Document ID: FAA-2015-4207-0001
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: The Boeing Company Airplanes
Posted Date: 2015-10-28T04:00Z

[Federal Register Volume 80, Number 208 (Wednesday, October 28, 2015)]
[Rules and Regulations]
[Pages 65927-65931]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-27190]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-4207; Directorate Identifier 2015-NM-123-AD; 
Amendment 39-18304; AD 2015-21-11]
RIN 2120-AA64

Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2015-16-01 for 
certain The Boeing Company Model airplanes. AD 2015-16-01 required 
incorporating design changes to improve the reliability of the cabin 
altitude warning system by installing a redundant cabin altitude 
pressure switch, replacing the aural warning module (AWM) with a new or 
reworked AWM, and changing certain wire bundles or connecting certain 
previously capped and stowed wires as necessary. For certain airplanes, 
AD 2015-16-01 also required prior or concurrent incorporation of 
related design changes by modifying the instrument panels, installing 
light assemblies, modifying the wire bundles, and installing a new 
circuit breaker, as necessary. This AD retains all actions required by 
AD 2015-16-01. This AD was prompted by the discovery of a typographical 
error in AD 2015-16-01 that referred to a nonexistent paragraph. We are 
issuing this AD to prevent the loss of cabin altitude warning, which 
could delay flightcrew recognition of a lack of cabin pressurization, 
and could result in incapacitation of the flightcrew due to hypoxia (a 
lack of oxygen in the body), and consequent loss of control of the 
airplane.

DATES: This AD is effective November 12, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of September 15, 
2015 (80 FR 48013, August 11, 2015).
    The Director of the Federal Register approved the incorporation by 
reference of certain other publications listed in this AD as of 
November 7, 2012 (77 FR 60296, October 3, 2012).
    We must receive any comments on this AD by December 14, 2015.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this AD, contact Boeing 
Commercial Airplanes, Attention: Data & Services Management, P.O. Box 
3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-5000, 
extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. 
You may view this referenced service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information 
on the availability of this material at the FAA, call 425-227-1221. It 
is also available on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2015-4207.

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-
4207; 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 street address for the Docket Office (phone: 
800-647-5527) is in the ADDRESSES section. Comments will be available 
in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Francis Smith, Aerospace Engineer, 
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle 
Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-
3356; telephone: 425-917-6596; fax: 425-917-6590; email: 
Francis.Smith@faa.gov.

SUPPLEMENTARY INFORMATION: 

Discussion

    On July 22, 2015, we issued AD 2015-16-01, Amendment 39-18226 (80 
FR 48013, August 11, 2015), for certain The Boeing Company Model 737 
airplanes. AD 2015-16-01 required incorporating design changes to 
improve the reliability of the cabin altitude warning system by 
installing a redundant cabin altitude pressure switch, replacing the 
AWM with a new or reworked AWM, and changing certain wire bundles or 
connecting certain previously capped and stowed wires as necessary. For 
certain airplanes, AD 2015-16-01 also required prior or concurrent 
incorporation of related design changes by modifying the instrument 
panels, installing light assemblies, modifying the wire bundles, and 
installing a new circuit breaker, as necessary. AD 2015-16-01 resulted 
from the report of a flightcrew not receiving an aural warning during a 
lack of cabin pressurization event. We issued AD 2015-16-01 to prevent 
the loss of cabin altitude warning, which could delay flightcrew 
recognition of a lack of cabin pressurization, and could result in 
incapacitation of the flightcrew due to hypoxia (a lack of oxygen in 
the body), and consequent loss of control of the airplane.

