[Federal Register Volume 78, Number 20 (Wednesday, January 30, 2013)]
[Rules and Regulations]
[Pages 6202-6206]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2013-01720]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-0258; Directorate Identifier 2010-NM-191-AD; 
Amendment 39-17326; AD 2013-02-05]
RIN 2120-AA64


Airworthiness Directives; the Boeing Company

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER 
series airplanes. This AD requires, for certain airplanes, installing 
two warning level indicator lights on each of the P1-3 and P3-1 
instrument panels in the flight compartment. This AD also requires, for 
certain airplanes, replacing the existing P5-16 and P5-10 panels; and, 
for certain airplanes, replacing the basic P5-16 panel with a high 
altitude landing P5-16 panel. Additionally, this AD requires revising 
the airplane flight manual to remove certain requirements of previous 
AD actions, and to advise the flightcrew of certain changes. This AD 
was prompted by a design change in the cabin altitude warning system 
that would address the identified unsafe condition. We are issuing this 
AD to prevent failure of the flightcrew to recognize and react to a 
valid cabin altitude warning horn, which 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 March 6, 2013.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of March 6, 
2013.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in the AD as of November 7, 
2012 (77 FR 60296, October 3, 2012).

ADDRESSES: For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-
544-5000, extension 1, fax 206-766-5680; Internet https://www.myboeingfleet.com. You may review copies of the referenced service 
information at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue SW., Renton, Washington. For information on the availability of 
this material at the FAA, call 425-227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov; 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 Document 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: Jeffrey W. Palmer, Aerospace Engineer, 
Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft 
Certification Office, 1601 Lind Avenue SW., Renton, Washington 98057-
3356; phone: (425) 917-6472; fax: (425) 917-6590; email: 
[email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a supplemental notice of proposed rulemaking (SNPRM) to

[[Page 6203]]

amend 14 CFR part 39 to include an AD that would apply to the specified 
products. The SNPRM published in the Federal Register on August 27, 
2012 (77 FR 51724). The original NPRM (76 FR 16579, March 24, 2011) 
proposed to require, for certain airplanes, installing two warning 
level indicator lights on each of the P1-3 and P3-1 instrument panels 
in the flight compartment. The original NPRM also proposed to require 
revising the airplane flight manual (AFM) to remove certain 
requirements of previous AD actions, and to advise the flightcrew of 
the following changes: revised non-normal procedures to use when a 
cabin altitude warning or rapid depressurization occurs, and revised 
cabin pressurization procedures for normal operations. The SNPRM 
proposed to add airplanes to the applicability; add airplanes to the 
installation requirement, including, for certain airplanes, replacing 
the existing P5-16 and P5-10 panels; and, for certain airplanes, 
replacing the basic P5-16 panel with a high altitude landing P5-16 
panel.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the proposal 
(77 FR 51724, August 27, 2012) and the FAA's response to each comment.

Request To Exclude Airplanes With Certain Variable Numbers From 
Paragraph (i) of the SNPRM (77 FR 51724, August 27, 2012)

    Boeing asked that paragraph (i) of the SNPRM (77 FR 51724, August 
27, 2012) be changed to exclude airplanes with certain variable 
numbers, instead of excluding Groups 24, 25, and 27 through 33 
airplanes identified in Boeing Alert Service Bulletin 737-31A1332, 
Revision 3, dated March 28, 2012. Boeing stated that excluding credit 
for Groups 24, 25, and 27 through 33 airplanes excludes credit for 
approximately 655 Model 737NG airplanes on which the actions specified 
in Boeing Alert Service Bulletin 737-31A1332, Revision 1, dated June 
24, 2010; or Revision 2, dated August 18, 2011; might have been 
accomplished previously. Boeing also noted that there is a conflict 
between these service bulletin revisions for the Model 737NG airplanes 
having line numbers 1 through 740 inclusive and included in the 
applicability specified in AD 2009-16-07, Amendment 39-15990 (74 FR 
41607, August 18, 2009), which was referred to under ``Related 
Rulemaking'' in the SNPRM. Boeing stated that only 87 airplanes having 
certain variable numbers have an actual conflict. Boeing also stated 
that the overlap between groups may be isolated to airplanes on which 
certain actions in the referenced service information were done, and if 
those airplanes have not had the overlap between groups, credit should 
be given for accomplishing this service information.
    We agree that replacing Groups 24, 25, and 27 through 33 airplanes 
identified in Boeing Alert Service Bulletin 737-31A1332, Revision 3, 
dated March 28, 2012, with the specified airplane variable numbers more 
clearly identifies the airplanes that should be excluded in paragraphs 
(i)(1) and (i)(2) of this AD. This change excludes a smaller group of 
airplanes from those credit paragraphs. We have changed paragraphs 
(i)(1) and (i)(2) of this AD accordingly.
    We do not agree with giving credit for airplanes on which certain 
actions have been done and that might not overlap between groups. Doing 
so would require additional research into the detailed maintenance 
history of each affected airplane, which would unduly delay issuance of 
this AD. Operators of the affected airplanes may request approval of an 
alternative method of compliance (AMOC) under the provisions of 
paragraph (m) of this AD if substantiating data are provided. We have 
made no change to the AD in this regard.

Request To Correct AFM Reference to Target Speed

    Delta Airlines (DAL) asked that the target speed identified in 
paragraph (j)(2)(iv) of the SNPRM (77 FR 51724, August 27, 2012) be 
corrected. DAL stated that if an emergency descent is required, the 
target speed in the SNPRM is given as ``MO/MMO''; however, in the 
original NPRM (76 FR 16579, March 24, 2011), the correct target speed 
was given as ``VMO/MMO.'' DAL noted that the current target speed of 
``MO/MMO'' is incorrect and should be changed back to ``VMO/MMO.''
    We agree that the published version of the target speed identified 
in paragraph (j)(2)(iv) of the SNPRM (77 FR 51724, August 27, 2012) is 
incorrect. The correct target speed, ``VMO/MMO,'' is specified in 
paragraph (j)(2)(iv) of this AD.

Request To Include Revised Service Information

    United Airlines (UA) asked that the SNPRM (77 FR 51724, August 27, 
2012) include Revision 4 of Boeing Alert Service Bulletin 737-31A1332. 
UA stated that Boeing is in the process of revising Boeing Alert 
Service Bulletin 737-31A1332, Revision 3, dated March 28, 2012, and 
added that it has reviewed the preliminary release of Revision 4.
    We do not agree to include Revision 4 of Boeing Alert Service 
Bulletin 737-31A1332 in this AD because it has not yet been issued. We 
do not consider that delaying this action until after the manufacturer 
revises the service bulletin is warranted. We also cannot use the 
phrase, ``or later FAA-approved revisions,'' in an AD when referring to 
the service document because doing so violates Office of the Federal 
Register (OFR) regulations for approval of materials ``incorporated by 
reference'' in rules.
    To allow operators to use later revisions of the referenced 
document (issued after publication of the AD), either we must revise 
the AD to reference specific later revisions, or operators must request 
approval to use later revisions as an AMOC with this AD under the 
provisions of paragraph (m) of this AD. However, once Revision 4 of 
Boeing Alert Service Bulletin 737-31A1332 is released, we will consider 
issuing a global AMOC to allow operators to use that revision for 
accomplishing the requirements of this AD. We have not changed the AD 
in this regard.

Request To Clarify Component Service Bulletin References

    DAL asked that the final rule clarify that the rework specified in 
the BAE Systems component service bulletins identified in certain notes 
in Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated March 
28, 2012, does not have to be done by using every component service 
bulletin listed. DAL added that by specifying only those component 
service bulletins applicable to the dash number part being reworked, 
the intent of the notes would not have to be interpreted.
    We agree to provide clarification. Operators may refer to the part 
numbers identified in Section 1.A., ``Planning Information--
Effectivity,'' of the service information specified in note rows (a) 
and (b) of Figure 1 and note rows (a) and (b) of Figure 2 of Boeing 
Alert Service Bulletin 737-31A1332, Revision 3, dated March 28, 2012, 
to determine which service information may be used as guidance for 
rework of a given panel. We have added a new Note 1 to paragraph (g) of 
this AD (and reidentified subsequent notes) to provide clarification.

Request To Add Repair Language to AMOC Paragraph

    Boeing asked that repair approval by a Boeing Commercial Airplanes

[[Page 6204]]

Organization Designation Authorization (ODA) be added to the AMOC 
language in paragraph (m) of the SNPRM (77 FR 51724, August 27, 2012). 
Boeing stated that this delegation of authority to approve an AMOC for 
any repair should be included in the AD.
    We agree with the commenter for the reason provided. We have added 
a new paragraph (m)(3) to this AD to include the standard ODA repair 
delegation of authority language.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
the AD with the changes described previously. We determined that these 
changes will not increase the economic burden on any operator or 
increase the scope of the AD.

Costs of Compliance

    We estimate that this AD affects 870 airplanes of U.S. registry. 
The following table provides the estimated costs for U.S. operators to 
comply with this AD.

                                                                 Table--Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                     Number of U.S.-
              Action                    Work hours        Average labor          Parts           Cost per product       registered        Fleet cost
                                                          rate per hour                                                 airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
Installation of warning indicator  Between 34 and 84...             $85  Between $2,172 and    Between $5,062 and               870  Between $4,403,940
 lights.                                                                  $5,238.               $12,378.                              and $10,768,860.
AFM revision.....................  2...................              85  $0..................  $170................             870  $147,900.
--------------------------------------------------------------------------------------------------------------------------------------------------------

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 adding the following new airworthiness 
directive (AD):

    2013-02-05 The Boeing Company: Amendment 39-17326; Docket No. 
FAA-2011-0258; Directorate Identifier 2010-NM-191-AD.

(a) Effective Date

    This airworthiness directive (AD) is effective March 6, 2013.

(b) Affected ADs

    This AD affects the ADs identified in paragraphs (b)(1), (b)(2), 
and (b)(3) of this AD. This AD does not supersede the requirements 
of these ADs.
    (1) AD 2003-14-08, Amendment 39-13227 (68 FR 41519, July 14, 
2003).
    (2) AD 2006-13-13, Amendment 39-14666 (71 FR 35781, June 22, 
2006; corrected July 3, 2006 (71 FR 37980)).
    (3) AD 2008-23-07, Amendment 39-15728 (73 FR 66512, November 10, 
2008).

(c) Applicability

    This AD applies to The Boeing Company Model 737-600, -700, -
700C, -800, -900, and -900ER series airplanes, certificated in any 
category, as identified in Boeing Alert Service Bulletin 737-
31A1332, Revision 3, dated March 28, 2012.

(d) Subject

    Air Transport Association (ATA) of America Code 31, Instruments.

(e) Unsafe Condition

    This AD was prompted by a design change in the cabin altitude 
warning system that would address the identified unsafe condition. 
We are issuing this AD to prevent failure of the flightcrew to 
recognize and react to a valid cabin altitude warning horn, which 
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) Installation

    Within 36 months after the effective date of this AD: Install 
two warning level indicator lights on each of the P1-3 and P3-1 
instrument panels in the flight compartment, and, as applicable, 
replace the existing P5-16 and P5-10 panels, in accordance with the 
Accomplishment Instructions of Boeing Alert Service Bulletin 737-
31A1332, Revision 3, dated March 28, 2012.

    Note 1 to paragraph (g) of this AD: Note rows (a) and (b) of 
Figures 1 and 2 of Boeing Alert Service Bulletin 737-31A1332, 
Revision 3, dated March 28, 2012, provide additional guidance for 
reworking the P1-3 and P3-1 panels to new part numbers. Section 
1.A., ``Planning Information--Effectivity,'' of the documents 
specified in those note rows identify part numbers to which those 
documents apply.


[[Page 6205]]



(h) Concurrent Requirements

    For Group 21, Configuration 2 airplanes, as identified in Boeing 
Alert Service Bulletin 737-31A1332, Revision 3, dated March 28, 
2012: Prior to or concurrently with doing the actions required by 
paragraph (g) of this AD, replace the basic P5-16 panel with a high 
altitude landing P5-16 panel, in accordance with the Accomplishment 
Instructions of Boeing Service Bulletin 737-21-1171, dated February 
12, 2009.

(i) Credit for Previous Actions

    (1) For Group 1 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 (g) of this 
AD, if those actions were performed before the effective date of 
this AD using Boeing Alert Service Bulletin 737-31A1332, Revision 1, 
dated June 24, 2010.
    (2) For airplanes identified in Boeing Alert Service Bulletin 
737-31A1332, Revision 2, dated August 18, 2011; except airplanes 
identified in paragraph (i)(3) of this AD and 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 (g) of this AD, if those actions 
were performed before the effective date of this AD using Boeing 
Alert Service Bulletin 737-31A1332, Revision 2, dated August 18, 
2011.
    (3) 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 (g) of this AD, if those actions were performed before the 
effective date of this AD using Boeing Alert Service Bulletin 737-
31A1332, Revision 2, dated August 18, 2011, and provided that the 
actions specified in Boeing Service Bulletin 737-21-1171, dated 
February 12, 2009, were accomplished prior to or concurrently with 
the actions specified in Boeing Alert Service Bulletin 737-31A1332, 
Revision 2, dated August 18, 2011.

(j) Airplane Flight Manual (AFM) Revisions

    Within 36 months after the effective date of this AD, and after 
doing the installation required by paragraph (g) of this AD, do the 
actions specified in paragraphs (j)(1), (j)(2), and (j)(3) of this 
AD.
    (1) Revise the Limitations Section of the applicable Boeing 737 
AFM by doing the following action: Delete the ``CABIN ALTITUDE 
WARNING TAKEOFF BRIEFING'' added by AD 2008-23-07, Amendment 39-
15728 (73 FR 66512, November 10, 2008).
    (2) Revise the Non-Normal Procedures Section of the applicable 
Boeing 737 AFM by doing the actions specified in paragraphs 
(j)(2)(i), (j)(2)(ii), (j)(2)(iii), and (j)(2)(iv) of this AD.
    (i) Delete the procedure titled ``WARNING HORN--CABIN ALTITUDE 
OR CONFIGURATION RECALL'' added by AD 2006-13-13, Amendment 39-14666 
(71 FR 35781, June 22, 2006; corrected July 3, 2006 (71 FR 37980). 
If the title of this procedure has been changed according to FAA 
Alternative Method of Compliance (AMOC) Letter 130S-09-134a, dated 
April 28, 2009, delete the procedure that was approved according to 
that AMOC letter.
    (ii) Delete the procedure titled ``CABIN ALTITUDE WARNING OR 
RAPID DEPRESSURIZATION'' added by AD 2003-14-08, Amendment 39-13227 
(68 FR 41519, July 14, 2003).
    (iii) If the procedure titled ``CABIN ALTITUDE (Airplanes with 
the CABIN ALTITUDE lights installed)'' is currently contained in the 
applicable Boeing 737 AFM, delete the procedure titled ``CABIN 
ALTITUDE (Airplanes with the CABIN ALTITUDE lights installed).''
    (iv) Add the following statement. This may be done by inserting 
a copy of this AD into the applicable AFM.

Cabin Altitude Warning or Rapid Depressurization (Required by AD 2013-02-
                                   05)
     Condition: The Cabin Altitude warning light illuminates or the
     intermittent warning horn sounds in flight above 10,000 ft MSL.
------------------------------------------------------------------------
 
------------------------------------------------------------------------
Recall:
    Oxygen Masks and Regulators.....  ON, 100%
    Crew Communications.............  ESTABLISH
Reference:
    Pressurization Mode Selector....  MANUAL
    Outflow Valve Switch............  CLOSE
If Cabin Altitude is uncontrollable:
         Emergency Descent (If        INITIATE
          Required).
         Passenger Oxygen Switch....  ON
         Thrust Levers..............  CLOSE
         Speed Brakes...............  FLIGHT DETENT
         Target Speed...............  VMO/MMO
------------------------------------------------------------------------


    Note 2 to paragraphs (j)(2)(iv) and (j)(3)(ii) of this AD:  When 
statements identical to those specified in paragraphs (j)(2)(iv) and 
(j)(3)(ii) of this AD have been included in the general revisions of 
the AFM, the general revisions may be inserted into the AFM, and the 
copies of this AD may be removed from the AFM.

    (3) Revise the Normal Procedures Section of the applicable 
Boeing 737 AFM by doing the actions specified in paragraphs 
(j)(3)(i) and (j)(3)(ii) of this AD.
    (i) Delete the procedure titled ``CABIN ALTITUDE WARNING TAKEOFF 
BRIEFING'' added by AD 2008-23-07, Amendment 39-15728 (73 FR 66512, 
November 10, 2008).
    (ii) Add the following statement. This may be done by inserting 
a copy of this AD into the applicable AFM.
    For normal operations, the pressurization mode selector should 
be in AUTO prior to takeoff. (Required by AD 2013-02-05)

(k) Terminating Action for Affected ADs

    Accomplishing the requirements of this AD terminates the 
requirements of the ADs identified in paragraphs (k)(1), (k)(2), and 
(k)(3) of this AD for only the airplanes identified in paragraph (c) 
of this AD.
    (1) AD 2003-14-08, Amendment 39-13227 (68 FR 41519, July 14, 
2003): The requirements specified in Table 1 and Figure 1 of that 
AD.
    (2) AD 2006-13-13, Amendment 39-14666 (71 FR 35781, June 22, 
2006; corrected July 3, 2006 (71 FR 37980): All requirements of that 
AD.
    (3) AD 2008-23-07, Amendment 39-15728 (73 FR 66512, November 10, 
2008): All requirements of that AD.

(l) Special Flight Permits

    Special flight permits, as described in Section 21.197 and 
Section 21.199 of the Federal Aviation Regulations (14 CFR 21.197 
and 21.199), are not allowed.

(m) 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,

[[Page 6206]]

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 the Related Information section 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 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.

(n) Related Information

    (1) For more information about this AD, contact Jeffrey W. 
Palmer, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, 
FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., 
Renton, Washington 98057-3356; phone: (425) 917-6472; fax: (425) 
917-6590; email: [email protected].
    (2) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 
206-544-5000, extension 1, fax 206-766-5680; Internet https://www.myboeingfleet.com. You may review copies of the referenced 
service information at the FAA, Transport Airplane Directorate, 1601 
Lind Avenue SW., Renton, Washington. For information on the 
availability of this material at the FAA, call 425-227-1221.

(o) 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 
March 6, 2013.
    (i) Boeing Service Bulletin 737-21-1171, dated February 12, 
2009.
    (ii) Reserved.
    (4) The following service information was approved for IBR on 
November 7, 2012 (77 FR 60296, October 3, 2012).
    (i) Boeing Alert Service Bulletin 737-31A1332, Revision 1, dated 
June 24, 2010.
    (ii) Boeing Alert Service Bulletin 737-31A1332, Revision 2, 
dated August 18, 2011.
    (iii) Boeing Alert Service Bulletin 737-31A1332, Revision 3, 
dated March 28, 2012.
    (4) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 
206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com.
    (5) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (6) 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 January 9, 2013.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2013-01720 Filed 1-29-13; 8:45 am]
BILLING CODE 4910-13-P