Home/Federal/Federal Register/2022-26079

Rule2022-26079

Airworthiness Directives; The Boeing Company Airplanes

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published

November 30, 2022

Effective

January 4, 2023

Issuing agencies

Transportation DepartmentFederal Aviation Administration

Abstract

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777 airplanes. This AD was prompted by reports of discrepancies between the center wing tank (CWT) fuel quantity, as indicated by the fuel quantity indicating system (FQIS), and the refueling truck uploaded fuel amount, followed by certain engine-indicating and crew-alerting system (EICAS) messages. This AD requires installing new software in the fuel quantity processor unit (FQPU), or replacing the FQPU with one that includes new software, depending on airplane configuration; doing a software version check; and doing a FQPU operational check, depending on airplane configuration. This AD also prohibits the installation of certain FQPUs on certain airplanes. The FAA is issuing this AD to address the unsafe condition on these products.

Full Text

<html>
<head>
<title>Federal Register, Volume 87 Issue 229 (Wednesday, November 30, 2022)</title>
</head>
<body><pre>
[Federal Register Volume 87, Number 229 (Wednesday, November 30, 2022)]
[Rules and Regulations]
[Pages 73452-73456]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-26079]

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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-0103; Project Identifier AD-2021-00977-T;
Amendment 39-22238; AD 2022-23-11]
RIN 2120-AA64

Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain The Boeing Company Model 777 airplanes. This AD was prompted by
reports of discrepancies between the center wing tank (CWT) fuel
quantity, as indicated by the fuel quantity indicating system (FQIS),
and the refueling truck uploaded fuel amount, followed by certain
engine-indicating and crew-alerting system (EICAS) messages. This AD
requires installing new software in the fuel quantity processor unit
(FQPU), or replacing the FQPU with one that includes new software,
depending on airplane configuration; doing a software version check;
and doing a FQPU operational check, depending on airplane
configuration. This AD also prohibits the installation of certain FQPUs
on certain airplanes. The FAA is issuing this AD to address the unsafe
condition on these products.

DATES: This AD is effective January 4, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 4,
2023.

ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-0103; or in person at Docket Operations between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD
docket contains this final rule, any comments received, and other
information. The address for Docket Operations is U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
<bullet> For service information identified in this final rule,
contact Kevin Nguyen, Aerospace Engineer, Propulsion Section, FAA,
Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone
and fax: 206-231-3555; email: <a href="/cdn-cgi/l/email-protection#bed5dbc8d7d090d0d9cbc7dbd0fed8dfdf90d9d1c8">[email&#160;protected]</a>.
<bullet> You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200 South
216th St., Des Moines, WA. For information on the availability of this
material at the FAA, call 206-231-3195. It is also available at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2022-0103.

FOR FURTHER INFORMATION CONTACT: Kevin Nguyen, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; phone and fax: 206-231-3555; email:
<a href="/cdn-cgi/l/email-protection#771c12011e19591910020e12193711161659101801">[email&#160;protected]</a>.

SUPPLEMENTARY INFORMATION:

Background

The FAA 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 March 21, 2022 (87 FR 15902). The NPRM was prompted by reports of
discrepancies between the CWT fuel quantity, as indicated by the FQIS,
and the refueling truck uploaded fuel amount, followed by certain EICAS
messages. In the NPRM, the FAA proposed to require installing new
software in the FQPU, or replacing the FQPU with one that includes new
software, depending on airplane configuration; doing a software version
check; and doing a FQPU operational check, depending on airplane
configuration. In the NPRM, the FAA also proposed to prohibit the
installation of certain FQPUs on certain airplanes. The FAA is issuing
this AD to address discrepancies in the CWT FQIS, which can result in
an airplane being dispatched with insufficient fuel in the CWT and with
the flight crew unaware of the insufficient fuel prior to departure.
This condition, coupled with continued flight to the destination
airport after receiving EICAS messages

[[Page 73453]]

while in route to the destination, could result in fuel exhaustion and
subsequent power loss to all engines, thereby resulting in the
inability to land at the destination airport or at a diversion airport,
possibly leading to flight into terrain.

Discussion of Final Airworthiness Directive

Comments

The FAA received comments from Air Line Pilots Association,
International (ALPA), FedEx Express, and United Airlines (UAL), who
supported the NPRM without change.
The FAA received additional comments from seven commenters,
including Cathay Pacific Airways (Cathay), Air France (AFA), Korean Air
(KAL), Boeing, British Airways (BAB), Ontic, and American Airlines
(AAL). The following presents the comments received on the NPRM and the
FAA's response to each comment.

Request To Remove or Modify Paragraph (j) Parts Installation
Prohibition

Boeing requested that the FAA remove the parts installation
prohibition specified in paragraph (j) of the proposed AD. Boeing
stated that the safety rationale for immediate prohibition of
installation of FQIS-1 FQPU P/N 0320KPU01 is unclear, and that the
actions and compliance times outlined in paragraph (g) of the proposed
AD are sufficient without the additional prohibitions identified in
paragraph (j) of the proposed AD. Boeing stated that operators have
indicated a need to continue installing FQIS-1 FQPU part number (P/N)
0320KPU01 within the compliance period prior to availability of
replacement FQIS-2 FQPUs P/Ns 0335KPU01, 0335KPU02, and 0335KPU03; and
that prohibiting the installation of a FQIS-1 FQPU would present an
unnecessary hardship due to insufficient availability of FQIS-2 FQPU.
Boeing added that the statement ``This proposed AD would also prohibit
the installation of certain FQPUs on certain airplanes'' in the Summary
of the NPRM should also be removed.
AFA requested that the FAA modify the parts prohibition specified
in paragraph (j) of the proposed AD in order to give more flexibility
and allow installation of FQIS-1 FQPU P/N 0320KPU01 on airplanes that
have not yet been retrofitted in accordance with Boeing Alert
Requirements Bulletin 777-28A0090 RB, dated March 30, 2021. AFA
explained that unplanned removal (e.g., due to failure or
troubleshooting) of FQIS-1 FQPU would necessitate replacement with
FQIS-2 FQPU, but demand for that cannot be met by the manufacturer. AFA
stated that if the installation prohibition per paragraph (j) of the
proposed AD is adopted as is, airplanes would be grounded because of
the lack of required serviceable spares. AFA asserted that the safety
risk is already addressed by AD 2020-11-11, Amendment 39-19915 (85 FR
34090, June 3, 2020) (AD 2020-11-11).
KAL requested that the FAA consider removing the parts installation
prohibition specified in paragraph (j) of this proposed AD, or clarify
and mitigate the parts installation prohibition conditions. KAL said
the vendor was not able to provide the FQIS-2 FQPU until December 2023.
BAB proposed removing paragraph (j) of the proposed AD (the ``Parts
Installation Prohibition,'' requirement) because the forecast supply of
upgraded FQPUs (FQIS-2 FQPUs P/Ns 0335KPU01, 0335KPU02, and 0335KPU03)
does not support the requirement, and the resulting cost of aircraft
grounding is disproportionate to the fleet safety risk mitigation
provided to the fleet by the proposed AD. BAB said the action is not
justified; is not required for fleet safety; and was not required,
recommended, or communicated to operators in the Boeing Alert
Requirements Bulletin 777-28A0090 RB, dated March 30, 2021, which the
FAA has previously approved.
BAB explained that due to material shortages, the manufacturer is
forecasting that deliveries of the new FQPUs will not commence until
the second quarter of 2023. Should the AD be published with the
prohibition specified in paragraph (j) of the proposed AD, BAB asserted
that there will be a significant risk of grounding aircraft due to lack
of availability of FQIS-2 FQPU P/N 0335KPU03. BAB also said the
mandated integrated refuel panel (IRP) door cycling procedure required
by AD 2020-11-11 is performed for all fuel uplifts regardless of
whether the CWT is being utilized, and will continue until Boeing Alert
Requirements Bulletin 777-28A0090 RB, dated March 30, 2021, has been
accomplished on the entire fleet. BAB concluded that the risk of
departing with less than the minimum fuel for the mission has been
effectively mitigated since 2020 with this mandated IRP door cycling
procedure.
AAL requested that the FAA allow replacement of FQIS-1 FQPU P/N
0320KPU01 with the same FQPU while the fleet is being upgraded to the
FQIS-2 FQPU (e.g., P/N 0335KPU03), as specified in Boeing Alert
Requirements Bulletin 777-28A0090 RB, dated March 30, 2021. AAL noted
that the parts installation prohibition specified in paragraph (j) of
the proposed AD specifies that, for certain airplanes, ``as of the
effective date of the AD,'' FQIS-1 FQPU P/N 0320KPU01 may not be
installed. AAL said that the manufacturer is unable to meet delivery
schedules. AAL noted it will likely not have the spare FQIS-2 FQPU P/N
0335KPU03 necessary for out-of-service events caused by failure of
FQIS-1 FQPU P/N 0320KPU01, potentially causing extended down time. AAL
explained that the fuel cycling procedure required by AD 2020-11-11
will continue while the upgrade is in progress, eliminating fuel drop
events potentially caused by the FQIS-1 FQPU.
The FAA partially agrees with the request to modify paragraph (j)
of this AD because, as the commenters explained, there is a limited
availability of FQIS-2 FQPU, and AD 2020-11-11 is still in effect for
airplanes with FQIS-1 FQPU installed. The FAA agrees to provide relief
to the parts installation prohibition specified in paragraph (j) of
this AD by allowing airplanes identified in Group 1 of Boeing Alert
Requirements Bulletin 777-28A0090 RB, dated March 30, 2021, that still
have FQIS-1 FQPU installed to continue installing FQIS-1 FQPU P/N
0320KPU01 within the 30-month compliance time. For those airplanes,
FQIS-1 FQPU must be replaced by FQIS-2 FQPU by the end of the
compliance time as required by paragraph (g) of this AD, which mandates
Boeing Alert Requirements Bulletin 777-28A0090 RB, dated March 30,
2021. Note that paragraph (h) of this AD (``Exceptions to Service
Information Specifications'') defines the compliance time as 30 months
after ``the effective date of this AD'' rather than after ``the
original issue date of Requirements Bulletin 777-28A0090 RB.''
The FAA disagrees with removing paragraph (j) of this AD completely
because the installation of FQIS-1 FQPU onto Group 1 airplanes that
already have the FQIS-2 FQPU installed must be prevented, even when
there is an unplanned removal of the FQPU.
Paragraph (j) of this AD has been revised to read ``For Group 1
airplanes identified in Boeing Alert Requirements Bulletin 777-28A0090
RB, dated March 30, 2021, that have a FQIS-2 fuel quantity processor
unit (FQPU) part number (P/N) 0335KPU01, 0335KPU02, or 0335KPU03
installed: As of the effective date of this AD, no person may install a
FQIS-1 FQPU P/N 0320KPU01

[[Page 73454]]

(Boeing P/N S345W001-010), on any airplane.''

Request To Extend Compliance Time

AFA requested a reasonable timescale for replacement of FQIS-1 FQPU
P/N 0320KPU01 due to the shortage of FQIS-2 FQPU replacement units.
KAL also requested that the FAA provide a compliance time long
enough (e.g., a compliance time extension) to support the shortage of
FQPU (the FAA infers the commenter is referring to FQIS-2 FQPU) because
of lack of availability of replacement units. KAL said the vendor was
not able to provide the FQIS-2 FQPU until December 2023, and they are
unable to meet the compliance deadline of ``September 2023.'' The FAA
infers that KAL is measuring the 30-month compliance time from March
30, 2021, the publication date of Boeing Alert Requirements Bulletin
777-28A0090 RB, dated March 30, 2021.
Ontic stated that the limited availability of FQIS-2 FQPU could not
support the fleet of aircraft still in operation within the 30 months
compliance time specified in Boeing Alert Requirements Bulletin 777-
28A0090 RB, dated March 30, 2021. Ontic further stated that it
understands the 30-month compliance time typically commences on the
release of the AD, and not the service information. The FAA infers a
request by Ontic to extend the compliance time if it commences on the
publication date of Boeing Alert Requirements Bulletin 777-28A0090 RB,
dated March 30, 2021.
The FAA disagrees with the request to change the compliance time of
30 months to accomplish Boeing Alert Requirements Bulletin 777-28A0090
RB, dated March 30, 2021. The FAA has confirmed with the manufacturers
that a sufficient supply of FQIS-2 FQPU would be available to meet the
compliance time if replacement of a FQIS-1 FQPU with a serviceable
FQIS-1 FQPU is done within that time. As stated previously, the 30-
month compliance time commences on the effective date of this AD, as
specified in paragraph (h) of this AD. If operators encounter
difficulty with accomplishing the actions required by this AD within
the compliance time, they may request an alternative method of
compliance (AMOC) in accordance with paragraph (k) of this AD. This AD
has not been changed regarding this request.

AMOC Guidance From Boeing

Boeing offered to provide guidance for operators who request
continued use of AD 2020-11-11 as an AMOC to this AD. Boeing said that
individual airlines operate Model 777 airplanes differently, therefore
a global AMOC is not practical for this AD. Boeing advised that
considerations for requesting an AMOC would include frequency and
quantity of center tank fuel loaded for mission profiles, planned end-
of-life retirement of the airplane, and other factors impacting
individual airline operations.
The FAA supports the manufacturer's offer of guidance. Operators
may request AMOCs under the provisions of paragraph (k) of this AD.
This AD has not been changed regarding this request.

Request To Revise the Summary Section

Boeing requested that the Summary section of the NPRM be revised
for clarity. Boeing stated that the Summary description is inconsistent
with the service bulletin regarding the operational check and the
software version check. Boeing explained that the software version
check should be accomplished when the software is downloaded to the
FQPU onboard, and when a new FQPU is installed on the airplane. Boeing
added that the operational check is only required when installing a new
or updated FQPU on the airplane.
The FAA agrees to the request to revise the Summary section of this
AD for the reason provided by the commenter. The third sentence of the
Summary has been changed by adding ``, depending on airplane
configuration'' to the end of the sentence.

Recommendation To Modify Background Paragraphs

Boeing recommended that the technical description of the design
flaw in the Background paragraphs be refined for clarity and reduce the
possibility of reader misperception. Boeing provided revised language
for the paragraph discussing the design flaw. Boeing also asked that
the paragraph discussing the events where there was incorrect fuel
quantity information be removed; that paragraph includes a description
of the situation where the FQIS could indicate less than the actual
fuel quantity in the CWT.
The FAA disagrees with this recommendation because the referenced
information provided in the Background paragraphs of the NPRM is not
repeated in the final rule. Furthermore, the information given
adequately describes the design flaw in the FQIS, including the one in-
service event where more fuel was added to the center tank than
required for the mission. This AD has not been changed with regard to
this request.

Request for Further Information About Software Loading and the AMOC
Process

Cathay asked for the lead time for an AMOC to retain the door
cycling procedure of AD 2020-11-11. Cathay also asked whether a certain
Boeing information notice will be part of the AD requirement because of
difficulties encountered with software loading.
The FAA advises that the standard response time for an AMOC
application is 30 days. AMOC requests may be submitted as indicated in
paragraph (k) of this AD. This AD requires only that FQPU software be
upgraded or the FQPU replaced. There is no requirement regarding how
the software upgrade is to be accomplished. Operators may refer to the
Boeing information notice without requesting an AMOC. This AD has not
been revised in this regard.

Conclusion

The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting this AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these products. Except for minor editorial changes, and
any other changes described previously, this AD is adopted as proposed
in the NPRM. None of the changes will increase the economic burden on
any operator.

Related Service Information Under 1 CFR Part 51

The FAA reviewed Boeing Alert Requirements Bulletin 777-28A0090 RB,
dated March 30, 2021. This service information specifies procedures for
a check of maintenance or delivery records or an inspection to
determine the part number of the FQPU for Group 1 airplanes. For Group
1 airplanes with a FQIS-1 FQPU, this service information specifies
procedures for removing the existing FQPU; installing certain FQIS-2
FQPU with upgraded software; and doing a software version check and
FQPU operational check. For Group 1 airplanes with a FQIS-2 FQPU and
Group 2 airplanes, this service information specifies procedures for
upgrading the FQPU software, and doing a software version check.
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 ADDRESSES.

Costs of Compliance

The FAA estimates that this AD affects 257 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:

[[Page 73455]]

Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Records review or inspection of FQPU 1 work-hour x $85 per $0 $85 $12,155
part number for Group 1 airplanes hour = $85.
(143 airplanes).
Group 1 with FQIS-1 FQPU (125 1 work-hour x $85 per 48,300 48,385 6,048,125
airplanes): Replace FQPU with FQIS-2 hour = $85.
FQPU, and do software and FQPU checks.
Group 1 with FQIS-2 FQPU and Group 2 1 work-hour x $85 per 0 85 11,220
(132 airplanes): Upgrade software and hour = $85.
do software check.
----------------------------------------------------------------------------------------------------------------

The FAA has included all known costs in its cost estimate.
According to the software manufacturer, however, some or all of the
costs of this AD may be covered under warranty, thereby reducing the
cost impact on affected operators.

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.
The FAA is 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) Will not affect intrastate aviation in Alaska, and
(3) 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 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:

2022-23-11 The Boeing Company: Amendment 39-22238; Docket No. FAA-
2022-0103; Project Identifier AD-2021-00977-T.

(a) Effective Date

This airworthiness directive (AD) is effective January 4, 2023

(b) Affected ADs

This AD affects AD 2020-11-11, Amendment 39-19915 (85 FR 34090,
June 3, 2020) (AD 2020-11-11).

This AD applies to The Boeing Company Model 777-200, -200LR, -
300, -300ER, and 777F series airplanes, certificated in any
category, Group 1 and Group 2 as identified in Boeing Alert
Requirements Bulletin 777-28A0090 RB, dated March 30, 2021.

(d) Subject

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

(e) Unsafe Condition

This AD was prompted by reports of discrepancies between the
center wing tank (CWT) fuel quantity, as indicated by the fuel
quantity indicating system (FQIS), and the actual amount uploaded
from the refueling truck. The FAA is issuing this AD to address
discrepancies in the CWT FQIS, which can result in an airplane being
dispatched with insufficient fuel in the CWT and with the flight
crew unaware of the insufficient fuel prior to departure. This
condition, coupled with continued flight to the destination airport
after receiving engine-indicating and crew-alerting system (EICAS)
messages while in route to the destination, could result in fuel
exhaustion and subsequent power loss to all engines, thereby
resulting in the inability to land at the destination airport or at
a diversion airport, possibly leading to flight into terrain.

(f) Compliance

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

(g) Required Actions

Except as specified by paragraph (h) of this AD: At the
applicable times specified in the ``Compliance'' paragraph of Boeing
Alert Requirements Bulletin 777-28A0090 RB, dated March 30, 2021, do
all applicable actions identified in, and in accordance with, the
Accomplishment Instructions of Boeing Alert Requirements Bulletin
777-28A0090 RB, dated March 30, 2021.

Note 1 to paragraph (g): Guidance for accomplishing the actions
required by this AD can be found in Boeing Alert Service Bulletin
777-28A0090, dated March 30, 2021, which is referred to in Boeing
Alert Requirements Bulletin 777-28A0090 RB, dated March 30, 2021.

(h) Exceptions to Service Information Specifications

Where the Compliance Time column of the tables in the
``Compliance'' paragraph of Boeing Alert Requirements Bulletin 777-
28A0090 RB, dated March 30, 2021, uses the phrase ``the original
issue date of Requirements Bulletin 777-28A0090 RB,'' this AD
requires using ``the effective date of this AD.''

(i) Terminating Action for AD 2020-11-11

Accomplishing the actions required by this AD on all affected
airplanes in an operator's fleet terminates the requirements of AD
2020-11-11 for that fleet.

(j) Parts Installation Prohibition

For Group 1 airplanes identified in Boeing Alert Requirements
Bulletin 777-28A0090 RB, dated March 30, 2021, that have a FQIS-2
fuel quantity processor unit (FQPU) part number (P/N) 0335KPU01,
0335KPU02, or 0335KPU03 installed: As of the effective date of this
AD, no person may install a FQIS-1 FQPU P/N 0320KPU01 (Boeing P/N
S345W001-010) on any airplane.

(k) Alternative Methods of Compliance (AMOCs)

(1) The Manager, Seattle ACO Branch, FAA, has the authority to
approve AMOCs

[[Page 73456]]

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 responsible Flight Standards Office, as
appropriate. If sending information directly to the manager of the
certification office, send it to the attention of the person
identified in paragraph (l)(1) of this AD. Information may be
emailed to: <a href="/cdn-cgi/l/email-protection#6a53472b242747390f0b1e1e060f472b2925472b27252947380f1b1f0f191e192a0c0b0b440d051c">[email&#160;protected]</a>.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the responsible Flight Standards 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 Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, Seattle
ACO Branch, FAA, 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.

(l) Related Information

(1) For more information about this AD, contact Kevin Nguyen,
Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch,
2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-
3555; email: <a href="/cdn-cgi/l/email-protection#4c27293a252262222b393529220c2a2d2d622b233a">[email&#160;protected]</a>.
(2) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (m)(3) and (4) 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 Alert Requirements Bulletin 777-28A0090 RB, dated
March 30, 2021.
(ii) [Reserved]
(3) For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; internet <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
(4) You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability
of this material at the FAA, call 206-231-3195.
(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, <a href="/cdn-cgi/l/email-protection#b7d1c599ded9c4c7d2d4c3ded8d9f7d9d6c5d699d0d8c1">[email&#160;protected]</a>, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">www.archives.gov/federal-register/cfr/ibr-locations.html</a>.

Issued on November 1, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-26079 Filed 11-29-22; 8:45 am]
BILLING CODE 4910-13-P

</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>

View on FederalRegister.gov →Plain-text source

Indexed from Federal Register on November 30, 2022.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.