Actions Since AD 2015-16-01 Was Issued

    Since we issued AD 2015-16-01, Amendment 39-18226 (80 FR 48013, 
August 11, 2015), we have discovered a typographical error in paragraph 
(j)(1)(iii) of AD 2015-16-01. That error referred to paragraph (j)(4), 
which is a paragraph that does not exist in AD 2015-16-01. The correct 
reference is paragraph (j)(1)(iv) of AD 2015-16-01. We have changed 
paragraph (j)(1)(iii) of this AD accordingly.
    We have also revised paragraph (g)(2) of this AD to remove a 
limitation to use only Boeing Special Attention Service Bulletin 737-
21-1165, Revision 3, dated July 16, 2014, after the effective date of 
AD 2015-16-01, Amendment 39-18226 (80 FR 48013, August 11, 2015).

Related Service Information Under 1 CFR Part 51

    We reviewed the following service information:
     Boeing Alert Service Bulletin 737-31A1325, Revision 2, 
dated June 5, 2014.
     Boeing Alert Service Bulletin 737-31A1332, Revision 4, 
dated October 31, 2013.

[[Page 65928]]

     Boeing Special Attention Service Bulletin 737-21-1164, 
Revision 2, dated August 23, 2013.
     Boeing Special Attention Service Bulletin 737-21-1165, 
Revision 3, dated July 16, 2014.
    The service information describes procedures for incorporating 
design changes to improve the reliability of the cabin altitude warning 
system by installing a redundant cabin altitude pressure switch, 
replacing the AWM with a new or reworked AWM, and changing certain wire 
bundles or connecting certain previously capped and stowed wires as 
necessary. 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 of this 
AD.

FAA's Determination

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

AD Requirements

    This AD requires the same actions as those required in AD 2015-16-
01, Amendment 39-18226 (80 FR 48013, August 11, 2015).

FAA's Justification and Determination of the Effective Date

    We are superseding AD 2015-16-01, Amendment 39-18226 (80 FR 48013, 
August 11, 2015), to correct a typographical error in paragraph 
(j)(1)(iii) of AD 2015-16-01, which inadvertently referenced a non-
existent paragraph, and to revise paragraph (g)(2) of this AD to remove 
a limitation to use only Boeing Special Attention Service Bulletin 737-
21-1165, Revision 3, dated July 16, 2014, after the effective date of 
AD 2015-16-01. We have made no other changes to the requirements 
published in AD 2015-16-01. Therefore, we find that notice and 
opportunity for prior public comment are unnecessary and that good 
cause exists for making this amendment effective in less than 30 days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety, and we did not provide you with notice and an opportunity to 
provide your comments before it becomes effective. However, we invite 
you to send any written data, views, or arguments about this AD. Send 
your comments to an address listed under the ADDRESSES section. Include 
the docket number FAA-2015-4207 and Directorate Identifier 2015-NM-123-
AD at the beginning of your comments. We specifically invite comments 
on the overall regulatory, economic, environmental, and energy aspects 
of this AD. We will consider all comments received by the closing date 
and may amend this AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this AD.

Costs of Compliance

    We estimate that this AD affects 1,618 airplanes of U.S. registry. 
The new requirements of this AD add no additional economic burden. The 
current costs for this AD are repeated for the convenience of affected 
operators, as follows.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                          Cost per
            Action                   Labor cost         Parts cost         product       Cost on U.S.  operators
----------------------------------------------------------------------------------------------------------------
Install a redundant cabin      Up to 62 work-hours x         $33,576  Up to $38,846...  Up to $62,852,828.
 altitude pressure switch,      $85 per hour = up to
 replace the AWM with a new     $5,270.
 or reworked AWM, change
 certain wire bundles or
 connect certain capped and
 stowed wires [retained
 actions from AD 2015-16-01,
 Amendment 39[dash]18226 (80
 FR 48013, August 11, 2015),
 for 1,618 airplanes].
Modify the instrument panels,  Up to 92 work-hours x           5,292  Up to $13,112...  Up to $20,926,752.
 install light assemblies,      $85 per hour = up to
 modify the wire bundles, and   $7,820.
 install a new circuit
 breaker (concurrent
 requirements) [retained
 actions from AD 2015-16-01,
 Amendment 39[dash]18226 (80
 FR 48013, August 11, 2015),
 for 1,596 airplanes].
Modify the instrument panels,  Up to 92 work-hours x           5,292  Up to $13,112...  Up to $288,464.
 install light assemblies,      $85 per hour = up to
 modify the wire bundles, and   $7,820.
 install a new circuit
 breaker (concurrent
 requirements) [retained
 actions from AD 2015-16-01,
 Amendment 39[dash]18226 (80
 FR 48013, August 11, 2015),
 for 22 airplanes].
----------------------------------------------------------------------------------------------------------------

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

[[Page 65929]]

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 part 39 of the Federal Aviation 
Regulations (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) 
2015-16-01, Amendment 39-18226 (80 FR 48013, August 11, 2015) and 
adding the following new AD:

2015-21-11 The Boeing Company: Amendment 39-18304; Docket No. FAA-
2015-4207; Directorate Identifier 2015-NM-123-AD.

(a) Effective Date

    This AD is effective November 12, 2015.

(b) Affected ADs

    This AD replaces AD 2015-16-01, Amendment 39-18226 (80 FR 48013, 
August 11, 2015).

(c) Applicability

    This AD applies to The Boeing Company airplanes, certificated in 
any category, as identified in paragraphs (c)(1) and (c)(2) of this 
AD.
    (1) Model 737-100, -200, -200C, -300,-400, and -500 series 
airplanes, as identified in Boeing Special Attention Service 
Bulletin 737-21-1164, Revision 2, dated August 23, 2013.
    (2) Model 737-600, -700, -700C, -800,-900, and -900ER series 
airplanes, as identified in Boeing Special Attention Service 
Bulletin 737-21-1165, Revision 3, dated July 16, 2014.

 (d) Subject

    Air Transport Association (ATA) of America Code 21, Air 
Conditioning.

(e) Unsafe Condition

    This AD was prompted by the report of a flightcrew not receiving 
an aural warning during a lack of cabin pressurization event. We are 
issuing this AD to prevent the loss of cabin altitude warning, which 
could delay flightcrew recognition of a lack of cabin 
pressurization, and could result in incapacitation of the flightcrew 
due to hypoxia (a lack of oxygen in the body), and consequent loss 
of control of the airplane.

(f) Compliance

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

(g) Retained Installation, With Removal of Limitation To Use Certain 
Service Information

    This paragraph restates the actions required by paragraph (g) of 
AD 2015-16-01, Amendment 39-18226 (80 FR 48013, August 11, 2015), 
with removal of the limitation to use certain service information 
from paragraph (g)(2) of this AD. Within 72 months after November 7, 
2012 (the effective date of AD 2012-19-11, Amendment 39-17206 (77 FR 
60296, October 3, 2012)), install a redundant cabin altitude 
pressure switch, replace the aural warning module (AWM) with a new 
or reworked AWM, and change certain wire bundles or connect certain 
capped and stowed wires, as applicable, in accordance with the 
Accomplishment Instructions of the applicable service information in 
paragraphs (g)(1) and (g)(2) of this AD; except as provided by 
paragraph (k)(1) of this AD.
    (1) Boeing Special Attention Service Bulletin 737-21-1164, 
Revision 1, dated May 17, 2012; or Boeing Special Attention Service 
Bulletin 737-21-1164, Revision 2, dated August 23, 2013 (for Model 
737-100, -200, -200C, -300, -400, and -500 series airplanes). As of 
September 15, 2015 (the effective date of AD 2015-16-01, Amendment 
39-18226 (80 FR 48013, August 11, 2015)), use Boeing Special 
Attention Service Bulletin 737-21-1164, Revision 2, dated August 23, 
2013, for the actions specified in paragraph (g) of this AD.
    (2) Boeing Special Attention Service Bulletin 737-21-1165, 
Revision 1, dated July 16, 2010, as revised by Boeing Special 
Attention Service Bulletin 737-21-1165, Revision 2, dated April 30, 
2012; or Boeing Special Attention Service Bulletin 737-21-1165, 
Revision 3, dated July 16, 2014 (for Model 737-600, -700, -700C, -
800, -900, and -900ER series airplanes).

(h) Retained Concurrent Actions, With No Changes

    This paragraph restates the concurrent actions required by 
paragraph (h) of AD 2015-16-01, Amendment 39-18226 (80 FR 48013, 
August 11, 2015), with no changes. For airplanes identified in 
Boeing Alert Service Bulletin 737-31A1325, dated January 11, 2010 
(for Model 737-100, -200, -200C, -300, -400, and -500 series 
airplanes); and Boeing Alert Service Bulletin 737-31A1332, Revision 
3, dated March 28, 2012 (for Model 737-600, -700, -700C, -800, -900, 
and -900ER series airplanes); except as provided by paragraph (i) of 
this AD: Before or concurrently with accomplishment of the actions 
specified in paragraph (g) of this AD, as applicable, modify the 
instrument panels, install light assemblies, modify the wire 
bundles, and install a new circuit breaker, in accordance with the 
Accomplishment Instructions of the applicable service information in 
paragraphs (h)(1) and (h)(2) of this AD; except as provided by 
paragraph (k)(2) of this AD.
    (1) The service information for Model 737-100, -200, -200C, -
300, -400, and -500 series airplanes as identified in paragraphs 
(h)(1)(i), (h)(1)(ii), and (h)(1)(iii), of this AD. As of September 
15, 2015 (the effective date of AD 2015-16-01, Amendment 39-18226 
(80 FR 48013, August 11, 2015)), use Boeing Alert Service Bulletin 
737-31A1325, Revision 2, dated June 5, 2014 (for Model 737-100, -
200, -200C, -300, -400, and -500 series airplanes), for the actions 
specified in paragraph (h) of this AD.
    (i) Boeing Alert Service Bulletin 737-31A1325, dated January 11, 
2010.
    (ii) Boeing Alert Service Bulletin 737-31A1325, Revision 1, 
dated July 5, 2012.
    (iii) Boeing Alert Service Bulletin 737-31A1325, Revision 2, 
dated June 5, 2014.
    (2) Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated 
March 28, 2012; or Boeing Alert Service Bulletin 737-31A1332, 
Revision 4, dated October 31, 2013 (for Model 737-600, -700, -700C, 
-800, -900, and -900ER series airplanes). As of September 15, 2015 
(the effective date of AD 2015-16-01, Amendment 39-18226 (80 FR 
48013, August 11, 2015)), use Boeing Alert Service Bulletin 737-
31A1332, Revision 4, dated October 31, 2013 (for Model 737-600, -
700, -700C, -800, -900, and -900ER series airplanes), for the 
actions specified in paragraph (h) of this AD.

(i) Retained Additional Concurrent Requirement, With No Changes

    This paragraph restates the concurrent actions required by 
paragraph (i) of AD 2015-16-01, Amendment 39-18226 (80 FR 48013, 
August 11, 2015), with no changes. For airplanes having variable 
numbers YA001 through YA008 inclusive, YA251, YA501 through YA508 
inclusive, and YC321 through YC325 inclusive: Before or concurrently 
with accomplishment of the actions specified in paragraph (g) of 
this AD, or within 18 months after September 15, 2015 (the effective 
date of AD 2015-16-01, Amendment 39-18226 (80 FR 48013, August

[[Page 65930]]

11, 2015)), whichever occurs later, modify the instrument panels, 
install light assemblies, modify the wire bundles, and install a new 
circuit breaker, in accordance with the Accomplishment Instructions 
of Boeing Alert Service Bulletin 737-31A1332, Revision 4, dated 
October 31, 2013.

(j) Retained Credit for Previous Actions, With Corrected Paragraph 
Reference

    (1) This paragraph restates the credit for previous actions 
stated in paragraph (i) of AD 2015-16-01, Amendment 39-18226 (80 FR 
48013, August 11, 2015), with corrected paragraph reference.
    (i) This paragraph provides credit for the actions required by 
paragraph (g) of AD 2015-16-01, Amendment 39-18226 (80 FR 48013, 
August 11, 2015), if those actions were performed before November 7, 
2012 (the effective date of AD 2012-19-11, Amendment 39-17206 (77 FR 
60296, October 3, 2012)), using Boeing Special Attention Service 
Bulletin 737-21-1165, Revision 1, dated July 16, 2010, which was 
incorporated by reference in AD 2012-19-11.
    (ii) For airplanes identified in Boeing Alert Service Bulletin 
737-31A1332, Revision 1, dated June 24, 2010; except airplanes 
having variable numbers YA001 through YA019 inclusive, YA201 through 
YA203 inclusive, YA231 through YA242 inclusive, YA251, YA252, YA271, 
YA272, YA301, YA302, YA311, YA312, YA501 through YA508 inclusive, 
YA541, YA701, YA702, YC001 through YC007 inclusive, YC051, YC052, 
YC101, YC102, YC111, YC121, YC301, YC302, YC321 through YC330 
inclusive, YC381, YC401 through YC403 inclusive, YC501, YC502, and 
YE001 through YE003 inclusive: This paragraph provides credit for 
the actions required by paragraph (h) of this AD, if those actions 
were performed before September 15, 2015 (the effective date of AD 
2015-16-01, Amendment 39-18226 (80 FR 48013, August 11, 2015)), 
using Boeing Alert Service Bulletin 737-31A1332, Revision 1, dated 
June 24, 2010, which was incorporated by reference in AD 2012-19-11, 
Amendment 39-17206 (77 FR 60296, October 3, 2012).
    (iii) For airplanes identified in Boeing Alert Service Bulletin 
737-31A1332, Revision 2, dated August 18, 2011; except airplanes 
identified in paragraph (j)(1)(iv) of this AD and airplanes having 
variable numbers YA001 through YA019 inclusive, YA201 through YA203 
inclusive, YA231through YA242 inclusive, YA251, YA252, YA271, YA272, 
YA301, YA302, YA311, YA312, YA501 through YA508 inclusive, YA541, 
YA701, YA702, YC001 through YC007 inclusive, YC051, YC052, YC101, 
YC102, YC111, YC121, YC301, YC302, YC321 through YC330 inclusive, 
YC381, YC401 through YC403 inclusive, YC501, YC502, and YE001 
through YE003 inclusive: This paragraph provides credit for the 
actions required by paragraph (h) of this AD, if those actions were 
performed before September 15, 2015 (the effective date of AD 2015-
16-01, Amendment 39-18226 (80 FR 48013, August 11, 2015)), using 
Boeing Alert Service Bulletin 737-31A1332, Revision 2, dated August 
18, 2011, which was incorporated by reference in AD 2012-19-11, 
Amendment 39-17206 (77 FR 60296, October 3, 2012).
    (iv) For Group 21, Configuration 2 airplanes identified in 
Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated March 
28, 2012: This paragraph provides credit for the actions required by 
paragraph (h) of this AD, if those actions were performed before 
September 15, 2015 (the effective date of AD 2015-16-01, Amendment 
39-18226 (80 FR 48013, August 11, 2015)), using Boeing Alert Service 
Bulletin 737-31A1332, Revision 2, dated August 18, 2011, which was 
incorporated by reference in AD 2012-19-11, Amendment 39-17206 (77 
FR 60296, October 3, 2012); and provided that the actions specified 
in Boeing Service Bulletin 737-21-1171, dated February 12, 2009 
(which is not incorporated by reference in this AD), were 
accomplished prior to or concurrently with the actions specified in 
Boeing Alert Service Bulletin 737-31A1332, Revision 2, dated August 
18, 2011.
    (2) This paragraph provides credit for the actions specified in 
paragraph (h) of this AD, if those actions were performed before 
September 15, 2015 (the effective date of AD 2015-16-01, Amendment 
39-18226 (80 FR 48013, August 11, 2015)), using the service 
information identified in paragraph (j)(2)(i) or (j)(2)(ii) of this 
AD.
    (i) Boeing Alert Service Bulletin 737-31A1325, dated January 11, 
2010, which was incorporated by reference in AD 2012-19-11, 
Amendment 39-17206 (77 FR 60296, October 3, 2012).
    (ii) Boeing Alert Service Bulletin 737-31A1325, Revision 1, 
dated July 5, 2012, which is not incorporated by reference in this 
AD.

(k) Retained Exceptions to the Service Information, With No Changes

    This paragraph restates the actions required by paragraph (k) of 
AD 2015-16-01, Amendment 39-18226 (80 FR 48013, August 11, 2015), 
with no changes.
    (1) Where Boeing Special Attention Service Bulletin 737-21-1164, 
Revision 2, dated August 23, 2013, specifies to contact Boeing for 
instructions: Before further flight, repair using a method approved 
in accordance with the procedures specified in paragraph (l) of this 
AD.
    (2) Where Boeing Alert Service Bulletin 737-31A1325, Revision 2, 
dated June 5, 2014, specifies to contact Boeing for instructions: 
Before further flight, repair using a method approved in accordance 
with the procedures specified in paragraph (l) of this AD.

(l) 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 (m)(1) of this AD. 
Information may be emailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.
    (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 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. For a repair method to be approved, the repair must 
meet the certification basis of the airplane, and the approval must 
specifically refer to this AD.
    (4) AMOCs approved for AD 2012-19-11, Amendment 39-17206 (77 FR 
60296, October 3, 2012), are approved as AMOCs for the corresponding 
provisions of this AD.

(m) Related Information

    (1) For more information about this AD, contact Francis Smith, 
Aerospace Engineer, Cabin Safety and Environmental Systems Branch, 
ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind 
Avenue SW., Renton, WA 98057-3356; phone: 425-917-6596; fax: 425-
917-6590; email: Francis.Smith@faa.gov.
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (n)(5) and (n)(6) of this AD.

(n) 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 
September 15, 2015 (80 FR 48013, August 11, 2015).
    (i) Boeing Alert Service Bulletin 737-31A1325, Revision 2, dated 
June 5, 2014.
    (ii) Boeing Alert Service Bulletin 737-31A1332, Revision 4, 
dated October 31, 2013.
    (iii) Boeing Special Attention Service Bulletin 737-21-1164, 
Revision 2, dated August 23, 2013.
    (iv) Boeing Special Attention Service Bulletin 737-21-1165, 
Revision 3, dated July 16, 2014.
    (4) The following service information was approved for IBR on 
November 7, 2012 (77 FR 60296, October 3, 2012).
    (i) Boeing Alert Service Bulletin 737-31A1325, dated January 11, 
2010.
    (ii) Boeing Alert Service Bulletin 737-31A1332, Revision 1, 
dated June 24, 2010.
    (iii) Boeing Alert Service Bulletin 737-31A1332, Revision 2, 
dated August 18, 2011.
    (iv) Boeing Alert Service Bulletin 737-31A1332, Revision 3, 
dated March 28, 2012.
    (v) Boeing Special Attention Service Bulletin 737-21-1164, 
Revision 1, dated May 17, 2012.
    (vi) Boeing Special Attention Service Bulletin 737-21-1165, 
Revision 1, dated July 16, 2010.
    (vii) Boeing Special Attention Service Bulletin 737-21-1165, 
Revision 2, dated April 30, 2012.

[[Page 65931]]

    (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.
    (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 October 16, 2015.
Jeffrey E. Duven,
Manager,Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2015-27190 Filed 10-27-15; 8:45 am]
 BILLING CODE 4910-13-P