Airworthiness Directives; The Boeing Company Airplanes, 66310-66314 [2023-19797]
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Federal Register / Vol. 88, No. 186 / Wednesday, September 27, 2023 / Proposed Rules
Appendixes 1 through 3, dated May 2023, are
required for compliance for the replacement.
(5) Where paragraph (4) of EASA AD 2023–
0093R1 requires operators to ‘‘implement the
instructions of the MMEL [master minimum
equipment list] update,’’ this AD requires
replacing those words with ‘‘implement the
operator’s existing FAA-approved minimum
equipment list (MEL) with the provisions
specified in ‘The MMEL update’ as identified
in EASA AD 2023–0093R1.’’
(6) Where paragraph (4) of EASA AD 2023–
0093R1 specifies to ‘‘inform all flight crews,
and, thereafter, operate the airplane
accordingly,’’ this AD does not require those
actions as those actions are already required
by existing FAA operating regulations.
(7) This AD does not adopt the ‘‘Remarks’’
section of EASA AD 2023–0093R1.
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(i) No Reporting Requirement
Although certain service information
specified in EASA AD 2023–0093R1 specifies
to report certain information and send
affected parts to the manufacturer, this AD
does not require those actions.
(j) Additional AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Validation Branch 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
responsible Flight Standards Office, as
appropriate. If sending information directly
to the International Validation Branch, send
it to the attention of the person identified in
paragraph (k) of this AD. Information may be
emailed to: 9-AVS-AIR-730-AMOC@faa.gov.
(i) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the responsible Flight Standards Office.
(ii) AMOCs approved previously for AD
2022–07–15 are approved as AMOCs for the
corresponding provisions of EASA AD 2023–
0093R1 that are required by paragraph (g) of
this AD.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain instructions
from a manufacturer, the instructions must
be accomplished using a method approved
by the Manager, International Validation
Branch, FAA; or EASA; or Airbus SAS’s
EASA Design Organization Approval (DOA).
If approved by the DOA, the approval must
include the DOA-authorized signature.
(3) Required for Compliance (RC): Except
as required by paragraph (j)(2) of this AD, if
any service information contains procedures
or tests that are identified as RC, those
procedures and tests must be done to comply
with this AD; any procedures or tests that are
not identified as RC are recommended. Those
procedures and tests that are not identified
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 procedures and tests identified as RC can
be done and the airplane can be put back in
an airworthy condition. Any substitutions or
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changes to procedures or tests identified as
RC require approval of an AMOC.
Federal Aviation Administration
(k) Additional Information
For more information about this AD,
contact Timothy Dowling, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite
410, Westbury, NY 11590; phone 206–231–
3667; email Timothy.P.Dowling@faa.gov.
(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 this AD specifies otherwise.
(3) The following service information was
approved for IBR on [DATE 35 DAYS AFTER
PUBLICATION OF THE FINAL RULE].
(i) European Union Aviation Safety Agency
(EASA) AD 2023–0093R1, dated May 15,
2023.
(ii) Airbus Alert Operators Transmission
A32N025–22, Rev 01, dated May 10, 2023,
including Appendixes 1 through 3, dated
May 2023.
(4) The following service information was
approved for IBR on May 2, 2022 (87 FR
22438, April 15, 2022).
(i) Airbus Alert Operators Transmission
A32N025–22, Rev 00, dated February 24,
2022, including Appendixes 1 through 4,
dated February 21, 2022.
(ii) [Reserved]
(5) For EASA AD 2023–0093R1, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 8999
000; email ADs@easa.europa.eu; website
easa.europa.eu. You may find this EASA AD
on the EASA website at ad.easa.europa.eu.
(6) For Airbus service information
identified in this AD, contact Airbus SAS,
Airworthiness Office—EIAS, Rond-Point
Emile Dewoitine No: 2, 31700 Blagnac Cedex,
France; telephone +33 5 61 93 36 96; fax +33
5 61 93 44 51; email account.airworth-eas@
airbus.com; website airbus.com.
(7) 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.
(8) 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,
email fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on September 15, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2023–20399 Filed 9–26–23; 8:45 am]
BILLING CODE 4910–13–P
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DEPARTMENT OF TRANSPORTATION
14 CFR Part 39
[Docket No. FAA–2023–1879; Project
Identifier AD–2023–00286–T]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
The FAA proposes to
supersede Airworthiness Directive (AD)
2019–16–05, which applies to all The
Boeing Company Model 777 airplanes.
AD 2019–16–05 requires an
identification of the part number, and if
applicable the serial number, of the
Captain’s and First Officer’s seats, and
applicable on-condition actions for
affected seats. Since the FAA issued AD
2019–16–05, the FAA has discovered
that certain seat part numbers had been
inadvertently omitted from the
inspection requirements of AD 2019–
16–05. This proposed AD would retain
the requirements of AD 2019–16–05 and
would add inspection of the previously
omitted part numbers. The FAA is
proposing this AD to address the unsafe
condition on these products.
DATES: The FAA must receive comments
on this proposed AD by November 13,
2023.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
regulations.gov. Follow the instructions
for submitting comments.
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2023–1879; 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 NPRM, any comments
received, and other information. The
street address for Docket Operations is
listed above.
Material Incorporated by Reference:
SUMMARY:
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• For service information identified
in this NPRM, 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; website
myboeingfleet.com.
• 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
regulations.gov under Docket No. FAA–
2023–1879.
FOR FURTHER INFORMATION CONTACT:
Courtney Tuck, Aviation Safety
Engineer, FAA, 2200 South 216th St.,
Des Moines, WA 98198; phone: 206–
231–3986; email: courtney.k.tuck@
faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under ADDRESSES. Include ‘‘Docket No.
FAA–2023–1879; Project Identifier AD–
2023–00286–T’’ at the beginning of your
comments. The most helpful comments
reference a specific portion of the
proposal, explain the reason for any
recommended change, and include
supporting data. The FAA will consider
all comments received by the closing
date and may amend the proposal
because of those comments.
Except for Confidential Business
Information (CBI) as described in the
following paragraph, and other
information as described in 14 CFR
11.35, the FAA will post all comments
received, without change, to
regulations.gov, including any personal
information you provide. The agency
will also post a report summarizing each
substantive verbal contact received
about this proposed AD.
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Confidential Business Information
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to this NPRM
contain commercial or financial
information that is customarily treated
as private, that you actually treat as
private, and that is relevant or
responsive to this NPRM, it is important
that you clearly designate the submitted
comments as CBI. Please mark each
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page of your submission containing CBI
as ‘‘PROPIN.’’ The FAA will treat such
marked submissions as confidential
under the FOIA, and they will not be
placed in the public docket of this
NPRM. Submissions containing CBI
should be sent to Courtney Tuck,
Aviation Safety Engineer, FAA, 2200
South 216th St., Des Moines, WA 98198;
phone: 206–231–3986; email:
courtney.k.tuck@faa.gov. Any
commentary that the FAA receives that
is not specifically designated as CBI will
be placed in the public docket for this
rulemaking.
Background
The FAA issued AD 2019–16–05,
Amendment 39–19708 (84 FR 45895,
September 23, 2019) (AD 2019–16–05),
for all The Boeing Company Model 777–
200, –200LR, –300, –300ER, and 777F
series airplanes. AD 2019–16–05 was
prompted by reports of uncommanded
fore/aft movements of the Captain’s and
First Officer’s seats. AD 2019–16–05
requires an identification of the part
number, and if applicable the serial
number, of the Captain’s and First
Officer’s seats, and applicable oncondition actions for affected seats. The
FAA issued AD 2019–16–05 to address
uncommanded fore/aft movement of the
Captain’s and First Officer’s seats. An
uncommanded fore/aft seat movement
during a critical part of a flight, such as
takeoff or landing, could cause a flight
control obstruction or unintended flight
control input, which could result in the
loss of the ability to control the airplane.
Actions Since AD 2019–16–05 Was
Issued
Since the FAA issued AD 2019–16–
05, certain seat part numbers were
discovered to have been inadvertently
omitted from the service information,
and were therefore not included in the
requirements of AD 2019–16–05.
FAA’s Determination
The FAA is issuing this NPRM after
determining that the unsafe condition
described previously is likely to exist or
develop on other products of the same
type design.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Boeing Special
Attention Service Bulletin 777–25–
0607, Revision 2, dated January 27,
2023. The service information describes
procedures for identification of the part
number, and if applicable, the serial
number, of the Captain’s and First
Officer’s seats, and for applicable oncondition actions for affected seats. The
on-condition actions include an
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inspection of each seat’s fore/aft and
vertical manual control levers for
looseness, installation of serviceable
seats, and a seat functional test after any
cable adjustment.
The FAA also reviewed Boeing
Special Attention Service Bulletin 777–
25–0619, Revision 2, dated January 27,
2023. The service information describes
procedures for a detailed inspection and
repetitive checks of the horizontal
movement system for the Captain’s and
First Officer’s seats for findings (e.g.,
evidence of cracks, scores, corrosion,
dents, deformation or visible wear; and
incorrectly assembled microswitch
assemblies, actuators, and limit
switches), and applicable on-condition
actions. The on-condition actions
include clearing the seat tracks of
foreign object debris (FOD), overhauling
the horizontal movement system, and
replacing the horizontal actuator. The
service information also describes
procedures for an optional terminating
action for the repetitive checks by
installing a serviceable Captain’s or First
Officer’s seat.
This proposed AD would also require
Boeing Special Attention Service
Bulletin 777–25–0619, Revision 1, dated
August 8, 2018, which the Director of
the Federal Register approved for
incorporation by reference as of October
8, 2019 (84 FR 45895, September 3,
2019).
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.
Proposed AD Requirements in This
NPRM
Although this proposed AD does not
explicitly restate the requirements of AD
2019–16–05, this proposed AD would
retain all of the requirements of AD
2019–16–05. Those requirements are
referenced in the service information
identified previously, which, in turn, is
referenced in paragraphs (g) and (h) of
this proposed AD. This proposed AD
would also require accomplishment of
the actions specified in Boeing Special
Attention Service Bulletin 777–25–
0607, Revision 2, dated January 27,
2023, and the actions identified as ‘‘RC’’
(required for compliance) in the
Accomplishment Instructions of Boeing
Special Attention Service Bulletin 777–
25–0619, Revision 2, dated January 27,
2023, described previously, except as
discussed under ‘‘Differences Between
this Proposed AD and the Service
Information.’’
For information on the procedures
and compliance times, see this service
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information at regulations.gov under
Docket No. FAA–2023–1879.
Differences Between This Proposed AD
and the Service Information
The effectivity of Boeing Special
Attention Service Bulletins 777–25–
0607 and 777–25–0619, both Revision 2,
dated January 27, 2023, is limited to
Model 777–200, –200LR, –300, –300ER,
and 777F airplanes with specific line
numbers. However, the applicability of
this proposed AD includes all Model
777–200, –200LR, –300, –300ER, and
777F series airplanes. Because the
affected Captain’s and First Officer’s
seats are rotable parts, the FAA has
determined that these seats could later
be installed on airplanes that were
initially delivered with acceptable seats,
thereby subjecting those airplanes to the
identified unsafe condition.
Where Boeing Special Attention
Service Bulletin 777–25–0607, Revision
2, dated January 27, 2023, specifies
compliance within 72 months after the
original issue date of the service
bulletin, this proposed AD would
require compliance with those actions
within 36 months after the effective date
of AD 2019–16–05. The 36-month
compliance time corresponds to the
compliance time in Boeing Special
Attention Service Bulletin 777–25–
0619, Revision 2, dated January 27,
2023. The FAA determined during the
development of AD 2019–16–05 that a
36-month compliance time was
appropriate for doing those actions.
Costs of Compliance
The FAA estimates that this AD, if
adopted as proposed, would affect 327
airplanes of U.S. registry. The FAA
estimates the following costs to comply
with this proposed AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS PER SEAT
Action
Labor cost
Identification, seat (retained
actions from AD 2019–16–
05).
Detailed inspection, horizontal
movement system (retained
actions from AD 2019–16–
05).
Checks, horizontal movement
system (retained actions
from AD 2019–16–05).
1 work-hour × $85 per hour =
$85.
$0
$85 .........................................
$27,795.
1 work-hour × $85 per hour =
$85.
0
$85 .........................................
$27,795.
2 work-hour × $85 per hour =
$170 per check cycle.
0
$170 per check cycle .............
$55,590 per check cycle.
The FAA estimates the following
costs to do any necessary on-condition
Parts cost
Cost per product
actions that would be required. The
FAA has no way of determining the
Cost on U.S. operators
number of aircraft that might need these
on-condition actions:
ESTIMATED COSTS OF ON-CONDITION ACTIONS PER SEAT *
Action
Labor cost
Parts cost
Adjustment, control lever cable .................
Overhaul, horizontal movement system ....
Inspection of each seat’s fore/aft and
vertical manual control levers.
Installation of serviceable seats ................
Clearing FOD .............................................
Replacement of the horizontal actuator ....
1 work-hour × $85 per hour = $85 ..........
11 work-hours × $85 per hour = $935 ....
1 work-hour × $85 per hour = $85 ..........
$0 .......................................
Up to $5,824 ......................
$0 .......................................
$85.
Up to $6,759.
$85.
1 work-hour × $85
1 work-hour × $85
1 work-hour × $85
actuator.
1 work-hour × $85
per hour = $85 ..........
per hour = $85 ..........
per hour = $85, per
$0 .......................................
$0 .......................................
$7,937 per actuator ...........
$85.
$85.
$8,022 per actuator.
per hour = $85 ..........
$0 .......................................
$85.
Functional test, adjusted control lever
cable.
Cost per product
* The estimated cost for tooling to align an affected seat for adjustment of the control lever cable is up to $46,064.
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The FAA has included all known
costs in its cost estimate. According to
the manufacturer, however, some/all of
the costs of this proposed 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.
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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.
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Regulatory Findings
The FAA has determined that this
proposed AD would not have federalism
implications under Executive Order
13132. This proposed AD would not
have a substantial direct effect on the
States, on the relationship between the
national Government and the States, or
on the distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that the proposed regulation:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Would not affect intrastate
aviation in Alaska, and
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(3) Would not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
[Amended]
2. The FAA amends § 39.13 by:
■ a. Removing Airworthiness Directive
(AD) 2019–16–05, Amendment 39–
19708 (84 FR 45895, September 3,
2019), and
■ b. Adding the following new AD:
■
The Boeing Company: Docket No. FAA–
2023–1879; Project Identifier AD–2023–
00286–T.
(a) Comments Due Date
The FAA must receive comments on this
airworthiness directive (AD) by November
13, 2023.
(b) Affected ADs
This AD replaces AD 2019–16–05,
Amendment 39–19708 (84 FR 45895,
September 3, 2019) (AD 2019–16–05).
(c) Applicability
This AD applies to all The Boeing
Company Model 777–200, –200LR, –300,
–300ER, and 777F series airplanes,
certificated in any category.
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(e) Unsafe Condition
This AD was prompted by reports of
uncommanded fore/aft movement of the
Captain’s and First Officer’s seats. The FAA
is issuing this AD to address uncommanded
fore/aft movement of the Captain’s and First
Officer’s seats. An uncommanded fore/aft
seat movement during a critical part of a
flight, such as takeoff or landing, could cause
a flight control obstruction or unintended
flight control input, which could result in the
loss of the ability to control the airplane.
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Except as specified in paragraph (i) of this
AD: At the applicable times specified in
paragraph 1.E., ‘‘Compliance,’’ of Boeing
Special Attention Service Bulletin 777–25–
0619, Revision 2, dated January 27, 2023, do
all applicable actions identified as ‘‘RC’’
(required for compliance) in, and in
accordance with, the Accomplishment
Instructions of Boeing Special Attention
Service Bulletin 777–25–0619, Revision 1,
dated August 8, 2018, or Revision 2, dated
January 27, 2023. As of the effective date of
this AD, only Boeing Special Attention
Service Bulletin 777–25–0619, Revision 2,
dated January 27, 2023, may be used. Actions
identified as terminating action in Boeing
Special Attention Service Bulletin 777–25–
0619, Revision 1, dated August 8, 2018, or
Revision 2, dated January 27, 2023, terminate
the applicable required actions of this AD,
provided the terminating action is done in
accordance with the Accomplishment
Instructions of Boeing Special Attention
Service Bulletin 777–25–0619, Revision 1,
dated August 8, 2018, or Revision 2, dated
January 27, 2023.
(i) Exceptions to Service Information
Specifications
(d) Subject
Air Transport Association (ATA) of
America Code 25, Equipment/Furnishings.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
Except as specified in paragraph (i) of this
AD: At the applicable time specified in
Boeing Special Attention Service Bulletin
777–25–0607, Revision 2, dated January 27,
2023, do an inspection to determine the part
number, and serial number as applicable, of
the Captain’s and First Officer’s seats, and do
all applicable on-condition actions, in
accordance with the Accomplishment
Instructions of Boeing Special Attention
Service Bulletin 777–25–0607, Revision 2,
dated January 27, 2023. A review of airplane
maintenance records is acceptable in lieu of
this inspection if the part number and serial
number of the Captain’s and First Officer’s
seats can be conclusively determined from
that review.
(h) Detailed Inspection and Repetitive
Checks of Horizontal Movement System and
On-Condition Actions
■
§ 39.13
(g) Seat Part Number Identification and OnCondition Actions
(1) Where Boeing Special Attention Service
Bulletin 777–25–0619, Revision 2, dated
January 27, 2023, uses the phrase ‘‘the
Original issue date of this service bulletin,’’
this AD requires replacing those words with
‘‘October 8, 2019 (the effective date of AD
2019–16–05).’’
(2) Where Boeing Special Attention Service
Bulletin 777–25–0607, