[Federal Register Volume 80, Number 59 (Friday, March 27, 2015)]
[Proposed Rules]
[Pages 16318-16321]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-06782]


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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]
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 supersede Airworthiness Directive (AD) 2005-18-
18, which applies to certain The Boeing Company Model 757 airplanes. AD 
2005-18-18 currently requires 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. Since we issued AD 2005-
18-18, we have determined 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 struts. This proposed AD would add an installation 
of spiral cable wrap on FSV wires at the aft end of the strut, for both 
left and right engines, and related investigative and corrective 
actions. We are proposing 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 
possible uncontrollable fire.

DATES: We must receive comments on this proposed AD by May 11, 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: 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 proposed 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 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 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: Christopher Baker, Aerospace Engineer, 
Propulsion Branch, ANM-140S, FAA, Seattle Aircraft Certification Office 
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6498; fax: 425-917-6590; email: [email protected].

SUPPLEMENTARY INFORMATION: 

[[Page 16319]]

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-2015-0496; 
Directorate Identifier 2014-NM-101-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 August 31, 2005, we issued AD 2005-18-18, Amendment 39-14258 (70 
FR 53554, September 9, 2005), for certain The Boeing Company Model 757-
200, -200PF, -200CB, and -300 series airplanes. AD 2005-18-18 requires 
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. AD 2005-18-18 resulted from a report indicating that a 
circuit breaker for the fuel shutoff valve tripped due to a wire that 
chafed against the structure in the flammable leakage zone of the aft 
fairing, causing a short circuit. We issued AD 2005-18-18 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 possible uncontrollable fire.

Actions Since AD 2005-18-18, Amendment 39-14258 (70 FR 53554, September 
9, 2005), Was Issued

    Since we issued AD 2005-18-18, Amendment 39-14258 (70 FR 53554, 
September 9, 2005), we received 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 
proposed installation of tetrafluoroethylene spiral cable wrap on the 
FSV wires at the aft end of the strut would provide additional wiring 
protection.

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. Refer to this service 
information for information on the procedures and compliance times. 
This service information is reasonably available; see ADDRESSES for 
ways to access this service information.

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 2005-18-18, 
Amendment 39-14258 (70 FR 53554, September 9, 2005). This proposed AD 
would add a requirement to install spiral cable wrap on FSV wires at 
the aft end of the strut, for both left and right engines, and related 
investigative and corrective actions. This proposed AD would require 
accomplishing the actions specified in the service information 
identified previously.
    The phrase ``related investigative actions'' is used in this 
proposed AD. ``Related investigative actions'' are follow-on actions 
that (1) are related to the primary action, and (2) further investigate 
the nature of any condition found. Related investigative actions in an 
AD could include, for example, inspections.
    The phrase ``corrective actions'' is used in this proposed AD. 
``Corrective actions'' are actions that correct or address any 
condition found. Corrective actions in an AD could include, for 
example, repairs.

Costs of Compliance

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

                                                 Estimated Costs
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                                                                                                 Cost on U.S.
              Action                    Labor cost        Parts cost      Cost per product        operators
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Inspection of certain wire         Between 16 and 44              $600  Between $1,960 and   Between $678,160
 bundles, and p-clamp               work-hours x $85                     $4,340.              and $1,501,640.
 installation [retained actions     per hour = Between
 from AD 2005-18-18, Amendment 39-  $1,360 and $3,740.
 14258 (70 FR 53554, September 9,
 2005)].
Installation of spiral cable wrap  10 work-hours x $85             $10  $860...............  $297,560.
 [new proposed action].             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.

[[Page 16320]]

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 removing Airworthiness Directive (AD) 
2005-18-18, Amendment 39-14258 (70 FR 53554, September 9, 2005), and 
adding the following new AD:

The Boeing Company: Docket No. FAA-2015-0496; Directorate Identifier 
2014-NM-101-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by May 11, 2015.

(b) Affected ADs

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

(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, Amendment 39-14258 (70 FR 53554, 
September 9, 2005), 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 
possible uncontrollable fire.

(f) Compliance

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

(g) Retained One-Time Inspections/Related Investigative and Corrective 
Actions

    This paragraph restates the requirements of paragraph (f) of AD 
2005-18-18, Amendment 39-14258 (70 FR 53554, September 9, 2005), 
with new 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.
    (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 Table 1 to paragraph (g)(1) 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.''

                  Table 1 to Paragraph (g)(1) of This AD--Airplane Models and Service Bulletins
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                                           Boeing alert
            Boeing airplanes                  service           Revision level                   Date
                                             bulletin
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Model 757-200, -200CB, and -200PF series     757-28A0073  Original..................  November 20, 2003.
 airplanes.
Model 757-200, -200CB, and -200PF series     757-28A0073  1.........................  February 24, 2005.
 airplanes.
Model 757-200, -200CB, and -200PF series     757-28A0073  2.........................  June 4, 2009.
 airplanes.
Model 757-300 series airplanes..........     757-28A0074  Original..................  November 20, 2003.
Model 757-300 series airplanes..........     757-28A0074  1.........................  February 24, 2005.
Model 757-300 series airplanes..........     757-28A0074  2.........................  June 4, 2009.
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    (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. Do the related investigative and corrective actions before 
further flight.

(i) 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 16321]]

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)(1) of this AD. Information may be 
emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) AMOCs approved for AD 2005-18-18, Amendment 39-14258 (70 FR 
53554, September 9, 2005), are approved as AMOCs for paragraph (g) 
of this AD.

(j) Related Information

    (1) For more information about this AD, contact Christopher 
Baker, Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle 
ACO, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6498; 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, 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 
Ave. SW., Renton WA. For information on the availability of this 
material at the FAA, call 425-227-1221.

    Issued in Renton, Washington, on March 12, 2015.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-06782 Filed 3-26-15; 8:45 am]
 BILLING CODE 4910-13-P