.gov. Federal Aviation Administration Publications Dept., P.O. Box 2206,
(2) Before using any approved AMOC, Savannah, GA 31402–2206; telephone
notify your appropriate principal inspector, 14 CFR Part 39 800–810–4853; fax 912–965–3520; email
or lacking a principal inspector, the manager pubs@gulfstream.com; Internet http://
of the local flight standards district office/ [Docket No. FAA–2016–9070; Directorate
Identifier 2016–NM–118–AD; Amendment www.gulfstream.com/product_support/
certificate holding district office.
(3) An AMOC that provides an acceptable 39–18642; AD 2016–18–11] technical_pubs/pubs/index.htm. You
level of safety may be used for any repair, may view this referenced service
RIN 2120–AA64 information at the FAA, Transport
modification, or alteration required by this
AD if it is approved by the Boeing Airworthiness Directives; Gulfstream Airplane Directorate, 1601 Lind Avenue
Commercial Airplanes Organization
Aerospace Corporation Airplanes SW., Renton, WA. For information on
Designation Authorization (ODA) that has the availability of this material at the
been authorized by the Manager, Seattle AGENCY: Federal Aviation FAA, call 425–227–1221. It is also
ACO, to make those findings. To be Administration (FAA), DOT. available on the Internet at http://
approved, the repair method, modification
ACTION: Final rule; request for www.regulations.gov by searching for
deviation, or alteration deviation must meet
the certification basis of the airplane, and the comments. and locating Docket No. FAA–2016–
approval must specifically refer to this AD. 9070.
SUMMARY: We are adopting a new
(k) Related Information airworthiness directive (AD) for all Examining the AD Docket
(1) For more information about this AD, Gulfstream Aerospace Corporation You may examine the AD docket on
contact Alan Pohl, Aerospace Engineer, Model G–1159, G–1159A, G–1159B, the Internet at http://
Airframe Branch, ANM–120S, FAA, Seattle G–IV, and GV airplanes; and certain www.regulations.gov by searching for
Aircraft Certification Office (ACO), 1601 Lind Model GIV–X and GV–SP airplanes. and locating Docket No. FAA–2016–
Lhorne on DSK30JT082PROD with RULES

Avenue SW., Renton, WA 98057–3356;
This AD requires a one-time 9070; or in person at the Docket
phone: 425–917–6450; fax: 425–917–6590;
email: Alan.Pohl@faa.gov. replacement of the actuator end cap Management Facility between 9 a.m.
(2) Service information identified in this fitting of the main landing gear (MLG) and 5 p.m., Monday through Friday,
AD that is not incorporated by reference is door, and revision of the maintenance or except Federal holidays. The AD docket
available at the addresses specified in inspection program to establish the life contains this AD, the regulatory
paragraphs (l)(3) and (l)(4) of this AD. limit of the end cap fitting. This AD was evaluation, any comments received, and

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Document Created: 2018-02-09 13:13:10
Document Modified: 2018-02-09 13:13:10

Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Rules and Regulations
Action		Final rule.
Dates		This AD is effective October 13, 2016.
Contact		Alan Pohl, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6450; fax: 425-917-6590; email: [email protected]
FR Citation		81 FR 61985
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

81 FR 61985 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 81, Issue 174 (September 8, 2016)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration