
[Federal Register Volume 81, Number 105 (Wednesday, June 1, 2016)]
[Rules and Regulations]
[Pages 34864-34867]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-12331]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-0496; Directorate Identifier 2014-NM-101-AD; 
Amendment 39-18533; AD 2016-11-06]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2005-18-18 for 
certain The Boeing Company Model 757 airplanes. AD 2005-18-18 required 
inspections of certain wire bundles in the left and right engine-to-
wing aft fairings for discrepancies; installation of back-to-back p-
clamps between the wire and hydraulic supply tube at the aft end of the 
right-hand strut only; and associated re-routing of the wire bundles, 
if necessary. This new AD also requires an installation of spiral cable 
wrap on fuel shutoff valve (FSV) wires at the aft end of the strut, for 
both left and right engines, and related investigative and corrective 
actions. This AD was prompted by a determination that the service 
information referenced in AD 2005-18-18 did not adequately address FSV 
wires at the aft end of the struts. We are issuing this AD to prevent 
chafing between the wire bundle and the structure of the aft fairing, 
which could result in electrical arcing and subsequent ignition of 
flammable vapors and a possible uncontrollable fire.

DATES: This AD is effective July 6, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of July 6, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain other publications listed in this AD as of October 
14, 2005 (70 FR 53554, September 9, 2005).

ADDRESSES: For service information identified in this final rule, 
contact Boeing Commercial Airplanes, Attention: Data & Services 
Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 
206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view this referenced service information 
at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., 
Renton, WA 98057. 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-2015-0496.

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-
0496; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and 
other information. The address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, U.S. Department of Transportation, 
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 
New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: William Bond, Aerospace Engineer, 
Propulsion Branch, ANM-140L, FAA, Los Angeles Aircraft Certification 
Office (ACO), 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 
562-627-5253; fax: 562-627-5210; email: william.bond@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to supersede AD 2005-18-18, Amendment 39-14258 (70 FR 53554, 
September 9, 2005) (``AD 2005-18-18''). AD 2005-18-18 applied to 
certain The Boeing Company Model 757-200, -200PF, -200CB, and -300 
series airplanes. The NPRM published in the Federal Register on March 
27, 2015 (80 FR 16318) (``the NPRM''). The NPRM was prompted by a 
report that the service information referenced in AD 2005-18-18 did not 
adequately address FSV wires at the aft end of the strut, for both left 
and right engine struts. The NPRM proposed to continue to require 
inspections of certain wire bundles in the left and right engine-to-
wing aft fairings for discrepancies; installation of back-to-back p-
clamps between the wire and hydraulic supply tube at the aft end of the 
right-hand strut only; and associated re-routing of the wire bundles, 
if necessary. The NPRM also proposed to require installation of 
tetrafluoroethylene spiral cable wrap on the FSV wires at the aft end 
of the strut that would provide additional wiring protection. We are 
issuing this AD to prevent chafing between the wire bundle and the 
structure of the aft

[[Page 34865]]

fairing, which could result in electrical arcing and subsequent 
ignition of flammable vapors and a possible uncontrollable fire.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM and 
the FAA's response to each comment.

Request To Clarify Certain Requirements

    Boeing requested clarification of the actions required by paragraph 
(g) of the proposed AD. Boeing suggested that paragraph (g) of the 
proposed AD be revised to add a statement to clarify that no further 
work would be required if the requirements of AD 2005-18-18 have 
already been accomplished.
    We agree to provide clarification. In paragraph (g) of this AD, we 
restated the requirements of paragraph (f) of AD 2005-18-18. Paragraph 
(f) of this AD states, ``Comply with this AD within the compliance 
times specified, unless already done.'' If operators have already done 
the actions required by paragraph (f) of AD 2005-18-18, they have 
already done the actions required by paragraph (g) of this AD. If 
operators have not already done the actions required by paragraph (g) 
of this AD before the effective date of the AD, then they must use the 
most recent revision of the service information. We have not changed 
this AD in this regard.

Request To Clarify Certain Compliance Time Requirements

    Boeing requested clarification of the compliance times stated in 
paragraph (h) of the proposed AD. Boeing stated that there is confusion 
between ``Within 60 months after the effective date of this AD . . . 
,'' as stated in the first sentence of the paragraph for the spiral 
cable wrap installation, and ``. . . before further flight,'' as stated 
in the second sentence for the related investigative and corrective 
actions. Boeing suggested that the second sentence be deleted from 
paragraph (h) of the proposed AD.
    We do not agree to revise paragraph (h) of this AD. The 
installation of the spiral cable wrap includes related investigative 
and corrective actions, i.e., doing inspections for damaged wire 
bundles, repairing damaged wires, and testing certain fuel shutoff 
wires. These related investigative and corrective actions must be done 
before further flight after damage is found. We have not changed the AD 
in this regard.

Request To Provide Credit for Required Service Information

    FedEx requested that the proposed AD be revised to add a paragraph 
granting credit for accomplishing Boeing Service Bulletin 757-28A0073 
or 757-28A0074, both Revision 2, both dated June 4, 2009, before the 
effective date of the AD. FedEx stated that they had already 
accomplished the requirements on airplanes in their fleet.
    We agree to clarify. The intent of paragraph (f) of this AD is to 
provide relief for accomplishing the requirements of this AD before the 
effective date of this AD. Therefore, this AD already includes the 
credit requested by the commenter. We have not changed this AD in this 
regard.

Request To Allow Credit for Previous AMOC Approvals

    United Airlines (UAL) requested that a paragraph be added to the 
proposed AD to allow credit for all previously approved AMOC letters 
that affect Boeing Service Bulletin 757-28A0073 or 757-28A0074.
    We do not agree to add a new paragraph to this AD. Credit is 
already provided in paragraph (i)(4) of this AD, which specifies that 
AMOCs approved for AD 2005-18-18 are also acceptable as AMOCs for the 
corresponding provisions of paragraph (g) of this AD. (Paragraph (g) of 
this AD restates the requirements of paragraph (f) of AD 2005-18-18.) 
Paragraph (h) of this AD is a new requirement and AMOCs cannot be 
approved for that paragraph until this AD is published. We have not 
changed this AD in this regard.

Request To Provide Relief for Model 757-300 Airplanes Similar to Relief 
Provided to Model 757-200 Airplanes

    UAL requested relief for Model 757-300 airplanes that is similar to 
that provided to the Model 757-200 airplanes in FAA AMOC letter 757-
28A0073-AMOC-01.
    We agree. The issue that the AMOC letter addresses (for Boeing 
Service Bulletin 757-28A0073, Revision 2, dated June 4, 2009) also 
exists in Boeing Service Bulletin 757-28A0074, Revision 2, dated June 
4, 2009. We have revised paragraphs (g) and (h) of this AD to include a 
statement that where Boeing Service Bulletin 757-28A0074, Revision 2, 
dated June 4, 2009, states ``SWPM 20-10-11, Table IX,'' this AD instead 
requires ``SWPM 20-10-11, `Minimum Clearance' Table.''

Request To Incorporate Proposed AD Requirements Into the Maintenance 
Planning Data (MPD) Document

    UAL requested that the proposed AD be revised to require 
incorporation of a required repetitive inspection of the modification 
into the MPD requirements for Model 757 Heavy Check intervals, 
preferably at intervals of 3,000 flight cycles or 20 months. UAL 
suggested that this addition to the MPD could ensure the long-term 
integrity of the modification.
    We do not agree to require a revision to the MPD. We infer that the 
term ``modification'' used by UAL is intended to refer to the 
corrective actions required by paragraph (g) of this AD, and the cable 
wrap installation and related investigative and corrective actions 
required by paragraph (h) of this AD. These actions required by 
paragraphs (g) and (h) of this AD are considered to provide long-term 
integrity of the ``modification'' and maintain an acceptable level of 
safety. However, we encourage operators to proactively revise their 
maintenance programs in accordance with FAA regulations to address 
problems or issues as they arise. We have not changed this AD in this 
regard.

Effect of Winglets on Accomplishment of the Proposed Actions

    Aviation Partners Boeing (APB) stated that the installation of 
winglets per Supplemental Type Certificate (STC) ST01518SE (http://
rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/
312bc296830a925c86257c85006d1b1f/$FILE/ST01518SE.pdf) does not affect 
accomplishment of the manufacturer's service instructions.
    We agree with the commenter that STC ST01518SE (http://rgl.faa.gov/
Regulatory_and_Guidance_Library/rgstc.nsf/0/
312bc296830a925c86257c85006d1b1f/$FILE/ST01518SE.pdf) does not affect 
the accomplishment of the manufacturer's service instructions. 
Therefore, the installation of STC ST01518SE does not affect the 
ability to accomplish the actions required by this AD. We have not 
changed this AD in this regard.

Change Made to the Format of Paragraph (g) of This AD

    We have revised the format of paragraph (g) of this AD by 
converting Table 1 to paragraph (g)(1) to text in paragraph (g). This 
change to the format does not affect the requirements of paragraphs 
(g), (g)(1), or (g)(2) of this AD.

[[Page 34866]]

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD with the changes described previously and minor editorial 
changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletins 757-28A0073 and 757-
28A0074, both Revision 2, both dated June 4, 2009. The service 
information describes procedures for inspecting certain wire bundles in 
the left and right engine-to-wing aft fairings for discrepancies; 
installing back-to-back p-clamps between the wire and hydraulic supply 
tube at the aft end of the right-hand strut only; associated re-routing 
of the wire bundles, if necessary; and installing spiral cable wrap on 
FSV wires on the aft ends of the left and right engine struts, and 
related investigative and corrective actions. This service information 
is reasonably available because the interested parties have access to 
it through their normal course of business or by the means identified 
in the ADDRESSES section.

Costs of Compliance

    We estimate that this AD affects 346 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
             Action                  Labor cost       Parts cost    Cost per  product   Cost on U.S.  operators
----------------------------------------------------------------------------------------------------------------
Inspection of certain wire       Between 16 and 44            $600  Between $1,960     Between $678,160 and
 bundles, and p-clamp             work-hours x $85                   and $4,340.        $1,501,640
 installation [retained actions   per hour =
 from AD 2005-18-18].             Between $1,360
                                  and $3,740.
Installation of spiral cable     10 work-hours x               $10  $860.............  $297,560
 wrap [new action].               $85 per hour =
                                  $850.
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Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We have determined that this AD will not have federalism 
implications under Executive Order 13132. This AD will not have a 
substantial direct effect on the States, on the relationship between 
the national government and the States, or on the distribution of power 
and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2005-18-18, Amendment 39-14258 (70 FR 53554, September 9, 2005), and 
adding the following new AD:

2016-11-06 The Boeing Company: Amendment 39-18533; Docket No. FAA-
2015-0496; Directorate Identifier 2014-NM-101-AD.

(a) Effective Date

    This AD is effective July 6, 2016.

(b) Affected ADs

    This AD replaces AD 2005-18-18, Amendment 39-14258 (70 FR 53554, 
September 9, 2005) (``AD 2005-18-18'').

(c) Applicability

    This AD applies to The Boeing Company Model 757-200, -200PF, -
200CB, and -300 series airplanes; certificated in any category; 
equipped with Rolls-Royce engines; as identified in Boeing Alert 
Service Bulletins 757-28A0073 and 757-28A0074, both Revision 2, both 
dated June 4, 2009.

(d) Subject

    Air Transport Association (ATA) of America Code 28, Fuel.

(e) Unsafe Condition

    This AD was prompted by a report that the service information 
referenced in AD 2005-18-18, did not adequately address fuel shutoff 
valve (FSV) wires at the aft end of the strut, for both left and 
right engine struts. We are issuing this AD to prevent chafing 
between the wire bundle and the structure of the aft fairing, which 
could result in electrical arcing and subsequent ignition of 
flammable vapors and a possible uncontrollable fire.

(f) Compliance

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

[[Page 34867]]

(g) Retained One-Time Inspections/Related Investigative and Corrective 
Actions, With New Service Information and an Exception to Certain 
Service Information

    This paragraph restates the requirements of paragraph (f) of AD 
2005-18-18, with new service information and an exception to certain 
service information. Within 60 months after October 14, 2005 (the 
effective date of AD 2005-18-18), do the actions required by 
paragraphs (g)(1) and (g)(2) of this AD. Where Boeing Alert Service 
Bulletin 757-28A0074, Revision 2, dated June 4, 2009, states ``SWPM 
20-10-11, Table IX,'' the correct phrase is ``SWPM 20-10-11, 
`Minimum Clearance' Table.''
    (1) Accomplish the detailed inspections for discrepancies of the 
wire bundles in the left and right engine-to-wing aft fairings, and 
applicable and related investigative and corrective actions if 
necessary, as applicable, by doing all the actions specified in the 
Accomplishment Instructions of the applicable service bulletins 
listed in paragraphs (g)(1)(i) and (g)(1)(ii) of this AD. As of the 
effective date of this AD, use only Boeing Alert Service Bulletin 
757-28A0073 or 757-28A0074, both Revision 2, both dated June 4, 
2009, as applicable. Accomplish any related investigative and 
corrective actions before further flight, in accordance with the 
applicable service bulletin. 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.''
    (i) For Boeing Model 757-200, -200CB, and -200PF series 
airplanes, use the service information identified in paragraphs 
(g)(1)(i)(A), (g)(1)(i)(B), and (g)(1)(i)(C) of this AD.
    (A) Boeing Alert Service Bulletin 757-28A0073, dated November 
20, 2003;
    (B) Boeing Alert Service Bulletin 757-28A0073, Revision 1, dated 
February 24, 2005.
    (C) Boeing Alert Service Bulletin 757-28A0073, Revision 2, dated 
June 4, 2009.
    (ii) For Boeing Model 757-300 series airplanes, use the service 
information identified in paragraphs (g)(1)(ii)(A), (g)(1)(ii)(B), 
and (g)(1)(ii)(C) of this AD.
    (A) Boeing Alert Service Bulletin 757-28A0074, dated November 
20, 2003.
    (B) Boeing Alert Service Bulletin 757-28A0074, Revision 1, dated 
February 24, 2005.
    (C) Boeing Alert Service Bulletin 757-28A0074, Revision 2, dated 
June 4, 2009.
    (2) Install back-to-back p-clamps between the wire and hydraulic 
supply tube at the aft end of the right-hand strut only; and re-
route the wire bundles, if necessary; by doing all the applicable 
actions specified in the Accomplishment Instructions of the 
applicable service information identified in paragraphs (g)(2)(i) 
through (g)(2)(iv) of this AD. As of the effective date of this AD, 
use only the service information identified in paragraphs (g)(2)(ii) 
and (g)(2)(iv) of this AD, as applicable.
    (i) Boeing Alert Service Bulletin 757-28A0073, Revision 1, dated 
February 24, 2005.
    (ii) Boeing Alert Service Bulletin 757-28A0073, Revision 2, 
dated June 4, 2009.
    (iii) Boeing Alert Service Bulletin 757-28A0074, Revision 1, 
dated February 24, 2005.
    (iv) Boeing Alert Service Bulletin 757-28A0074, Revision 2, 
dated June 4, 2009.

(h) New Spiral Cable Wrap Installation

    Within 60 months after the effective date of this AD, install 
spiral cable wrap on FSV wires at the aft end of the strut, for both 
left and right engines, and do all applicable related investigative 
and corrective actions, in accordance with the Accomplishment 
Instructions of Boeing Alert Service Bulletin 757-28A0073 (for Model 
757-200, -200CB, and -200PF series airplanes) or 757-28A0074 (for 
Model 757-300 series airplanes), both Revision 2, both dated June 4, 
2009. Where Boeing Alert Service Bulletin 757-28A0074, Revision 2, 
dated June 4, 2009, states ``SWPM 20-10-11, Table IX,'' the correct 
phrase is ``SWPM 20-10-11, `Minimum Clearance' Table.'' Do all 
applicable related investigative and corrective actions before 
further flight.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles Aircraft Certification Office 
(ACO), FAA, has the authority to approve AMOCs for this AD, if 
requested using the procedures found in 14 CFR 39.19. In accordance 
with 14 CFR 39.19, send your request to your principal inspector or 
local Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the ACO, send it to the 
attention of the person identified in paragraph (j) of this AD. 
Information may be emailed to: 9-ANM-LAACO-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, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Los Angeles ACO, to make those findings. To be approved, 
the repair method, modification deviation, or alteration deviation 
must meet the certification basis of the airplane, and the approval 
must specifically refer to this AD.
    (4) AMOCs approved for AD 2005-18-18 are approved as AMOCs for 
the corresponding provisions of paragraph (g) of this AD.

(j) Related Information

    For more information about this AD, contact William Bond, 
Aerospace Engineer, Propulsion Branch, ANM-140L, FAA, Los Angeles 
ACO, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-
627-5253; fax: 562-627-5210; email: william.bond@faa.gov.

(k) 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 
July 6, 2016.
    (i) Boeing Alert Service Bulletin 757-28A0073, Revision 2, dated 
June 4, 2009.
    (ii) Boeing Alert Service Bulletin 757-28A0074, Revision 2, 
dated June 4, 2009.
    (4) The following service information was approved for IBR on 
October 14, 2005 (70 FR 53554, September 9, 2005).
    (i) Boeing Alert Service Bulletin 757-28A0073, dated November 
20, 2003.
    (ii) Boeing Alert Service Bulletin 757-28A0073, Revision 1, 
dated February 24, 2005.
    (iii) Boeing Alert Service Bulletin 757-28A0074, dated November 
20, 2003.
    (iv) Boeing Alert Service Bulletin 757-28A0074, Revision 1, 
dated February 24, 2005.
    (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 May 17, 2016.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-12331 Filed 5-31-16; 8:45 am]
 BILLING CODE 4910-13-P


