Published 2016-06-01 · Federal Register document 2016-12443
Airworthiness Directives; The Boeing Company Airplanes
Publication summary
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777 airplanes. This AD was prompted by reports of unreliable performance of the fuel scavenge system. This AD requires changing the main fuel tank water scavenge system, center fuel tank fuel scavenge system, and certain electrical panels; doing related investigative actions; doing corrective actions if necessary; and, for certain airplanes, changing the fuel scavenge system to give redundant control of the center override/jettison fuel pumps and main jettison fuel pumps. We are issuing this AD to prevent fuel exhaustion and subsequent power loss of all engines due to loss of capability to scavenge fuel in the center fuel tank.
Why this record is shown
Source: Federal Register annual FAA metadata. Acquired 2026-09-03T22:23:51.853224+00:00. The title, summary and date are source facts.
- Source revision
- federal_register_ad_metadata_2016-48fe8cb6c57c00b7
- Source row
- results[183]
- Raw source SHA-256
- 48fe8cb6c57c00b74623eb2b71ad0abe73b95a424a8ac83fecd389da4d1e3a81
Final-rule publication
Recorded publication clauses
- AD identifier printed in this edition
- 2016-11-03
- Effective date printed in this edition
- 2016-07-06
Read 13 complete recorded clauses
Effective Date
(a) Effective Date
This AD is effective July 6, 2016.
Exact source excerpt. Text positions 19422–19482, end exclusive, in the original decoded publication. SHA-256: f6bbd89bbda69698ec80896e8b12e515a89b3e3c3a4c9a2466bdf892a90c6cb6
Affected ADs
(b) Affected ADs
None.
Exact source excerpt. Text positions 19482–19511, end exclusive, in the original decoded publication. SHA-256: 871a4afc60ceeae06e8010585055188633d616078500c45937092bfe892239c0
Applicability wording · Applicability
(c) Applicability
This AD applies to The Boeing Company Model 777-200, -200LR, -
300, -300ER, and -777F series airplanes, certificated in any
category, as identified in Boeing Special Attention Service Bulletin
777-28-0078, Revision 1, dated April 27, 2015.
Exact source excerpt. Text positions 19511–19777, end exclusive, in the original decoded publication. SHA-256: c73d7f95a211db3254f18b8e4b2172e2cb0ccc0bb77b0691832f25532c4dfd67
Subject
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
Exact source excerpt. Text positions 19777–19853, end exclusive, in the original decoded publication. SHA-256: 6111602521633281b663b982f9d7970bbd75c93ea6c799bbb174e2608c77dd8a
Unsafe Condition
(e) Unsafe Condition
This AD was prompted by reports of unreliable performance of the
fuel scavenge system. We are issuing this AD to prevent fuel
exhaustion and subsequent power loss of all engines due to loss of
capability to scavenge fuel in the center fuel tank.
Exact source excerpt. Text positions 19853–20129, end exclusive, in the original decoded publication. SHA-256: 7aa4e5dd3d65ceb0dec3d989896199fdd83a80bfdf4f3c22667e186ddf1b623b
Compliance
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
Exact source excerpt. Text positions 20129–20231, end exclusive, in the original decoded publication. SHA-256: 00fbfa31932483f627d0ce0a11cbd2e35e15d9231842b91ac85623ce533912d3
Fuel Scavenge System Changes, Wiring Changes, and Software Changes
(g) Fuel Scavenge System Changes, Wiring Changes, and Software Changes
For airplanes identified in Boeing Special Attention Service
Bulletin 777-28-0078, Revision 1, dated April 27, 2015, except for
Group 10 airplanes on which the actions specified in Boeing Service
Bulletin 777-28-0060; or Work Package 2 of the Accomplishment
Instructions of Boeing Service Bulletin 777-28-0062, have not been
accomplished: Within 60 months after the effective date of this AD,
do the applicable actions specified in paragraphs (g)(1) through
(g)(6) of this AD; and do all applicable related investigative and
corrective actions; in accordance with the Accomplishment
Instructions of Boeing Special Attention Service Bulletin 777-28-
0078, Revision 1, dated April 27, 2015. Do all applicable related
investigative and corrective actions before further flight.
(1) Do applicable mechanical changes to the main fuel tank water
scavenge system and center fuel tank fuel scavenge system.
(2) Install relays and related equipment on the P301 and P302
panels in the main equipment center.
(3) Do applicable wiring changes between the P105, P110, and
P301 panels, and between the P200, P205, P210, and P302 panels.
(4) Do wiring changes in the P105 panel.
(5) Install new electrical load management system 2 (ELMS2)
software.
(6) Do a functional test consisting of operational tests, a leak
test, system tests, and a fuel scavenge system functional test. If
any of the tests fail, before further flight accomplish corrective
actions and repeat the test and applicable corrective actions until
the test is passed.
Exact source excerpt. Text positions 20231–21871, end exclusive, in the original decoded publication. SHA-256: e46bb0632af898db19f816e583e86d41b50935da15b4a8207b361d310293b648
Concurrent Actions
(h) Concurrent Actions
(1) For Groups 13 through 16 airplanes, as identified in Boeing
Special Attention
[[Page 34871]]
Service Bulletin 777-28-0078, Revision 1, dated April 27, 2015,
concurrently with accomplishing the actions required by paragraph
(g) of this AD, install a new P301 panel on the left side of the
airplane, install a new P302 panel on the right side of the
airplane, and change the wiring; or perform bonding resistance
measurements and rework the airplane installations; as applicable;
in accordance with the Accomplishment Instructions of Boeing Service
Bulletin 777-28A0047, Revision 5, dated September 20, 2010; or
Boeing Service Bulletin 777-28A0047, Revision 6, dated July 11,
2013.
(2) For airplanes identified in Boeing Special Attention Service
Bulletin 777-28-0078, Revision 1, dated April 27, 2015, except for
Group 10 airplanes on which the actions described in Boeing Service
Bulletin 777-28-0060; or Work Package 2 of the Accomplishment
Instructions of Boeing Service Bulletin 777-28-0062, have not been
accomplished: Concurrently with accomplishing the requirements of
paragraph (g) of this AD, do wiring changes in the P110 and P210
panels, in accordance with the applicable Accomplishment
Instructions of GE Aviation Service bulletin 5000ELM-28-075,
Revision 1, dated August 5, 2014; and GE Aviation Service Bulletin
6000ELM-28-076, Revision 1, dated August 5, 2014.
Exact source excerpt. Text positions 21871–23305, end exclusive, in the original decoded publication. SHA-256: e2aad10628d7ecb16ec10845d71057623466305256782a9e640625406eb89104
Parts Installation Prohibition
(i) Parts Installation Prohibition
For Group 10 airplanes, as identified in Boeing Special
Attention Service Bulletin 777-28-0078, Revision 1, dated April 27,
2015, after completion of the actions required by paragraph (g) of
this AD, no person may install an auxiliary fuel tank on any Group
10 airplane.
Exact source excerpt. Text positions 23305–23621, end exclusive, in the original decoded publication. SHA-256: 8f2ca6c903237f973a13807ddfc9967a4bb1012618d2214a575d70e787a8b206
Credit for Previous Actions
(j) Credit for Previous Actions
(1) This paragraph provides credit for actions required by
paragraph (h)(1) of this AD, if those actions were performed before
May 26, 2011 (the effective date of AD 2011-09-05, Amendment 39-
16667 (77 FR 22305, April 21, 2011)), using a service bulletin
identified in paragraph (j)(1)(i) or (j)(1)(ii) of this AD, which
are not incorporated by reference in this AD.
(i) Boeing Service Bulletin 777-28A0047, Revision 3, dated June
11, 2009.
(ii) Boeing Service Bulletin 777-28A0047, Revision 4, dated May
20, 2010.
(2) This paragraph provides credit for actions required by
paragraph (g) of this AD, if those actions were performed before the
effective date of this AD using Boeing Special Attention Service
Bulletin 777-28-0078, dated September 4, 2014, which is not
incorporated by reference in this AD.
Exact source excerpt. Text positions 23621–24487, end exclusive, in the original decoded publication. SHA-256: 5ae792924b1ab0ee13e990f2f2a83c440030239cfe6fcefc4b65f3417ec1c5c6
Alternative Methods of Compliance (AMOCs)
(k) 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 (l)(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.
(4) For service information that contains steps that are labeled
as Required for Compliance (RC), the provisions of paragraphs
(k)(4)(i) and (k)(4)(ii) of this AD apply.
(i) The steps labeled as RC, including substeps under an RC step
and any figures identified in an RC step, must be done to comply
with the AD. An AMOC is required for any deviations to RC steps,
including substeps and identified figures.
(ii) Steps not labeled as RC may be deviated from using accepted
methods in accordance with the operator's maintenance or inspection
program without obtaining approval of an AMOC, provided the RC
steps, including substeps and identified figures, can still be done
as specified, and the airplane can be put back in an airworthy
condition.
Exact source excerpt. Text positions 24487–26537, end exclusive, in the original decoded publication. SHA-256: 9e4568e2a11034fcf509e7ae10aec0a4469da0097196404415638fb1db4e000b
Related Information
(l) Related Information
(1) For more information about this AD, contact Sue Lucier,
Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle ACO,
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6438;
fax: 425-917-6590; email: [email protected].
(2) Boeing service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (m)(3) and (m)(5) of this AD.
Exact source excerpt. Text positions 26537–26989, end exclusive, in the original decoded publication. SHA-256: 4ee5f1af39a2a41efed3194266d5f682afc1b09c537aec7c65c7a3fd8f40d0d3
Material Incorporated by Reference
(m) 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 Service Bulletin 777-28A0047, Revision 5, dated
September 20, 2010.
(ii) Boeing Service Bulletin 777-28A0047, Revision 6, dated July
11, 2013.
(iii) Boeing Special Attention Service Bulletin 777-28-0078,
Revision 1, dated April 27, 2015.
(iv) GE Aviation Service Bulletin 5000ELM-28-075, Revision 1,
dated August 5, 2014.
(v) GE Aviation Service Bulletin 6000ELM-28-076, Revision 1,
dated August 5, 2014.
(3) For Boeing 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.
(4) For GE Aviation service information identified in this AD,
contact GE Aviation Fleet Support, 1 Neumann Way, Cincinnati, OH
45215; telephone 513-552-3272; email: [email protected];
Internet http://www.geaviation.com.
(5) 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.
(6) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.
Exact source excerpt. Text positions 26989–28816, end exclusive, in the original decoded publication. SHA-256: 8ce5b27fd7a43f73001cc7443dde148c63d2e7f86d35a7997b4ab5c2e8a651dd
No replacement link has been established from this edition. The complete historical rule chain and current legal effect remain unknown.
Find all recorded historical references to AD 2016-11-03 · 0 printed reference observations in this pinned collection.
These are observations from one dated publication. Current legal status is unknown; aircraft applicability, installed configuration, compliance and burden require separate evidence. Missing or unparsed conditions remain unknown.
Why these observations are shown
They were extracted offline from the same immutable official HTML source as the complete recorded text. The dated source wording, original text coordinates and exact quote digests are retained. PDF/text agreement and current regulatory effect have not been qualified.
Observation revision: whole-ad-publication-clause-observations-1.0.1. Text SHA-256: 36b3c4044462600791454c78f464014082d62dee5ac1855e43e24bec821d5a98. Source manifest: f0d237b5aa36d0cf435b0bebab381c4280b142d93f22bcc8f43d0e597fe71930.
Official source · 2016-06-01
Publication text
This is the complete recorded text of this dated publication.
Current legal effect is unknown. Aircraft applicability, installed configuration and compliance require separate evidence. PDF/text agreement has not been evaluated.
Read the complete official publication text
[Federal Register Volume 81, Number 105 (Wednesday, June 1, 2016)]
[Rules and Regulations]
[Pages 34867-34871]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-12443]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2015-1273; Directorate Identifier 2014-NM-194-AD;
Amendment 39-18530; AD 2016-11-03]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
[[Page 34868]]
SUMMARY: We are adopting a new airworthiness directive (AD) for certain
The Boeing Company Model 777 airplanes. This AD was prompted by reports
of unreliable performance of the fuel scavenge system. This AD requires
changing the main fuel tank water scavenge system, center fuel tank
fuel scavenge system, and certain electrical panels; doing related
investigative actions; doing corrective actions if necessary; and, for
certain airplanes, changing the fuel scavenge system to give redundant
control of the center override/jettison fuel pumps and main jettison
fuel pumps. We are issuing this AD to prevent fuel exhaustion and
subsequent power loss of all engines due to loss of capability to
scavenge fuel in the center fuel tank.
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.
ADDRESSES: For Boeing 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.
For GE Aviation service information identified in this final rule,
contact GE Aviation Fleet Support, 1 Neumann Way, Cincinnati, OH 45215;
telephone 513-552-3272; email: [email protected]; Internet
http://www.geaviation.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-
1273.
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-
1273; 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: Sue Lucier, Aerospace Engineer,
Propulsion Branch, ANM-140S, FAA, Seattle Aircraft Certification Office
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6438; fax: 425-917-6590; email: [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to certain The Boeing Company
Model 777 airplanes. The NPRM published in the Federal Register on May
14, 2015 (80 FR 27601) (``the NPRM''). The NPRM was prompted by reports
of unreliable performance of the fuel scavenge system. The NPRM
proposed to require changing the main fuel tank water scavenge system,
center fuel tank fuel scavenge system, and certain electrical panels;
related investigative actions; and doing corrective actions if
necessary; and, for certain airplanes, changing the fuel scavenge
system to give redundant control of the center override/jettison fuel
pumps and main jettison fuel pumps. We are issuing this AD to prevent
fuel exhaustion and subsequent power loss of all engines due to loss of
capability to scavenge fuel in the center fuel tank.
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 Withdraw the NPRM
Lufthansa Cargo AG stated that the unsafe condition addressed in
the NPRM is not a safety concern and that mandating Boeing Special
Attention Service Bulletin 777-28-0078, dated September 4, 2014, is not
justified. Lufthansa Cargo AG stated that the main fuel tanks must be
fully loaded with fuel when a mission flight requires fuel in the
center tank. Lufthansa Cargo AG explained that if the fuel scavenge
system fails to scavenge the remaining fuel in the center tank, the
fuel in the main tanks is still available, and therefore there is no
safety concern.
We infer that the commenter requests we withdraw the NPRM. We do
not agree with the commenter's request. The failure of fuel scavenging
means that up to 2,700 pounds of fuel that is required by mission
planning would not be available if needed. The actions required by this
AD are necessary in order to prevent fuel exhaustion and subsequent
power loss of all engines due to loss of capability to scavenge fuel in
the center fuel tank. We have not changed this AD in this regard.
Requests To Remove Modification Requirement
Boeing, Aerologic GmbH, and British Airways (BAC) requested that we
remove the modification required by paragraph (g) of the proposed AD,
but instead mandate installation of airplane information management
system (AIMS) 2 software V14 or later to address the unsafe condition.
Aerologic GmbH and BAC stated that the unsafe condition can be
mitigated by incorporation of AIMS 2 software Vl4 or later, which
provides an engine indicating and crew alerting system (EICAS) advisory
message to alert the flightcrew of the status of the scavenge system
and the possibility of unusable trapped fuel. Boeing stated that the
trapped fuel quantity is well below reserve fuel requirements and that
the flightcrew can take appropriate actions to avoid a fuel exhaustion
condition.
We do not agree with the commenters' request. We worked with Boeing
extensively on this issue in order to define a reliable automated
solution, appropriate to address the severity of this safety issue.
While Boeing may disagree, we have determined that relying solely on
AIMS 2 software V14 or later is not sufficient to address the
identified unsafe condition under all flight conditions. The approach
in Boeing Special Attention Service Bulletin 777-28-0078, Revision 1,
dated April 27, 2015, yields a higher confidence of fully mitigating
the safety issue since a robust automated software solution (i.e.,
installing electrical load management system 2 (ELMS 2) software)
removes the potential for human error to undermine the safety
mitigation. We have not changed this AD in this regard.
Request To Delay AD Issuance
Boeing requested that we delay issuance of the final rule until the
modified scavenge system is certified on Model 777 airplanes equipped
with an auxiliary fuel tank. Boeing stated that this will allow this
final rule to require the accomplishment of Boeing Service Bulletin
777-28-0078 on all applicable airplanes and avoid the need for multiple
ADs on the same subject.
We infer the commenter is requesting that we delay issuance of the
final rule until a revision of Boeing Service Bulletin 777-28-0078 is
available for
[[Page 34869]]
reference in the final rule. We do not agree with the commenter's
request. We do not have a definitive date when the modified scavenge
system will be certified on Model 777 airplanes equipped with an
auxiliary fuel tank and the related service bulletin revision will be
available. To delay this action would be inappropriate, since we have
determined that an unsafe condition exists. We have also determined
that it is not warranted to delay this final rule in order to avoid
issuance of multiple ADs on the same subject. We have not changed this
AD in this regard.
Requests To Incorporate New Service Information and Provide Credit
Boeing, All Nippon Airways (ANA), Delta Airlines (DAL), Emirates
Airline, FedEx Express, and United Airlines (UAL) requested that we
revise the NPRM to incorporate Boeing Special Attention Service
Bulletin 777-28-0078, Revision 1, dated April 27, 2015. Boeing
requested that we provide credit for prior actions done using Boeing
Special Attention Service Bulletin 777-28-0078, dated September 4,
2014.
We agree with the commenters' requests. Boeing Special Attention
Service Bulletin 777-28-0078, Revision 1, dated April 27, 2015,
provides revised instructions and top-kits to accomplish the
modification. No new work is required by this revision. We have revised
paragraphs (c), (g), (h)(1), (h)(2), and (i) of this AD to refer to
Boeing Special Attention Service Bulletin 777-28-0078, Revision 1,
dated April 27, 2015. We have added new paragraph (j)(2) of this AD to
provide credit for actions required by paragraph (g) of this AD, if
those actions were performed before the effective date of this final
rule using Boeing Special Attention Service Bulletin 777-28-0078, dated
September 4, 2014. We have redesignated paragraph (j) of the proposed
AD as paragraph (j)(1) in this AD.
Request To Revise Compliance Time
Boeing requested that we remove the wording ``prior to'' in
paragraph (h)(2) of the proposed AD, which would require actions to be
done concurrently with the actions specified in paragraph (g) of the
proposed AD.
We agree with the commenter's request. Boeing Special Attention
Service Bulletin 777-28-0078, Revision 1, dated April 27, 2015,
specifies concurrent, not prior, accomplishment of the service
information specified in paragraph (h) of this AD. We have revised
paragraph (h) of this AD accordingly, which does not expand the
requirements of this AD.
Requests To Incorporate Boeing Information Notice (IN) for New Service
Bulletin, for Part Substitution, and for Error Resolution
ANA, DAL, Emirates Airline, FedEx, and UAL requested that we
include in the NPRM the information specified in Boeing IN 777-28-0078
IN 02. FedEx also requested that we include in the NPRM the information
specified in Boeing IN 777-28-0078 IN 03. ANA and Emirates Airline
requested that a new Boeing Service Bulletin (Revision 2 of Boeing
Service Bulletin 777-28-0078) be mandated if possible.
The commenters stated that Boeing IN 777-28-0078 IN 02 clarifies
the instructions in Boeing Special Attention Service Bulletin 777-28-
0078, and also indicates that Boeing Special Attention Service Bulletin
777-28-0078 will be revised to incorporate those clarifications.
ANA requested that a cable assembly with a different lock wire
length (part number BACC13AT3K()) be allowed for use in place of part
number BACCI3AT3Kl2 for the actions specified in paragraph (g) of the
proposed AD. ANA also identified an error in Boeing Special Attention
Service Bulletin 777-28-0078, dated September 4, 2014, regarding the
position of the connector D11007P.
We do not agree with the commenters' requests. We have determined
that Boeing Special Attention Service Bulletin 777-28-0078, Revision 1,
dated April 27, 2015, is adequate to correct the identified unsafe
condition, and the errors will not affect compliance with this AD. The
information notices (IN) are issued to provide clarity and are not
required to accomplish the required actions. We are working with Boeing
to include the IN information and part number substitution and other
corrections in Revision 2 of Boeing Service Bulletin 777-28-0078. Under
the provisions of paragraph (k) of this AD, once Revision 2 of Boeing
Service Bulletin 777-28-0078 is issued, we will consider requests to
approve it as an alternative method of compliance (AMOC) with this AD.
In addition, AMOCs for part number substitutions can also be requested
through the provisions of paragraph (k) of this AD. We have not changed
this AD in this regard.
Request To Address an Integer Overflow Error
An anonymous commenter stated that Model 777 airplanes have an
integer overflow error when being operated over a certain number of
days. The commenter stated that we should require the computer to be
reset before any of the overflow errors happen during flight.
We do not agree with the commenter's request. This issue does not
appear related to the identified unsafe condition that is the subject
of this final rule. However, we will investigate this situation to make
sure that the issue stated by the commenter does not exist or is
addressed in a proper manner. We have not changed this final rule in
this regard.
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:
<bullet> [Agr]re consistent with the intent that was proposed in
the NPRM for correcting the unsafe condition; and
<bullet> 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
Boeing has issued the following service information.
<bullet> Boeing Service Bulletin 777-28A0047, Revision 5, dated
September 20, 2010. This service information describes procedures for
installing new P301 and P302 panels, changing the wiring, and
performing bonding resistance measurements.
<bullet> Boeing Service Bulletin 777-28A0047, Revision 6, dated
July 11, 2013. This service information describes procedures for
installing new P301 and P302 panels, changing the wiring, and
performing bonding resistance measurements.
<bullet> Boeing Special Attention Service Bulletin 777-28-0078,
Revision 1, dated April 27, 2015. This service information describes
procedures for doing mechanical changes to the main fuel tank water
scavenge system and center fuel tank fuel scavenge system; doing wiring
changes between the P105, P110 and P301 panels, and between the P200,
P205, P210 and P302 panels; doing wiring changes in the P105 panel;
installing new electrical load management system 2 (ELMS2) software;
and doing functional testing.
GE Aviation has issued the following service information.
<bullet> GE Aviation Service Bulletin 5000ELM-28-075, Revision 1,
dated
[[Page 34870]]
August 5, 2014. This service information describes procedures for doing
wiring changes in the P110 panel.
<bullet> GE Aviation Service Bulletin 6000ELM-28-076, Revision 1,
dated August 5, 2014. This service information describes procedures for
doing wiring changes in the P210 panel.
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 55 airplanes of U.S. registry.
We estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Fuel system modification.............. 200 work-hours x $85 per $68,535 $85,535 $4,704,425
hour = $17,000.
P110 and P210 panel modification...... 2 work-hours x $85 per 0 170 9,350
hour =$170.
----------------------------------------------------------------------------------------------------------------
We have received no definitive data that will enable us to provide
cost estimates for the on-condition actions specified in this AD.
According to the manufacturer, some of the costs of this AD may be
covered under warranty, thereby reducing the cost impact on affected
individuals. We do not control warranty coverage for affected
individuals. As a result, we have included all costs in our cost
estimate.
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):
2016-11-03 The Boeing Company: Amendment 39-18530; Docket No. FAA-
2015-1273; Directorate Identifier 2014-NM-194-AD.
(a) Effective Date
This AD is effective July 6, 2016.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company Model 777-200, -200LR, -
300, -300ER, and -777F series airplanes, certificated in any
category, as identified in Boeing Special Attention Service Bulletin
777-28-0078, Revision 1, dated April 27, 2015.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Unsafe Condition
This AD was prompted by reports of unreliable performance of the
fuel scavenge system. We are issuing this AD to prevent fuel
exhaustion and subsequent power loss of all engines due to loss of
capability to scavenge fuel in the center fuel tank.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Fuel Scavenge System Changes, Wiring Changes, and Software Changes
For airplanes identified in Boeing Special Attention Service
Bulletin 777-28-0078, Revision 1, dated April 27, 2015, except for
Group 10 airplanes on which the actions specified in Boeing Service
Bulletin 777-28-0060; or Work Package 2 of the Accomplishment
Instructions of Boeing Service Bulletin 777-28-0062, have not been
accomplished: Within 60 months after the effective date of this AD,
do the applicable actions specified in paragraphs (g)(1) through
(g)(6) of this AD; and do all applicable related investigative and
corrective actions; in accordance with the Accomplishment
Instructions of Boeing Special Attention Service Bulletin 777-28-
0078, Revision 1, dated April 27, 2015. Do all applicable related
investigative and corrective actions before further flight.
(1) Do applicable mechanical changes to the main fuel tank water
scavenge system and center fuel tank fuel scavenge system.
(2) Install relays and related equipment on the P301 and P302
panels in the main equipment center.
(3) Do applicable wiring changes between the P105, P110, and
P301 panels, and between the P200, P205, P210, and P302 panels.
(4) Do wiring changes in the P105 panel.
(5) Install new electrical load management system 2 (ELMS2)
software.
(6) Do a functional test consisting of operational tests, a leak
test, system tests, and a fuel scavenge system functional test. If
any of the tests fail, before further flight accomplish corrective
actions and repeat the test and applicable corrective actions until
the test is passed.
(h) Concurrent Actions
(1) For Groups 13 through 16 airplanes, as identified in Boeing
Special Attention
[[Page 34871]]
Service Bulletin 777-28-0078, Revision 1, dated April 27, 2015,
concurrently with accomplishing the actions required by paragraph
(g) of this AD, install a new P301 panel on the left side of the
airplane, install a new P302 panel on the right side of the
airplane, and change the wiring; or perform bonding resistance
measurements and rework the airplane installations; as applicable;
in accordance with the Accomplishment Instructions of Boeing Service
Bulletin 777-28A0047, Revision 5, dated September 20, 2010; or
Boeing Service Bulletin 777-28A0047, Revision 6, dated July 11,
2013.
(2) For airplanes identified in Boeing Special Attention Service
Bulletin 777-28-0078, Revision 1, dated April 27, 2015, except for
Group 10 airplanes on which the actions described in Boeing Service
Bulletin 777-28-0060; or Work Package 2 of the Accomplishment
Instructions of Boeing Service Bulletin 777-28-0062, have not been
accomplished: Concurrently with accomplishing the requirements of
paragraph (g) of this AD, do wiring changes in the P110 and P210
panels, in accordance with the applicable Accomplishment
Instructions of GE Aviation Service bulletin 5000ELM-28-075,
Revision 1, dated August 5, 2014; and GE Aviation Service Bulletin
6000ELM-28-076, Revision 1, dated August 5, 2014.
(i) Parts Installation Prohibition
For Group 10 airplanes, as identified in Boeing Special
Attention Service Bulletin 777-28-0078, Revision 1, dated April 27,
2015, after completion of the actions required by paragraph (g) of
this AD, no person may install an auxiliary fuel tank on any Group
10 airplane.
(j) Credit for Previous Actions
(1) This paragraph provides credit for actions required by
paragraph (h)(1) of this AD, if those actions were performed before
May 26, 2011 (the effective date of AD 2011-09-05, Amendment 39-
16667 (77 FR 22305, April 21, 2011)), using a service bulletin
identified in paragraph (j)(1)(i) or (j)(1)(ii) of this AD, which
are not incorporated by reference in this AD.
(i) Boeing Service Bulletin 777-28A0047, Revision 3, dated June
11, 2009.
(ii) Boeing Service Bulletin 777-28A0047, Revision 4, dated May
20, 2010.
(2) This paragraph provides credit for actions required by
paragraph (g) of this AD, if those actions were performed before the
effective date of this AD using Boeing Special Attention Service
Bulletin 777-28-0078, dated September 4, 2014, which is not
incorporated by reference in this AD.
(k) 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 (l)(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.
(4) For service information that contains steps that are labeled
as Required for Compliance (RC), the provisions of paragraphs
(k)(4)(i) and (k)(4)(ii) of this AD apply.
(i) The steps labeled as RC, including substeps under an RC step
and any figures identified in an RC step, must be done to comply
with the AD. An AMOC is required for any deviations to RC steps,
including substeps and identified figures.
(ii) Steps not labeled as RC may be deviated from using accepted
methods in accordance with the operator's maintenance or inspection
program without obtaining approval of an AMOC, provided the RC
steps, including substeps and identified figures, can still be done
as specified, and the airplane can be put back in an airworthy
condition.
(l) Related Information
(1) For more information about this AD, contact Sue Lucier,
Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle ACO,
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6438;
fax: 425-917-6590; email: [email protected].
(2) Boeing service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (m)(3) and (m)(5) of this AD.
(m) 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 Service Bulletin 777-28A0047, Revision 5, dated
September 20, 2010.
(ii) Boeing Service Bulletin 777-28A0047, Revision 6, dated July
11, 2013.
(iii) Boeing Special Attention Service Bulletin 777-28-0078,
Revision 1, dated April 27, 2015.
(iv) GE Aviation Service Bulletin 5000ELM-28-075, Revision 1,
dated August 5, 2014.
(v) GE Aviation Service Bulletin 6000ELM-28-076, Revision 1,
dated August 5, 2014.
(3) For Boeing 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.
(4) For GE Aviation service information identified in this AD,
contact GE Aviation Fleet Support, 1 Neumann Way, Cincinnati, OH
45215; telephone 513-552-3272; email: [email protected];
Internet http://www.geaviation.com.
(5) 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.
(6) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Renton, Washington, on May 18, 2016.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2016-12443 Filed 5-31-16; 8:45 am]
BILLING CODE 4910-13-P
Why this text is shown
The complete text was extracted from the official GovInfo HTML edition for this publication. Acquired 2026-10-09T02:27:37.024075+00:00. Text extraction preserves the recorded source wording; it does not determine current requirements.
Open the captured official edition
- Source SHA-256
- e6eccf675873f7d34c60c73fb83f106a9eabbd26f51216f916b145bc8d207c88
- Text SHA-256
- 36b3c4044462600791454c78f464014082d62dee5ac1855e43e24bec821d5a98
Return to the full metadata catalog · Search complete publication text · Explore retained publication text and evidence
Coverage and limits
These are dated publication metadata, recorded clauses and literal source observations. Word, model-label, header and reference matches do not establish current legal effect, manufacturer/model identity, aircraft applicability, installed configuration or compliance.
The collection uses 33 explicit annual source snapshots. Source captures and operative-text qualifications have separate states. Missing information remains unknown.