[Federal Register Volume 81, Number 128 (Tuesday, July 5, 2016)]
[Rules and Regulations]
[Pages 43483-43488]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-15291]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2015-3628; Directorate Identifier 2015-NM-025-AD;
Amendment 39-18574; AD 2016-13-10]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are superseding Airworthiness Directive (AD) 2012-12-04,
for certain The Boeing Company Model 737-300, -400, and -500 series
airplanes. AD 2012-12-04 required repetitive external detailed
inspections and nondestructive inspections to detect cracks in the
fuselage skin along the chem-mill steps at stringers S-1 and S-2R,
between station (STA) 400 and STA 460, and repair if necessary. This
new AD requires a preventive modification of the fuselage skin at crown
stringers S-1 and S-2R. This new AD also reduces the inspection
threshold for certain airplanes. This AD was prompted by a
determination that, for certain airplanes, the skin pockets adjacent to
the Air Traffic Control (ATC) antenna are susceptible to widespread
fatigue damage. We are issuing this AD to detect and correct fatigue
cracking of the fuselage skin panels at the chem-mill steps, which
could result in sudden fracture and failure of the fuselage skin
panels, and consequent rapid decompression of the airplane.
DATES: This AD is effective August 9, 2016.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of August 9,
2016.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in
[[Page 43484]]
this AD as of July 23, 2012 (77 FR 36134, June 18, 2012).
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 https://www.regulations.gov by searching for and locating Docket No. FAA-2015-
3628.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov. by searching for and locating Docket No. FAA-2015-
3628; 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: Jennifer Tsakoumakis, Aerospace
Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft
Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, CA
90712-4137; phone: 562-627-5264; fax: 562-627-5210; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2012-12-04, Amendment 39-17083 (77 FR 36134,
June 18, 2012) (``AD 2012-12-04''). AD 2012-12-04 applied to certain
The Boeing Company Model 737-300, -400, and -500 series airplanes. The
NPRM published in the Federal Register on September 14, 2015 (80 FR
55045) (``the NPRM''). The NPRM was prompted by a determination that,
for certain airplanes, the skin pockets adjacent to the ATC antenna are
susceptible to widespread fatigue damage. The NPRM proposed to continue
to require repetitive external detailed inspections and nondestructive
inspections to detect cracks in the fuselage skin along the chem-mill
steps at stringers S-1 and S-2R, between STA 400 and STA 460, and
repair if necessary. The NPRM also proposed to require a preventive
modification of the fuselage skin at crown stringers S-1 and S-2R. In
addition, the NPRM proposed to revise certain compliance times. We are
issuing this AD to detect and correct fatigue cracking of the fuselage
skin panels at the chem-mill steps, which could result in sudden
fracture and failure of the fuselage skin panels, and consequent rapid
decompression 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.
Requests To Clarify Compliance Time Changes
Boeing asked that we change the NPRM preamble, which stated that
the proposed AD would reduce the inspection thresholds ``and repetitive
intervals'' for certain airplanes. Boeing stated that the repetitive
inspection intervals specified in Boeing Alert Service Bulletin 737-
53A1293, Revision 3, dated January 23, 2015, remain unchanged from the
previous version of the service information, which was mandated by AD
2012-12-04. Boeing added that Boeing Alert Service Bulletin 737-
53A1293, Revision 3, dated January 23, 2015, reduced only the
inspection threshold for those airplanes.
We agree with the commenter's request for the reason provided. We
have changed the language in the SUMMARY of this final rule
accordingly.
Request To Clarify Acceptable Previous Alternative Methods of
Compliance (AMOCs)
Boeing and Southwest Airlines (SWA) asked that we revise paragraph
(l)(4) of the proposed AD. Boeing requested that we state that AMOCs
approved for AD 2012-12-04 are approved as AMOCs for ``all
corresponding requirements''--instead of just the requirements of
paragraph (g)--of the proposed AD. Boeing stated that this proposed
change matches the wording in paragraph (l)(4) of AD 2012-12-04. SWA
added that paragraph (l)(4) of the proposed AD does not provide credit
for AMOCs approved for the actions specified in paragraphs (f) and (g)
of AD 2008-19-03, Amendment 39-15670 (73 FR 56958, October 1, 2008)
(``AD 2008-19-03''). (AD 2008-19-03 was superseded by AD 2012-12-04.)
We agree to revise paragraph (n)(4) of this AD (paragraph (l)(4) of
the proposed AD) to specify that AMOCs approved for AD 2012-12-04 are
approved as AMOCs for all the corresponding provisions of this AD.
It is not necessary, however, to state that AMOCs approved for AD
2008-19-03 are approved for the requirements of this AD. When AD 2008-
19-03 was superseded, the corresponding provisions of AD 2008-19-03
were retained in AD 2012-12-04. Therefore, no change to this final rule
is necessary in this regard.
Request To Separate Certain Actions for Clarification
Boeing, ASL Airlines France, and SWA asked that we clarify the
requirements of paragraph (h) of the proposed AD by separating the
actions into two core paragraphs: One paragraph for ``Repairs'' and one
paragraph for the ``Preventive Modification.'' Boeing stated that
tables 1, 2, and 3 of Boeing Alert Service Bulletin 737-53A1293,
Revision 3, dated January 23, 2015, address the repair and preventive
modification instructions for Group 1 airplanes, and table 5 addresses
repair instructions for Group 2 airplanes; therefore table 5 should not
be included in paragraph (h)(2) of the proposed AD. Boeing also stated
that Note (e) of tables 1, 2, and 3 of Boeing Alert Service Bulletin
737-53A1293, Revision 3, dated January 23, 2015, provides a terminating
action provision for the repetitive inspections under the installed
preventive modification doubler; therefore a terminating action should
be added to paragraph (h)(2) of the proposed AD. ASL Airlines France
stated that, as written, paragraph (h) of the proposed AD is confusing
because it would require the preventive modification specified in
paragraph (h)(2) of the proposed AD to be installed only if cracking is
found. SWA stated that Boeing Alert Service Bulletin 737-53A1293,
Revision 3, dated January 23, 2015, does not provide repair
instructions for cracks found in four or more tear strap bays and
certain other conditions, as specified in figure 6 or figure 8 of the
Accomplishment Instructions. SWA asked that a provision be added to
paragraph (h)(2) of the proposed AD to allow for both new and existing
repairs to remain on the airplane if the repair covers all eight chem-
mill step inspection areas between STA 410 and STA 450, if approved by
the FAA or a Boeing-approved representative.
[[Page 43485]]
We agree with the commenters' requests for the reasons provided. We
have separated paragraph (h) of the proposed AD into paragraphs (h) and
(i) of this AD to clarify the actions identified by the commenters (and
have redesignated subsequent paragraphs accordingly).
Request To Add Exception for the Preventive Modification
Boeing asked that we add a new exception to address the preventive
modification. Boeing stated that paragraph (j)(3) of the proposed AD
addresses repairs, and a similar paragraph needs to be added to address
the preventive modification specified in Part 9 of the Accomplishment
Instructions of Boeing Alert Service Bulletin 737-53A1293, Revision 3,
dated January 23, 2015; Part 9 specifies contacting Boeing for
preventive modification instructions. Boeing added that the new
exception should be done using a method approved by the FAA or a Boeing
approved representative.
We agree with the commenter's request. Part 9 of the Accomplishment
Instructions of Boeing Alert Service Bulletin 737-53A1293, Revision 3,
dated January 23, 2015, specifies contacting Boeing for modification
instructions if an existing repair is installed that was not
accomplished in accordance with Boeing Alert Service Bulletin 737-
53A1293, Revision 3, dated January 23, 2015. We have revised paragraph
(l)(3) of this AD (paragraph (j)(3) of the proposed AD) to include the
exception to account for the preventive modification.
Effect of Winglets on Accomplishment of the Proposed Actions
Aviation Partners Boeing stated that accomplishing the supplemental
type certificate (STC) ST01219SE does not affect the actions specified
in the NPRM.
We agree with the commenter. We have redesignated paragraph (c) of
the proposed AD as (c)(1) and added new paragraph (c)(2) to this AD to
state that installation of STC ST01219SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/BE866B732F6CF31086257B9700692796?OpenDocument&Highlight=st01219se) does
not affect the ability to accomplish the actions required by this final
rule. Therefore, for airplanes on which STC ST01219SE is installed, a
``change in product'' AMOC approval request is not necessary to comply
with the requirements of 14 CFR 39.17.
Request To Restate the Optional Modification in AD 2012-12-04
Boeing and Al Nippon Airways (ANA) asked that the optional
modification specified in paragraph (i) of AD 2012-12-04 be restated in
this AD. The commenters stated that Section 1.F., ``Approval'' of
Boeing Alert Service Bulletin 737-53A1305, Revision 1, dated September
19, 2012, includes approval of the accomplishment of the inspections
and modifications, in accordance with that service information for the
modified area only, as a method of compliance with the modification
specified in paragraph (i) of AD 2012-12-04. The commenters added that
since the optional modification is not restated in the proposed AD,
this approval is now eliminated.
We agree with the commenters for the reasons provided. We have
restated the optional modification in new paragraph (j) of this AD
(paragraph (i) of AD 2012-12-04), and redesignated subsequent
paragraphs accordingly.
Request To Clarify the Extent of AMOC Approvals
Boeing asked whether AMOCs would be considered for ``preventive
modifications,'' in addition to repairs, in paragraph (l)(3) of the
proposed AD. Boeing stated that adding this would address the AMOC
requirement for the mandatory preventive modification.
We agree with the commenter's request because deviations to the
mandated preventive modification are possible. Therefore, we have added
``modification'' (as well as ``alteration'') to paragraph (n)(3) of
this AD (paragraph (l)(3) of the proposed AD).
Request To Clarify Exception
ASL Airlines France asked that we clarify the reference in
paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin 737-
53A1293, Revision 3, dated January 23, 2015, specified in the
``Condition'' columns. The commenter stated that the flight-cycle
compliance time referred to in these columns specifies ``at the
Revision 3 date of this service bulletin'' instead of ``as of the
effective date of this AD.'' The commenter asked that we include a new
paragraph to clarify that ``as of the effective date of this AD''
should be used for compliance throughout the proposed AD.
We acknowledge the commenter's concern; however, paragraph (l)(1)
of the proposed AD already addressed this difference; paragraph (j)(2)
of this AD retains this provision. Therefore, no change to this AD is
necessary in this regard.
Request To Correct Typographical Errors
Boeing and ASL Airlines France asked that we correct the paragraph
reference in Note 1 to paragraph (i) of the proposed AD and in
paragraph (j)(3) of the proposed AD. The commenters stated that these
are typographical errors.
The information in Note 1 to paragraph (i) of the proposed AD has
been included in paragraph (j) of this final rule (paragraph (i) of the
proposed AD), therefore ``Note 1'' no longer exists. In light of this,
the requested correction is not necessary in this regard. We have
corrected the reference in paragraph (j)(3) of the proposed AD
(paragraph (l)(3) of this AD) accordingly.
Change to Paragraph (k) of This AD
We have revised the language in paragraph (k) of this AD (paragraph
(i) in the proposed AD) to clarify that the post-repair/post-
modification inspections are airworthiness limitations that are
required by maintenance and operational rules; therefore, these
inspections are not required by this AD.
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 737-53A1293, Revision 3,
dated January 23, 2015. The service information describes procedures
for repetitive external detailed inspections and non-destructive
inspections to detect cracks in the fuselage skin along the chem-mill
steps at stringers S-1 and S-2R, between STA 400 and STA 460, and
repair of any cracking. The service information also describes
procedures for a modification of the chem-mill steps at the locations
identified, including related investigative actions and corrective
actions, and repetitive post-mod inspections. This service information
is reasonably available
[[Page 43486]]
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 186 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
----------------------------------------------------------------------------------------------------------------
Retained inspections from AD 2012- Between 7 and 15 $0 Between $595 and Between $110,670
12-04. work-hours x $85 $1,275 per and $237,150 per
per hour, inspection cycle. inspection cycle.
depending on
airplane
configuration =
between $595 and
$1,275 per
inspection cycle.
New modification................. 236 work-hours x 1 $20,060............ $3,731,160.
$85 per hour =
$20,060.
----------------------------------------------------------------------------------------------------------------
\1\ We currently have no specific cost estimates associated with the parts necessary for the modification. We
cannot determine the cost of the materials because the modification parts must be sized at the time the
modification is installed, taking into account any existing repairs in the area.
We have received no definitive data that enables us to provide a
cost estimate 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
We have determined that 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 removing Airworthiness Directive (AD)
2012-12-04, Amendment 39-17083 (77 FR 36134, June 18, 2012), and adding
the following new AD:
2016-13-10 The Boeing Company: Amendment 39-18574; Docket No. FAA-
2015-3628; Directorate Identifier 2015-NM-025-AD.
(a) Effective Date
This AD is effective August 9, 2016.
(b) Affected ADs
This AD replaces AD 2012-12-04, Amendment 39-17083 (77 FR 36134,
June 18, 2012) (``AD 2012-12-04'').
(c) Applicability
(1) This AD applies to The Boeing Company Model 737-300, -400,
and -500 series airplanes, certificated in any category, as
identified in Boeing Alert Service Bulletin 737-53A1293, Revision 3,
dated January 23, 2015.
(2) Installation of Supplemental Type Certificate (STC)
ST01219SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/BE866B732F6CF31086257B9700692796?OpenDocument&Highlight=st01219se)
does not affect the ability to accomplish the actions required by
this AD. Therefore, for airplanes on which STC ST01219SE is
installed, a ``change in product'' alternative method of compliance
(AMOC) approval request is not necessary to comply with the
requirements of 14 CFR 39.17.
(d) Subject
Air Transport Association (ATA) of America Code 53, Fuselage.
(e) Unsafe Condition
This AD was prompted by reports of cracks found on the fuselage
skin at the chem-mill steps, and the determination that, for certain
airplanes, the skin pockets adjacent to the Air Traffic Control
antenna are susceptible to widespread fatigue damage. We are issuing
this AD to detect and correct fatigue cracking of the fuselage skin
panels at the chem-mill steps, which could result in sudden fracture
and failure of the fuselage skin panels, and consequent rapid
decompression of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspections
At the applicable time specified in tables 1, 2, 3, and 5 of
paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin
737-53A1293, Revision 3, dated January 23, 2015, except as required
by paragraphs (l)(1) and (l)(2) of this AD: Do the actions specified
in paragraphs (g)(1) and (g)(2) of this AD, in accordance with the
Accomplishment Instructions of Boeing Alert Service Bulletin 737-
53A1293, Revision 3, dated January 23, 2015, except as required by
paragraph (l)(3) of this AD. Repeat the applicable inspections
thereafter at the applicable times specified in paragraph 1.E.,
``Compliance,'' of Boeing Alert Service Bulletin 737-53A1293,
Revision 3, dated January 23, 2015.
[[Page 43487]]
(1) Do an external detailed inspection for cracking of the
fuselage skin chem-mill steps.
(2) Do an external non-destructive (medium frequency eddy
current, magneto optical imaging, C-Scan, or ultrasonic phased
array) inspection for cracking of the fuselage skin chem-mill steps.
(h) Repair
If any cracking is found during any inspection required by
paragraph (g) of this AD, do the applicable actions specified in
paragraph (h)(1), (h)(2), or (h)(3) of this AD.
(1) Repair before further flight in accordance with Part 2 (for
Group 1 airplanes) or Part 7 (for Group 2 airplanes) of the
Accomplishment Instructions of Boeing Alert Service Bulletin 737-
53A1293, Revision 3, dated January 23, 2015; except as required by
paragraph (l)(3) of this AD. Installation of a repair that meets the
conditions specified in Note (a) of table 1, 2, 3, or 5 of paragraph
1.E., ``Compliance,'' of Boeing Alert Service Bulletin 737-53A1293,
Revision 3, dated January 23, 2015, terminates the repetitive
inspections required by paragraph (g) of this AD for the area
covered by that repair only.
(2) For Group 1 airplanes: Accomplishing the modification
specified in paragraph (i) of this AD is a method of compliance with
paragraph (h)(1) of this AD.
(3) If any cracking is found in any area not covered by the
preventive modification doubler during any inspection required by
paragraph (g) of this AD: Repair before further flight, in
accordance with Part 3 of the Accomplishment Instructions of Boeing
Alert Service Bulletin 737-53A1293, Revision 3, dated January 23,
2015, except as provided by paragraph (n)(4) of this AD. Both new
and existing repairs are allowed if the repair covers all eight
chem-mill step inspection areas between STA 410 and STA 450, and the
repairs were done using a method approved in accordance with the
procedures specified in paragraph (n)(1) of this AD.
(i) Preventive Modification
For Group 1 airplanes: At the applicable time specified in
tables 1, 2 and 3 of paragraph 1.E., ``Compliance,'' of Boeing Alert
Service Bulletin 737-53A1293, Revision 3, dated January 23, 2015,
except as required by paragraphs (l)(1) and (l)(2) of this AD, do a
preventive modification of the fuselage skin at crown stringers S-1
and S-2R, including all applicable related investigative actions in
accordance with Part 9 of the Accomplishment Instructions of Boeing
Alert Service Bulletin 737-53A1293, Revision 3, dated January 23,
2015, except as provided by paragraph (n)(4) of this AD. Do all
applicable related investigative actions concurrently with the
modification. Installation of a preventive modification terminates
the repetitive inspections required by paragraph (g) of this AD for
the modified area only. Thereafter, repeat the inspections specified
in Part 3 of the Accomplishment Instructions of Boeing Alert Service
Bulletin 737-53A1293, Revision 3, dated January 23, 2015.
(j) Optional Modification
Accomplishing a modification of the chem-mill steps at any
location identified in Boeing Service Bulletin 737-53A1293, Revision
2, dated August 10, 2011, using a method approved in accordance with
the procedures specified in paragraph (n)(1) of this AD, terminates
the repetitive inspections required by paragraph (g) of this AD for
the modified area only.
(k) Post-Repair/Post-Modification Inspections
Tables 4 and 6 of paragraph 1.E., ``Compliance,'' of Boeing
Alert Service Bulletin 737-53A1293, Revision 3, dated January 23,
2015, specify post-repair/post-modification airworthiness limitation
inspections in compliance with 14 CFR 25.571(a)(3) at the modified
locations, which support compliance with 14 CFR 121.1109(c)(2) or
129.109(b)(2). As airworthiness limitations, these inspections are
required by maintenance and operational rules. It is therefore
unnecessary to mandate them in this AD. Deviations from these
inspections require FAA approval, but do not require an alternative
method of compliance.
(l) Exceptions to Service Bulletin Specifications
(1) Where Boeing Alert Service Bulletin 737-53A1293, Revision 3,
dated January 23, 2015, specifies a compliance time ``after the
Revision 3 date of this service bulletin,'' this AD requires
compliance within the specified compliance time after the effective
date of this AD.
(2) Where the Condition column of paragraph 1.E.,
``Compliance,'' of Boeing Alert Service Bulletin 737-53A1293,
Revision 3, dated January 23, 2015, specifies a condition based on
when an airplane has or has not been inspected, this AD bases the
condition on whether an airplane has or has not been inspected on
the effective date of this AD.
(3) Where Boeing Alert Service Bulletin 737-53A1293, Revision 3,
dated January 23, 2015, specifies to contact Boeing for repair or
preventive modification instructions: Before further flight, do the
repair or preventive modification, as applicable, using a method
approved in accordance with the procedures specified in paragraph
(n)(1) of this AD.
(m) Credit for Previous Actions
(1) This paragraph provides credit for actions required by
paragraphs (g) and (h) of this AD, if those actions were performed
before July 23, 2012 (the effective date of AD 2012-12-04), using
Boeing Alert Service Bulletin 737-53A1293, Revision 1, dated July 7,
2010, which is not incorporated by reference in this AD.
(2) This paragraph provides credit for actions required by
paragraphs (g) and (h) of this AD, if those actions were performed
before the effective date of this AD using Boeing Alert Service
Bulletin 737-53A1293, Revision 2, dated August 10, 2011, which was
incorporated by reference in AD 2012-12-04.
(n) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Los Angeles Aircraft Certification Office
(ACO), FAA, has the authority to approve AMOCs for this AD, if
requested using the procedures found in 14 CFR 39.19. In accordance
with 14 CFR 39.19, send your request to your principal inspector or
local Flight Standards District Office, as appropriate. If sending
information directly to the manager of the ACO, send it to the
attention of the person identified in paragraph (o)(1) of this AD.
Information may be emailed to: [email protected].
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by the Boeing Commercial Airplanes Organization
Designation Authorization (ODA) that has been authorized by the
Manager, Los Angeles ACO, to make those findings. To be approved,
the repair method, modification deviation, or alteration deviation
method must meet the certification basis of the airplane, and the
approval must specifically refer to this AD.
(4) AMOCs approved for AD 2012-12-04 are approved as AMOCs for
the corresponding provisions of this AD.
(o) Related Information
(1) For more information about this AD, contact Jennifer
Tsakoumakis, Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los
Angeles ACO, 3960 Paramount Boulevard, Lakewood, CA 90712-4137;
phone: 562-627-5264; fax: 562-627-5210; email:
[email protected].
(2) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (p)(5) and (p)(6) of this AD.
(p) 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.
(3) The following service information was approved for IBR on
August 9, 2016.
(i) Boeing Alert Service Bulletin 737-53A1293, Revision 3, dated
January 23, 2015.
(ii) Reserved.
(4) The following service information was approved for IBR on
July 23, 2012 (77 FR 36134, June 18, 2012).
(i) Boeing Service Bulletin 737-53A1293, Revision 2, dated
August 10, 2011.
(ii) Reserved.
(5) 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.
[[Page 43488]]
(6) 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.
(7) 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 June 21, 2016.
Dorr Anderson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2016-15291 Filed 7-1-16; 8:45 am]
BILLING CODE 4910-13-P