81_FR_66058 81 FR 65872 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 65872 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 186 (September 26, 2016)

Page Range65872-65874
FR Document2016-22188

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes. This AD was prompted by several reports of chafing of the wire bundles inside the electrical conduit of the forward and aft boost pumps of the numbers 1 and 4 main fuel tanks due to high vibration. These wire bundles can chafe through the wire sleeving into the insulation, exposing the wire conductors. This AD requires replacing the wire bundles inside the electrical conduit of the forward and aft boost pumps of the numbers 1 and 4 main fuel tanks with new, improved wire bundles inserted into conduit liners. This AD also requires adding a revision to the maintenance or inspection program, as applicable, to include critical design configuration control limitations (CDCCLs) for the fuel boost pump wiring. We are issuing this AD to prevent chafing of the wire bundles and subsequent arcing between the wiring and the electrical conduit creating an ignition source in the fuel tanks, which could result in a fire and consequent fuel tank explosion.

Federal Register, Volume 81 Issue 186 (Monday, September 26, 2016) 
[Federal Register Volume 81, Number 186 (Monday, September 26, 2016)]
[Rules and Regulations]
[Pages 65872-65874]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-22188]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-0935; Directorate Identifier 2014-NM-243-AD; 
Amendment 39-18652; AD 2016-19-03]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 
747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 
747SP series airplanes. This AD was prompted by several reports of 
chafing of the wire bundles inside the electrical conduit of the 
forward and aft boost pumps of the numbers 1 and 4 main fuel tanks due 
to high vibration. These wire bundles can chafe through the wire 
sleeving into the insulation, exposing the wire conductors. This AD 
requires replacing the wire bundles inside the electrical conduit of 
the forward and aft boost pumps of the numbers 1 and 4 main fuel tanks 
with new, improved wire bundles inserted into conduit liners. This AD 
also requires adding a revision to the maintenance or inspection 
program, as applicable, to include critical design configuration 
control limitations (CDCCLs) for the fuel boost pump wiring. We are 
issuing this AD to prevent chafing of the wire bundles and subsequent 
arcing between the wiring and the electrical conduit creating an 
ignition source in the fuel tanks, which could result in a fire and 
consequent fuel tank explosion.

DATES: This AD is effective October 31, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of October 31, 
2016.

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. 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-
0935.

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-
0935; 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: Tung Tran, Aerospace Engineer, 
Propulsion Branch, ANM-140S, FAA, Seattle Aircraft Certification 
Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6505; fax: 425-917-6590; email: [email protected].

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a supplemental notice of proposed rulemaking (SNPRM) to 
amend 14 CFR part 39 by adding an AD that would apply to certain The 
Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-
200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP 
series airplanes. The SNPRM published in the Federal Register on March 
8, 2016 (81 FR 12041) (``the SNPRM''). We preceded the SNPRM with a 
notice of proposed rulemaking (NPRM) that published in the Federal 
Register on May 1, 2015 (80 FR 24850) (``the NPRM''). The NPRM proposed 
to require replacing the wire bundles inside the electrical conduit of 
the forward and aft boost pumps of the numbers 1 and 4 main fuel tanks 
with new, improved wire bundles inserted into conduit liners. The NPRM 
was prompted by several reports of chafing of the wire bundles inside 
the electrical conduit of the forward and aft boost pumps of the 
numbers 1 and 4 main fuel tanks due to high vibration. These wire 
bundles can chafe through the wire sleeving into the insulation, 
exposing the wire conductors. The SNPRM proposed to require a revision 
to the maintenance or inspection program, as applicable, to include 
CDCCLs for the fuel boost pump wiring. We are issuing this AD to 
prevent chafing of the wire bundles and subsequent arcing between the 
wiring and the electrical conduit creating an ignition source in the 
fuel tanks, which could result in a fire and consequent fuel tank 
explosion.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We have considered the comments received. The Air Line Pilots 
Association International, Boeing, and United Airlines supported the 
SNPRM.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD as proposed, except for minor editorial changes. We have 
determined that these minor changes:
     Are consistent with the intent that was proposed in the 
SNPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the SNPRM.

[[Page 65873]]

Related Service Information Under 1 CFR Part 51

    We reviewed the following service information:
     Boeing Alert Service Bulletin 747-28A2306, dated October 
2, 2014. The service information describes procedures for replacing the 
wire bundles of the electrical conduit inside the electrical conduit of 
the forward and aft boost pumps of the numbers 1 and 4 main fuel tanks.
     Boeing 747-100/200/300/SP Airworthiness Limitations (AWLs) 
and Certification Maintenance Requirements (CMRs), Document D6-13747-
CMR, Revision June 2014. Among other things, Document D6-13747-CMR 
describes CDCCL AWL No. 28-AWL-24 for the fuel boost pump wiring.
     Section 9, Airworthiness Limitations (AWLs) and 
Certification Maintenance Requirements (CMRs), of Boeing 747-400 
Maintenance Planning Data (MPD) Document D621U400-9, Revision June 
2014. Among other things, Section 9 describes CDCCL AWL No. 28-AWL-35 
for the fuel boost pump wiring.
    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 176 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
              Action                    Labor cost        Parts cost      Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Replacement......................  Up to 53                     $4,600  Up to $9,105.......  Up to $1,602,480.
                                    work[dash]hours x
                                    $85 per hour =
                                    $4,505.
Revise maintenance or inspection   1 work-hour x $85                $0  $85................  $14,960.
 program.                           per hour = $85.
----------------------------------------------------------------------------------------------------------------

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

    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):

2016-19-03 The Boeing Company: Amendment 39-18652; Docket No. FAA-
2015-0935; Directorate Identifier 2014-NM-243-AD.

(a) Effective Date

    This AD is effective October 31, 2016.

(b) Affected ADs

    This AD affects AD 2011-15-03, Amendment 39-16750 (76 FR 41659, 
July 15, 2011). (``AD 2011-15-03'')

(c) Applicability

    This AD applies to The Boeing Company Model 747-100, 747-100B, 
747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-
400D, 747-400F, 747SR, and 747SP series airplanes, certificated in 
any category, as identified in Boeing Alert Service Bulletin 747-
28A2306, dated October 2, 2014.

(d) Subject

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

(e) Unsafe Condition

    This AD was prompted by several reports of chafing of the wire 
bundles inside the electrical conduit of the forward and aft boost 
pumps of the numbers 1 and 4 main fuel tanks due to high vibration. 
These wire bundles can chafe through the wire sleeving into the 
insulation, exposing the wire conductors. We are issuing this AD to 
prevent chafing of the wire bundles and subsequent arcing between 
the wiring and the electrical conduit creating an ignition source in 
the fuel tanks, which could result in a fire and consequent fuel 
tank explosion.

(f) Compliance

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

(g) Replacement

    Within 60 months after the effective date of this AD: Replace 
the wire bundles inside the electrical conduit of the forward and 
aft boost pumps of the numbers 1 and 4 main fuel tanks with new, 
improved wire bundles inserted into conduit liners, in accordance 
with the Accomplishment Instructions of Boeing Alert Service 
Bulletin 747-28A2306, dated October 2, 2014. Accomplishing the 
replacement required by this paragraph terminates the inspections 
required by paragraphs (g), (h), and (n) of AD 2011-15-03.

[[Page 65874]]

(h) Maintenance or Inspection Program Revision

    Within 180 days after the effective date of this AD, revise the 
maintenance or inspection program, as applicable, to incorporate 
critical design configuration control limitation (CDCCL) 
Airworthiness Limitation (AWL) No. 28-AWL-24, ``Fuel Boost Pump 
Wires In Conduit Installation--In Fuel Tank,'' of Sub-section C.1, 
``Fuel Tank Ignition Prevention,'' of Section C., ``Airworthiness 
Limitations--Systems,'' of the Boeing 747-100/200/300/SP 
Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs) Document D6-13747-CMR, Revision June 2014; or 
CDCCL AWL No. 28-AWL-35, ``Fuel Boost Pump Wires In Conduit 
Installation--In Fuel Tank,'' of Sub-section B.1, ``Fuel System 
Ignition Prevention,'' of Section B, ``Airworthiness Limitations 
(AWLs)--Systems,'' of Section 9, Airworthiness Limitations (AWLs) 
and Certification Maintenance Requirements (CMRs), of Boeing 747-400 
Maintenance Planning Data (MPD) Document D621U400-9, Revision June 
2014; as applicable.

(i) No Alternative Actions, Intervals, and/or CDCCLs

    After accomplishing the revision required by paragraph (h) of 
this AD, no alternative actions (e.g., inspections), intervals, and/
or CDCCLs may be used unless the actions, intervals, and/or CDCCLs 
are approved as an alternative method of compliance (AMOC) in 
accordance with the procedures specified in paragraph (j) of this 
AD.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle Aircraft Certification Office (ACO), 
FAA, has the authority to approve AMOCs for this AD, if requested 
using the procedures found in 14 CFR 39.19. In accordance with 14 
CFR 39.19, send your request to your principal inspector or local 
Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the ACO, send it to the 
attention of the person identified in paragraph (k)(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) 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, Seattle 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.

(k) Related Information

    For more information about this AD, contact Tung Tran, Aerospace 
Engineer, Propulsion Branch, ANM-140S, FAA, Seattle ACO, 1601 Lind 
Avenue SW., Renton, WA 98057-3356; phone: 425-917-6505; fax: 425-
917-6590; email: [email protected].

(l) 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.
    (i) Boeing Alert Service Bulletin 747-28A2306, dated October 2, 
2014.
    (ii) Boeing 747-100/200/300/SP Airworthiness Limitations (AWLs) 
and Certification Maintenance Requirements (CMRs) Document D6-13747-
CMR, Revision June 2014.
    (iii) Section 9, Airworthiness Limitations (AWLs) and 
Certification Maintenance Requirements (CMRs), of Boeing 747-400 
Maintenance Planning Data (MPD) Document D621U400-9, Revision June 
2014.
    (3) 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; phone: 206-544-
5000, extension 1; fax: 206-766-5680; Internet: https://www.myboeingfleet.com.
    (4) You may view this referenced service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. 
For information on the availability of this material at the FAA, 
call 425-227-1221.
    (5) 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 September 6, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-22188 Filed 9-23-16; 8:45 am]
 BILLING CODE 4910-13-P

65872 Federal Register / Vol. 81, No. 186 / Monday, September 26, 2016 / Rules and Regulations (xii) Boeing Service Bulletin 737–28A1227, boost pumps of the numbers 1 and 4 SUPPLEMENTARY INFORMATION: Revision 2, dated September 23, 2014. main fuel tanks with new, improved (xiii) Boeing 737–100/200/200C/300/400/ wire bundles inserted into conduit Discussion 500 Airworthiness Limitations (AWLs) and liners. This AD also requires adding a Certification Maintenance Requirements We issued a supplemental notice of (CMRs), Document D6–38278–CMR, Revision revision to the maintenance or proposed rulemaking (SNPRM) to June 2014. inspection program, as applicable, to amend 14 CFR part 39 by adding an AD (4) For Boeing service information include critical design configuration that would apply to certain The Boeing identified in this AD, contact Boeing control limitations (CDCCLs) for the fuel Company Model 747–100, 747–100B, Commercial Airplanes, Attention: Data & boost pump wiring. We are issuing this 747–100B SUD, 747–200B, 747–200C, Services Management, P. O. Box 3707, MC AD to prevent chafing of the wire 2H–65, Seattle, WA 98124–2207; telephone: 747–200F, 747–300, 747–400, 747– bundles and subsequent arcing between 400D, 747–400F, 747SR, and 747SP 206–544–5000, extension 1; fax: 206–766– the wiring and the electrical conduit 5680; Internet https:// series airplanes. The SNPRM published creating an ignition source in the fuel www.myboeingfleet.com. in the Federal Register on March 8, (5) You may view this referenced service tanks, which could result in a fire and 2016 (81 FR 12041) (‘‘the SNPRM’’). We information at the FAA, Transport Airplane consequent fuel tank explosion. preceded the SNPRM with a notice of Directorate, 1601 Lind Avenue SW., Renton, DATES: This AD is effective October 31, proposed rulemaking (NPRM) that WA. For information on the availability of 2016. published in the Federal Register on this material at the FAA, call 425–227–1221. The Director of the Federal Register (6) You may view this service information May 1, 2015 (80 FR 24850) (‘‘the approved the incorporation by reference that is incorporated by reference at the NPRM’’). The NPRM proposed to of certain publications listed in this AD National Archives and Records require replacing the wire bundles as of October 31, 2016. Administration (NARA). For information on inside the electrical conduit of the the availability of this material at NARA, call ADDRESSES: For service information forward and aft boost pumps of the 202–741–6030, or go to: http:// identified in this final rule, contact numbers 1 and 4 main fuel tanks with www.archives.gov/federal-register/cfr/ibr- Boeing Commercial Airplanes, new, improved wire bundles inserted locations.html. Attention: Data & Services Management, into conduit liners. The NPRM was Issued in Renton, Washington, on August P.O. Box 3707, MC 2H–65, Seattle, WA prompted by several reports of chafing 25, 2016. 98124–2207; telephone: 206–544–5000, of the wire bundles inside the electrical John P. Piccola, Jr., extension 1; fax: 206–766–5680; conduit of the forward and aft boost Acting Manager, Transport Airplane Internet: https:// pumps of the numbers 1 and 4 main fuel Directorate, Aircraft Certification Service. www.myboeingfleet.com. You may view tanks due to high vibration. These wire this referenced service information at [FR Doc. 2016–21602 Filed 9–23–16; 8:45 am] bundles can chafe through the wire the FAA, Transport Airplane BILLING CODE 4910–13–P sleeving into the insulation, exposing Directorate, 1601 Lind Avenue SW., the wire conductors. The SNPRM Renton, WA. For information on the proposed to require a revision to the DEPARTMENT OF TRANSPORTATION availability of this material at the FAA, maintenance or inspection program, as call 425–227–1221. It is also available applicable, to include CDCCLs for the Federal Aviation Administration on the Internet at http:// fuel boost pump wiring. We are issuing www.regulations.gov by searching for this AD to prevent chafing of the wire 14 CFR Part 39 and locating Docket No. FAA–2015– bundles and subsequent arcing between 0935. [Docket No. FAA–2015–0935; Directorate the wiring and the electrical conduit Identifier 2014–NM–243–AD; Amendment Examining the AD Docket creating an ignition source in the fuel 39–18652; AD 2016–19–03] tanks, which could result in a fire and You may examine the AD docket on RIN 2120–AA64 the Internet at http:// consequent fuel tank explosion. www.regulations.gov by searching for Comments Airworthiness Directives; The Boeing and locating Docket No. FAA–2015– Company Airplanes 0935; or in person at the Docket We gave the public the opportunity to AGENCY: Federal Aviation Management Facility between 9 a.m. participate in developing this AD. We Administration (FAA), DOT. and 5 p.m., Monday through Friday, have considered the comments received. except Federal holidays. The AD docket The Air Line Pilots Association ACTION: Final rule. contains this AD, the regulatory International, Boeing, and United SUMMARY: We are adopting a new evaluation, any comments received, and Airlines supported the SNPRM. airworthiness directive (AD) for certain other information. The address for the Docket Office (phone: 800–647–5527) is Conclusion The Boeing Company Model 747–100, 747–100B, 747–100B SUD, 747–200B, Docket Management Facility, U.S. We reviewed the relevant data, 747–200C, 747–200F, 747–300, 747– Department of Transportation, Docket considered the comments received, and 400, 747–400D, 747–400F, 747SR, and Operations, M–30, West Building determined that air safety and the 747SP series airplanes. This AD was Ground Floor, Room W12–140, 1200 public interest require adopting this AD prompted by several reports of chafing New Jersey Avenue SE., Washington, as proposed, except for minor editorial of the wire bundles inside the electrical DC 20590. changes. We have determined that these conduit of the forward and aft boost FOR FURTHER INFORMATION CONTACT: minor changes: mstockstill on DSK3G9T082PROD with RULES pumps of the numbers 1 and 4 main fuel Tung Tran, Aerospace Engineer, tanks due to high vibration. These wire Propulsion Branch, ANM–140S, FAA, • Are consistent with the intent that bundles can chafe through the wire Seattle Aircraft Certification Office, was proposed in the SNPRM for sleeving into the insulation, exposing 1601 Lind Avenue SW., Renton, WA correcting the unsafe condition; and the wire conductors. This AD requires 98057–3356; phone: 425–917–6505; fax: • Do not add any additional burden replacing the wire bundles inside the 425–917–6590; email: tung.tran@ upon the public than was already electrical conduit of the forward and aft faa.gov. proposed in the SNPRM. VerDate Sep<11>2014 20:07 Sep 23, 2016 Jkt 238001 PO 00000 Frm 00020 Fmt 4700 Sfmt 4700 E:\FR\FM\26SER1.SGM 26SER1

Federal Register / Vol. 81, No. 186 / Monday, September 26, 2016 / Rules and Regulations 65873 Related Service Information Under 1 • Boeing 747–100/200/300/SP things, Section 9 describes CDCCL AWL CFR Part 51 Airworthiness Limitations (AWLs) and No. 28–AWL–35 for the fuel boost pump Certification Maintenance Requirements wiring. We reviewed the following service (CMRs), Document D6–13747–CMR, This service information is reasonably information: Revision June 2014. Among other available because the interested parties • Boeing Alert Service Bulletin 747– things, Document D6–13747–CMR have access to it through their normal 28A2306, dated October 2, 2014. The describes CDCCL AWL No. 28–AWL–24 course of business or by the means service information describes for the fuel boost pump wiring. identified in the ADDRESSES section. procedures for replacing the wire • Section 9, Airworthiness Costs of Compliance bundles of the electrical conduit inside Limitations (AWLs) and Certification the electrical conduit of the forward and Maintenance Requirements (CMRs), of We estimate that this AD affects 176 aft boost pumps of the numbers 1 and Boeing 747–400 Maintenance Planning airplanes of U.S. registry. 4 main fuel tanks. Data (MPD) Document D621U400–9, We estimate the following costs to Revision June 2014. Among other comply with this AD: ESTIMATED COSTS Cost on U.S. Action Labor cost Parts cost Cost per product operators Replacement ...................................... Up to 53 work-hours × $85 per hour $4,600 Up to $9,105 .............. Up to $1,602,480. = $4,505. Revise maintenance or inspection 1 work-hour × $85 per hour = $85 .... $0 $85 ............................. $14,960. program. Authority for This Rulemaking (3) Will not affect intrastate aviation (c) Applicability in Alaska, and This AD applies to The Boeing Company Title 49 of the United States Code (4) Will not have a significant Model 747–100, 747–100B, 747–100B SUD, specifies the FAA’s authority to issue 747–200B, 747–200C, 747–200F, 747–300, rules on aviation safety. Subtitle I, economic impact, positive or negative, 747–400, 747–400D, 747–400F, 747SR, and section 106, describes the authority of on a substantial number of small entities 747SP series airplanes, certificated in any the FAA Administrator. Subtitle VII: under the criteria of the Regulatory category, as identified in Boeing Alert Aviation Programs, describes in more Flexibility Act. Service Bulletin 747–28A2306, dated October detail the scope of the Agency’s 2, 2014. List of Subjects in 14 CFR Part 39 authority. (d) Subject We are issuing this rulemaking under Air transportation, Aircraft, Aviation Air Transport Association (ATA) of the authority described in Subtitle VII, safety, Incorporation by reference, America Code 28, Fuel. Part A, Subpart III, Section 44701: Safety. (e) Unsafe Condition ‘‘General requirements.’’ Under that Adoption of the Amendment This AD was prompted by several reports section, Congress charges the FAA with promoting safe flight of civil aircraft in of chafing of the wire bundles inside the Accordingly, under the authority electrical conduit of the forward and aft boost air commerce by prescribing regulations delegated to me by the Administrator, pumps of the numbers 1 and 4 main fuel for practices, methods, and procedures the FAA amends 14 CFR part 39 as tanks due to high vibration. These wire the Administrator finds necessary for follows: bundles can chafe through the wire sleeving safety in air commerce. This regulation into the insulation, exposing the wire is within the scope of that authority PART 39—AIRWORTHINESS conductors. We are issuing this AD to because it addresses an unsafe condition DIRECTIVES prevent chafing of the wire bundles and that is likely to exist or develop on subsequent arcing between the wiring and products identified in this rulemaking the electrical conduit creating an ignition ■ 1. The authority citation for part 39 source in the fuel tanks, which could result action. continues to read as follows: in a fire and consequent fuel tank explosion. Regulatory Findings Authority: 49 U.S.C. 106(g), 40113, 44701. (f) Compliance This AD will not have federalism § 39.13 [Amended] Comply with this AD within the implications under Executive Order compliance times specified, unless already 13132. This AD will not have a ■ 2. The FAA amends § 39.13 by adding done. substantial direct effect on the States, on the following new airworthiness (g) Replacement the relationship between the national directive (AD): Within 60 months after the effective date government and the States, or on the 2016–19–03 The Boeing Company: of this AD: Replace the wire bundles inside distribution of power and Amendment 39–18652; Docket No. the electrical conduit of the forward and aft responsibilities among the various FAA–2015–0935; Directorate Identifier boost pumps of the numbers 1 and 4 main levels of government. 2014–NM–243–AD. fuel tanks with new, improved wire bundles mstockstill on DSK3G9T082PROD with RULES For the reasons discussed above, I inserted into conduit liners, in accordance (a) Effective Date with the Accomplishment Instructions of certify that this AD: This AD is effective October 31, 2016. Boeing Alert Service Bulletin 747–28A2306, (1) Is not a ‘‘significant regulatory dated October 2, 2014. Accomplishing the action’’ under Executive Order 12866, (b) Affected ADs replacement required by this paragraph (2) Is not a ‘‘significant rule’’ under This AD affects AD 2011–15–03, terminates the inspections required by DOT Regulatory Policies and Procedures Amendment 39–16750 (76 FR 41659, July 15, paragraphs (g), (h), and (n) of AD 2011–15– (44 FR 11034, February 26, 1979), 2011). (‘‘AD 2011–15–03’’) 03. VerDate Sep<11>2014 20:07 Sep 23, 2016 Jkt 238001 PO 00000 Frm 00021 Fmt 4700 Sfmt 4700 E:\FR\FM\26SER1.SGM 26SER1

65874 Federal Register / Vol. 81, No. 186 / Monday, September 26, 2016 / Rules and Regulations (h) Maintenance or Inspection Program 98057–3356; phone: 425–917–6505; fax: 425– interim final rule published on July 27, Revision 917–6590; email: tung.tran@faa.gov. 2016, and responds to the comments Within 180 days after the effective date of (l) Material Incorporated by Reference received on that interim final rule. The this AD, revise the maintenance or inspection rule removed the requirement that a (1) The Director of the Federal Register program, as applicable, to incorporate critical repair station with an airframe rating approved the incorporation by reference design configuration control limitation provide suitable permanent housing to (IBR) of the service information listed in this (CDCCL) Airworthiness Limitation (AWL) No. 28–AWL–24, ‘‘Fuel Boost Pump Wires In paragraph under 5 U.S.C. 552(a) and 1 CFR enclose the largest type and model part 51. aircraft listed on its operations Conduit Installation—In Fuel Tank,’’ of Sub- (2) You must use this service information specifications. The FAA also revised its section C.1, ‘‘Fuel Tank Ignition Prevention,’’ as applicable to do the actions required by general housing and facilities regulation of Section C., ‘‘Airworthiness Limitations— this AD, unless the AD specifies otherwise. Systems,’’ of the Boeing 747–100/200/300/SP to provide that a repair station’s housing (i) Boeing Alert Service Bulletin 747– Airworthiness Limitations (AWLs) and for its facilities, equipment, materials, 28A2306, dated October 2, 2014. Certification Maintenance Requirements and personnel must be consistent not (ii) Boeing 747–100/200/300/SP (CMRs) Document D6–13747–CMR, Revision only with its ratings, but also with its Airworthiness Limitations (AWLs) and June 2014; or CDCCL AWL No. 28–AWL–35, ‘‘Fuel Boost Pump Wires In Conduit Certification Maintenance Requirements limitations to those ratings. Finally, the Installation—In Fuel Tank,’’ of Sub-section (CMRs) Document D6–13747–CMR, Revision FAA added an additional general June 2014. purpose limited rating to cover B.1, ‘‘Fuel System Ignition Prevention,’’ of (iii) Section 9, Airworthiness Limitations maintenance work not covered by the Section B, ‘‘Airworthiness Limitations (AWLs) and Certification Maintenance (AWLs)—Systems,’’ of Section 9, existing 12 limited rating categories. Requirements (CMRs), of Boeing 747–400 Airworthiness Limitations (AWLs) and DATES: Effective September 26, 2016. Maintenance Planning Data (MPD) Document Certification Maintenance Requirements D621U400–9, Revision June 2014. ADDRESSES: For information on where to (CMRs), of Boeing 747–400 Maintenance (3) For service information identified in obtain copies of rulemaking documents Planning Data (MPD) Document D621U400– this AD, contact Boeing Commercial and other information related to this 9, Revision June 2014; as applicable. Airplanes, Attention: Data & Services action, see ‘‘How To Obtain Additional (i) No Alternative Actions, Intervals, and/or Management, P.O. Box 3707, MC 2H–65, Information’’ in the SUPPLEMENTARY CDCCLs Seattle, WA 98124–2207; phone: 206–544– 5000, extension 1; fax: 206–766–5680; INFORMATION section of this document. After accomplishing the revision required FOR FURTHER INFORMATION CONTACT: For Internet: https://www.myboeingfleet.com. by paragraph (h) of this AD, no alternative actions (e.g., inspections), intervals, and/or (4) You may view this referenced service technical questions concerning this information at the FAA, Transport Airplane action, contact Susan Traugott Ludwig, CDCCLs may be used unless the actions, Directorate, 1601 Lind Avenue SW., Renton, Aircraft Maintenance Division, Repair intervals, and/or CDCCLs are approved as an WA. For information on the availability of Station Branch, AFS–340, Federal alternative method of compliance (AMOC) in this material at the FAA, call 425–227–1221. accordance with the procedures specified in Aviation Administration, 800 (5) You may view this service information paragraph (j) of this AD. Independence Avenue SW., that is incorporated by reference at the (j) Alternative Methods of Compliance National Archives and Records Washington, DC 20591; telephone (214) (AMOCs) Administration (NARA). For information on 587–8887; email susan.traugott.ludwig@ (1) The Manager, Seattle Aircraft the availability of this material at NARA, call faa.gov. Certification Office (ACO), FAA, has the 202–741–6030, or go to: http:// SUPPLEMENTARY INFORMATION: authority to approve AMOCs for this AD, if www.archives.gov/federal-register/cfr/ibr- locations.html. Background requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, Issued in Renton, Washington, on The FAA issued an interim final rule send your request to your principal inspector September 6, 2016. on July 15, 2016 (81 FR 49158) to revise or local Flight Standards District Office, as Michael Kaszycki, its repair station rules to remove the appropriate. If sending information directly one-size-fits-all requirement of Acting Manager, Transport Airplane to the manager of the ACO, send it to the § 145.103(b) and provide an additional Directorate, Aircraft Certification Service. attention of the person identified in paragraph (k)(1) of this AD. Information may [FR Doc. 2016–22188 Filed 9–23–16; 8:45 am] limited rating category to cover work be emailed to: 9-ANM-Seattle-ACO-AMOC- BILLING CODE 4910–13–P not addressed by the existing 12 Requests@faa.gov. categories. These actions will assist the (2) Before using any approved AMOC, repair station industry by eliminating notify your appropriate principal inspector, DEPARTMENT OF TRANSPORTATION the costly housing requirement that is or lacking a principal inspector, the manager not necessary in many cases. of the local flight standards district office/ Federal Aviation Administration certificate holding district office. Discussion of Comments (3) An AMOC that provides an acceptable 14 CFR Part 145 The FAA received two comments level of safety may be used for any repair, from the Aeronautical Repair Station modification, or alteration required by this [Docket No.: FAA–2016–8744; Amdt. No. Association (ARSA) and Airbus. ARSA AD if it is approved by the Boeing 145–31] Commercial Airplanes Organization stated that it fully supported the Designation Authorization (ODA) that has RIN 2120–AK86 agency’s actions as the regulations were been authorized by the Manager, Seattle unclear and needed to be updated. ACO, to make those findings. To be Repair Stations; Response to Public ARSA noted that although the changed approved, the repair method, modification Comments rule still does not distinguish between deviation, or alteration deviation must meet AGENCY: Federal Aviation repair stations working on completed mstockstill on DSK3G9T082PROD with RULES the certification basis of the airplane, and the aircraft and those working on airframe Administration (FAA), DOT. approval must specifically refer to this AD. components, the removal of specified ACTION: Final rule; confirmation of (k) Related Information effective date and response to public housing for airframe ratings will For more information about this AD, comments. certainly allow for performance-based contact Tung Tran, Aerospace Engineer, compliance. ARSA also requested the Propulsion Branch, ANM–140S, FAA, Seattle SUMMARY: This action confirms the FAA consider removing § 145.61(b) in ACO, 1601 Lind Avenue SW., Renton, WA effective date and adopts as final the its entirety. ARSA asserted that it seems VerDate Sep<11>2014 20:07 Sep 23, 2016 Jkt 238001 PO 00000 Frm 00022 Fmt 4700 Sfmt 4700 E:\FR\FM\26SER1.SGM 26SER1


Document Created: 2018-02-09 13:22:30
Document Modified: 2018-02-09 13:22:30
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective October 31, 2016.
ContactTung Tran, Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6505; fax: 425-917-6590; email: [email protected]
FR Citation81 FR 65872 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR