Document ID: FAA-2012-1319-0001
Agency: faa
Document Type: Proposed Rule
Title: Airworthiness Directives: The Boeing Company Airplanes
Posted Date: 2013-01-30T05:00Z

[Federal Register Volume 78, Number 20 (Wednesday, January 30, 2013)]
[Proposed Rules]
[Pages 6247-6251]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-01953]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-1319; Directorate Identifier 2012-NM-179-AD]
RIN 2120-AA64

Airworthiness Directives; the Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to revise an existing airworthiness directive (AD) 
that applies to all The Boeing Company Model 757 airplanes. The 
existing AD currently requires revising the maintenance program by 
incorporating new and revised fuel tank system limitations in the 
Airworthiness Limitations (AWLs) section of the Instructions for 
Continued Airworthiness; and requires the initial inspection of certain 
repetitive AWL inspections to phase-in those inspections, and repair if 
necessary. Since we issued that AD, we have found errors in paragraph 
references in the existing AD. This proposed AD would revise those 
paragraph references to refer to the correct paragraphs. We are 
proposing this AD to prevent the potential for ignition sources inside 
fuel tanks caused by latent failures, alterations, repairs, or 
maintenance actions, which in combination with flammable fuel vapors, 
could result in a

[[Page 6248]]

fuel tank explosion and consequent loss of the airplane.

DATES: We must receive comments on this proposed AD by March 18, 2013.

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: Deliver to Mail address above 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 review copies of the 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.

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 proposed 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: Kevin Nguyen, Aerospace Engineer, 
Propulsion Branch, ANM-140S, FAA, Seattle Aircraft Certification 
Office, 1601 Lind Avenue SW., Renton, Washington 98057-3356; phone: 
425-917-6501; fax: 425-917-6590; email: kevin.nguyen@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2012-1319; 
Directorate Identifier 2012-NM-179-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed 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 proposed AD.

Discussion

    On June 6, 2012, we issued AD 2012-12-15, Amendment 39-17095 (77 FR 
42964, July 23, 2012), for all The Boeing Company Model 757 airplanes. 
That AD superseded AD 2008-10-11, Amendment 39-15517 (73 FR 25974, May 
8, 2008). AD 2012-12-15 requires revising the maintenance program by 
incorporating new and revised fuel tank system limitations in the 
Airworthiness Limitations (AWLs) section of the Instructions for 
Continued Airworthiness to satisfy Special Federal Aviation Regulation 
No. 88 requirements; and requires the initial inspection of certain 
repetitive AWL inspections to phase-in those inspections, and repair if 
necessary. That AD resulted from a report that an AWL required by a 
previous AD must be revised. We issued that AD to prevent the potential 
for ignition sources inside fuel tanks caused by latent failures, 
alterations, repairs, or maintenance actions, which in combination with 
flammable fuel vapors, could result in a fuel tank explosion and 
consequent loss of the airplane.

Actions Since Existing AD Was Issued

    Since we issued AD 2012-12-15, Amendment 39-17095 (77 FR 42964, 
July 23, 2012), we have found errors in paragraph references in the 
existing AD. The second sentence in paragraph (h)(1) of the existing AD 
refers to paragraph (n) of that AD, which is a compliance time for AWL 
No. 28-AWL-26. The correct reference should be to paragraph (l) of that 
AD, which is a compliance time for AWL No. 28-AWL-03. The last sentence 
in paragraph (l) of the existing AD refers to paragraph (h)(2) of that 
AD, which is a definition of a detailed inspection. The correct 
reference should be to paragraph (h)(1)(ii) of that AD, which 
references a specific AWL and compliance time.

FAA's Determination

    We are proposing 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.

Proposed AD Requirements

    This proposed AD would retain all requirements of AD 2012-12-15, 
Amendment 39-17095 (77 FR 42964, July 23, 2012). This proposed AD would 
revise certain paragraph references.

Costs of Compliance

    We estimate that this proposed AD affects 639 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                               Cost per         Cost on U.S.
             Action                    Labor cost           Parts cost          product           operators
----------------------------------------------------------------------------------------------------------------
AWLs revisions [retained actions  9 work-hours x $85   None...............            $765              $488,835
 from existing AD (AD 2012-12-     per hour = $765.
 15, Amendment 39-17095 (77 FR
 42964, July 23, 2012))].
Inspections [retained actions     8 work-hours x $85   None...............             680               434,520
 from existing AD (AD 2012-12-     per hour = $680.
 15, Amendment 39-17095 (77 FR
 42964, July 23, 2012))].
----------------------------------------------------------------------------------------------------------------

    The new requirements of this proposed AD add no additional economic 
burden.

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,

[[Page 6249]]

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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 the proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the 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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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 AD:

The Boeing Company: Docket No. FAA-2012-1319; Directorate Identifier 
2012-NM-179-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by March 18, 
2013.

(b) Affected ADs

    This AD revises AD 2012-12-15, Amendment 39-17095 (77 FR 42964, 
July 23, 2012). Certain requirements of this AD terminate certain 
requirements of AD 2008-11-07, Amendment 39-15529 (73 FR 30755, May 
29, 2008); AD 2008-06-03, Amendment 39-15415 (73 FR 13081, March 12, 
2008); and AD 2009-06-20, Amendment 39-15857 (74 FR 12236, March 24, 
2009).

(c) Applicability

    (1) This AD applies to all The Boeing Company Model 757-200, -
00PF, -200CB, and -300 series airplanes, certificated in any 
category.
    (2) This AD requires revisions to certain operator maintenance 
documents to include new actions (e.g., inspections) and/or critical 
design configuration control limitations (CDCCLs). Compliance with 
these actions and/or CDCCLs is required by 14 CFR 91.403(c). For 
airplanes that have been previously modified, altered, or repaired 
in the areas addressed by these inspections, the operator may not be 
able to accomplish the actions described in the revisions. In this 
situation, to comply with 14 CFR 91.403(c), the operator must 
request approval of an alternative method of compliance (AMOC) 
according to paragraph (s) of this AD. The request should include a 
description of changes to the required actions that will ensure the 
continued operational safety of the airplane.

(d) Subject

    Joint Aircraft System Component (JASC)/Air Transport Association 
(ATA) of America Code 28: Fuel.

(e) Unsafe Condition

    This AD results from a design review of the fuel tank systems. 
The Federal Aviation Administration is issuing this AD to prevent 
the potential for ignition sources inside fuel tanks caused by 
latent failures, alterations, repairs, or maintenance actions, 
which, in combination with flammable fuel vapors, could result in a 
fuel tank explosion and consequent loss of the airplane.

(f) Compliance

    You are responsible for having the actions required by this AD 
performed within the compliance times specified, unless the actions 
have already been done.

(g) Retained Revision of Airworthiness Limitations (AWLs) Section

    This paragraph restates the requirements of paragraph (g) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). Before 
December 16, 2008, revise the AWLs section of the Instructions for 
Continued Airworthiness (ICA) by incorporating the information in 
the subsections specified in paragraphs (g)(1) through (g)(3) of 
this AD into the maintenance planning data (MPD) document; except 
that the initial inspections specified in table 1 to paragraph 
(h)(1) of this AD must be done at the compliance times specified in 
table 1 to paragraph (h)(1) of this AD. Accomplishing the 
requirements of paragraph (k) of this AD terminates the requirements 
of this paragraph.
    (1) Subsection E, ``AIRWORTHINESS LIMITATIONS--FUEL SYSTEMS,'' 
of Boeing Temporary Revision (TR) 09-008, dated March 2008, to 
Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of the Boeing 757 MPD Document, 
D622N001-9.
    (2) Subsection F, ``PAGE FORMAT: SYSTEMS AIRWORTHINESS 
LIMITATIONS,'' of Boeing TR 09-008, dated March 2008, to Section 9, 
``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9.
    (3) Subsection G, ``AIRWORTHINESS LIMITATIONS--FUEL SYSTEM 
AWLs,'' AWLs No. 28-AWL-01 through No. 28-AWL-24 inclusive, of 
Boeing TR 09-008, dated March 2008, to Section 9, ``Airworthiness 
Limitations (AWLs) and Certification Maintenance Requirements 
(CMRs),'' of the Boeing 757 MPD Document, D622N001-9. As an optional 
action, AWLs No. 28-AWL-25 and No. 28-AWL-26, as identified in 
Subsection G of Boeing TR 09-008, dated March 2008, to Section 9, 
``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9, 
also may be incorporated into the AWLs section of the ICA.

(h) Retained Initial Inspections and Repair, With Revised Service 
Information

    (1) This paragraph restates the requirements of paragraph (h) of 
AD 2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012), with 
a revised paragraph reference. Do the inspections specified in table 
1 to paragraph (h)(1) of this AD at the compliance time identified 
in table 1 to paragraph (h)(1) of this AD, and repair any 
discrepancy, in accordance with Subsection G of Boeing TR 09-008, 
dated March 2008, to Section 9, ``Airworthiness Limitations (AWLs) 
and Certification Maintenance Requirements (CMRs),'' of the Boeing 
757 MPD Document, D622N001-9; Section 9, ``Airworthiness Limitations 
(AWLs) and Certification Maintenance Requirements (CMRs),'' of the 
Boeing 757 MPD Document, D622N001-9, Revision December 2008; Boeing 
TR 09-010, dated July 2010, to Section 9, ``Airworthiness 
Limitations (AWLs) and Certification Maintenance Requirements 
(CMRs),'' of Boeing 757 MPD Document, D622N001-9; or Boeing TR 09-
011, dated November 2010, to Section 9, ``Airworthiness Limitations 
(AWLs) and Certification Maintenance Requirements (CMRs),'' of the 
Boeing 757 MPD Document, D622N001-9; except as required by paragraph 
(l) of this AD. The repair must be done before further flight. 
Accomplishing the inspections identified in table 1 to paragraph 
(h)(1) of this AD as part of a maintenance program before the 
applicable compliance time specified in table 1 to paragraph (h)(1) 
of this AD constitutes compliance with the requirements of this 
paragraph. As of 6 months after August 27, 2012 (the effective date 
of AD 2012-12-15), only Section 9,

[[Page 6250]]

``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9, 
Revision December 2008; Boeing TR 09-010, dated July 2010, to 
Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of Boeing 757 MPD Document, 
D622N001-9; or Boeing TR 09-011, dated November 2010, to Section 9, 
``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9; 
may be used.

                           Table 1 to Paragraph (h)(1) of This AD--Initial Inspections
----------------------------------------------------------------------------------------------------------------
                                                                    Compliance time (whichever occurs later)
              AWL No.                       Description       --------------------------------------------------
                                                                       Threshold               Grace period
----------------------------------------------------------------------------------------------------------------
(i) 28-AWL-01......................  A detailed inspection of  Within 120 months since   Within 72 months after
                                      external wires over the   the date of issuance of   June 12, 2008 (the
                                      center fuel tank for      the original standard     effective date of AD
                                      damaged clamps, wire      airworthiness             2008-10-11, Amendment
                                      chafing, and wire         certificate or the date   39[dash]15517 (73 FR
                                      bundles in contact with   of issuance of the        25974, May 8, 2008)).
                                      the surface of the        original export
                                      center fuel tank.         certificate of
                                                                airworthiness.
(ii) 28-AWL-03.....................  A special detailed        Within 120 months since   Within 24 months after
                                      inspection of the         the date of issuance of   June 12, 2008 (the
                                      lightning shield to       the original standard     effective date of AD
                                      ground termination on     airworthiness             2008-10-11, Amendment
                                      the out-of-tank fuel      certificate or the date   39[dash]15517 (73 FR
                                      quantity indicating       of issuance of the        25974, May 8, 2008)).
                                      system to verify          original export
                                      functional integrity.     certificate of
                                                                airworthiness.
(iii) 28[dash]AWL[dash]14..........  A special detailed        Within 120 months since   Within 60 months after
                                      inspection of the fault   the date of issuance of   June 12, 2008 (the
                                      current bond of the       the original standard     effective date of AD
                                      fueling shutoff valve     airworthiness             2008-10-11, Amendment
                                      actuator of the center    certificate or the date   39[dash]15517 (73 FR
                                      wing tank to verify       of issuance of the        25974, May 8, 2008)).
                                      electrical bond.          original export
                                                                certificate of
                                                                airworthiness.
----------------------------------------------------------------------------------------------------------------

    (2) For the purposes of this AD, a detailed inspection is: ``An 
intensive examination of a specific item, installation, or assembly 
to detect damage, failure, or irregularity. Available lighting is 
normally supplemented with a direct source of good lighting at an 
intensity deemed appropriate. Inspection aids such as mirror, 
magnifying lenses, etc., may be necessary. Surface cleaning and 
elaborate procedures may be required.''
    (3) For the purposes of this AD, a special detailed inspection 
is: ``An intensive examination of a specific item, installation, or 
assembly to detect damage, failure, or irregularity. The examination 
is likely to make extensive use of specialized inspection techniques 
and/or equipment. Intricate cleaning and substantial access or 
disassembly procedure may be required.''

(i) No Alternative Inspections, Inspection Intervals, or CDCCLs for 
Paragraphs (g) and (h) of This AD

    This paragraph restates the requirements of paragraph (i) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). Except 
as required by paragraph (k) of this AD, after accomplishing the 
actions specified in paragraphs (g) and (h) of this AD, no 
alternative inspections, inspection intervals, or CDCCLs may be used 
unless the inspections, intervals, or CDCCLs are approved as an AMOC 
in accordance with the procedures specified in paragraph (s) of this 
AD.

(j) Terminating Action for AD 2008-06-03, Amendment 39-15415 (73 FR 
13081, March 12, 2008)

    This paragraph restates the requirements of paragraph (j) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). 
Incorporating AWLs No. 28-AWL-23, No. 28-AWL-24, and No. 28-AWL-25 
into the AWLs section of the ICA in accordance with paragraph (g)(3) 
of this AD or the maintenance program in accordance with paragraph 
(k)(3) of this AD terminates the action required by paragraph (h)(2) 
of AD 2008-06-03, Amendment 39-15415 (73 FR 13081, March 12, 2008).

(k) Additional Revision of Airworthiness Limitations (AWLs) Section

    This paragraph restates the requirements of paragraph (k) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). Within 
6 months after August 27, 2012 (the effective date of AD 2012-12-
15), revise the maintenance program by incorporating the information 
in the subsections specified in paragraphs (k)(1) through (k)(3) of 
this AD. Accomplishing the actions required by this paragraph 
terminates the requirements of paragraph (g) of this AD.
    (1) Subsection E, ``AIRWORTHINESS LIMITATIONS--FUEL SYSTEMS,'' 
of Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of the Boeing 757 MPD Document, 
D622N001-9, Revision December 2008; Boeing TR 09-010, dated July 
2010, to Section 9, ``Airworthiness Limitations (AWLs) and 
Certification Maintenance Requirements (CMRs),'' of Boeing 757 MPD 
Document, D622N001-9; or Boeing TR 09-011, dated November 2010, to 
Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of the Boeing 757 MPD Document, 
D622N001-9.
    (2) Subsection F, ``PAGE FORMAT: FUEL SYSTEMS AIRWORTHINESS 
LIMITATIONS,'' of Section 9, ``Airworthiness Limitations (AWLs) and 
Certification Maintenance Requirements (CMRs),'' of the Boeing 757 
MPD Document, D622N001-9, Revision December 2008; Boeing TR 09-010, 
dated July 2010, to Section 9, ``Airworthiness Limitations (AWLs) 
and Certification Maintenance Requirements (CMRs),'' of Boeing 757 
MPD Document, D622N001-9; or Boeing TR 09-011, dated November 2010, 
to Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of the Boeing 757 MPD Document, 
D622N001-9.
    (3) Subsection G, ``AIRWORTHINESS LIMITATIONS--FUEL SYSTEM 
AWLs,'' AWLs No. 28-AWL-01 through No. 28-AWL-26 inclusive, of 
Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of the Boeing 757 MPD Document, 
D622N001-9, Revision December 2008; Boeing TR 09-010, dated July 
2010, to Section 9, ``Airworthiness Limitations (AWLs) and 
Certification Maintenance Requirements (CMRs),'' of Boeing 757 MPD 
Document, D622N001-9; or Boeing TR 09-011, dated November 2010, to 
Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of the Boeing 757 MPD Document, 
D622N001-9.
    (4) Notwithstanding any other maintenance or operational 
requirements, components that have been identified as airworthy or 
installed on the affected airplanes before the revision of the 
maintenance program, as required by paragraph (g) of this AD, do not 
need to be reworked in accordance with the CDCCLs. However, once the 
maintenance program has been revised, future maintenance actions on 
these components must be done in accordance with the CDCCLs.

(l) Compliance Time for AWL No. 28-AWL-03

    This paragraph restates the requirements of paragraph (l) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012), with a 
revised paragraph reference. The initial compliance time for AWL No. 
28-AWL-03 of Section 9, ``Airworthiness Limitations (AWLs) and 
Certification Maintenance Requirements (CMRs),'' of the Boeing 757

[[Page 6251]]

MPD Document, D622N001-9, Revision December 2008; Boeing TR 09-010, 
dated July 2010, to Section 9, ``Airworthiness Limitations (AWLs) 
and Certification Maintenance Requirements (CMRs),'' of Boeing 757 
MPD Document, D622N001-9; or Boeing TR 09-011, dated November 2010, 
to Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of the Boeing 757 MPD Document, 
D622N001-9; is within 120 months since the date of issuance of the 
original standard airworthiness certificate or the date of issuance 
of the original export certificate of airworthiness, or within 24 
months after August 27, 2012 (the effective date of AD 2012-12-15), 
whichever occurs later. Accomplishing the actions required by this 
paragraph terminates the requirements of paragraph (h)(1)(ii) of 
this AD.

(m) Initial Inspection Compliance Times for AWL No. 28-AWL-25

    This paragraph restates the requirements of paragraph (m) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). The 
initial inspection compliance time for AWL No. 28-AWL-25 of Section 
9, ``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9, 
Revision December 2008; Boeing TR 09-010, dated July 2010, to 
Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of Boeing 757 MPD Document, 
D622N001-9; or Boeing TR 09-011, dated November 2010, to Section 9, 
``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9; 
is within 72 months after accomplishing the actions specified in 
Boeing Service Bulletin 757-28A0088 (which is not incorporated by 
reference in this AD).

(n) Initial Inspection Compliance Times for AWL No. 28-AWL-26

    This paragraph restates the requirements of paragraph (n) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). The 
initial inspection compliance time for AWL No. 28-AWL-26 of Section 
9, ``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9, 
Revision December 2008; Boeing TR 09-010, dated July 2010, to 
Section 9, ``Airworthiness Limitations (AWLs) and Certification 
Maintenance Requirements (CMRs),'' of Boeing 757 MPD Document, 
D622N001-9; or Boeing TR 09-011, dated November 2010, to Section 9, 
``Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs),'' of the Boeing 757 MPD Document, D622N001-9; 
is within 12 months after accomplishing the actions specified in 
Boeing Service Bulletin 757-28A0105 (which is not incorporated by 
reference in this AD).

(o) No Alternative Inspections, Inspection Intervals, or CDCCLs After 
the Actions Required by Paragraph (k) of This AD Are Done

    This paragraph restates the requirements of paragraph (o) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). After 
accomplishing the actions specified in paragraph (k) of this AD, no 
alternative inspections, inspection intervals, or CDCCLs may be used 
unless the inspections, intervals, or CDCCLs are approved as an AMOC 
in accordance with the procedures specified in paragraph (s) of this 
AD.

(p) Terminating Action for AD 2008-11-07, Amendment 39-15529 (73 FR 
30755, May 29, 2008)

    This paragraph restates the requirements of paragraph (p) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). 
Incorporating AWLs No. 28-AWL-20 and No. 28-AWL-26 into the 
maintenance program in accordance with paragraph (k)(3) of this AD 
terminates the actions required by paragraphs (j) and (m) of AD 
2008-11-07, Amendment 39-15529 (73 FR 30755, May 29, 2008).

(q) Terminating Action for AD 2009-06-20, Amendment 39-15857 (74 FR 
12236, March 24, 2009)

    This paragraph restates the requirements of paragraph (q) of AD 
2012-12-15, Amendment 39-17095 (77 FR 42964, July 23, 2012). 
Incorporating AWL No. 28-AWL-22 into the maintenance program in 
accordance with paragraph (k)(3) of this AD terminates the actions 
required by paragraph (h) of AD 2009-06-20, Amendment 39-15857 (74 
FR 12236, March 24, 2009).

(r) Credit for Previous Actions

    This paragraph restates the credit given for previous actions 
specified in paragraph (r) of AD 2012-12-15, Amendment 39-17095 (77 
FR 42964, July 23, 2012).
    (1) This paragraph provides credit for actions required by 
paragraphs (g) and (h) of this AD, if those actions were done before 
June 12, 2008 (the effective date of AD 2008-10-11, Amendment 39-
15517 (73 FR 25974, May 8, 2008)), using Section 9, ``Airworthiness 
Limitations (AWLs) and Certification Maintenance Requirements 
(CMRs),'' of the Boeing 757 MPD Document, D622N001-9, Revision March 
2006; Revision October 2006; Revision January 2007; or Revision 
November 2007 (which are not incorporated by reference in this AD).
    (2) This paragraph provides credit for actions required by 
paragraphs (m) and (n) of this AD, if those actions were done before 
August 27, 2012 (the effective date of AD 2012-12-15, Amendment 39-
17095 (77 FR 42964, July 23, 2012)), using Boeing TR 09-008, dated 
March 2008, to Section 9, ``Airworthiness Limitations (AWLs) and 
Certification Maintenance Requirements (CMRs),'' of the Boeing 757 
MPD Document, D622N001-9 (which was incorporated by reference in AD 
2008-10-11, Amendment 39-15517 (73 FR 25974, May 8, 2008)).

(s) 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 the Related Information 
section 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) AMOCs approved previously for AD 2008-10-11, Amendment 39-
15517 (73 FR 25974, May 8, 2008); or for 2012-12-15, Amendment 39-
17095 (77 FR 42964, July 23, 2012); are approved as AMOCs for the 
corresponding provisions of this AD.

(t) Related Information

    (1) For more information about this AD, contact Kevin Nguyen, 
Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle ACO, 
1601 Lind Avenue SW., Renton, Washington 98057-3356; phone: 425-917-
6501; fax: 425-917-6590; email: kevin.nguyen@faa.gov.
    (2) 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 review copies of the 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.

    Issued in Renton, Washington, on January 17, 2013.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2013-01953 Filed 1-29-13; 8:45 am]
BILLING CODE 4910-13-P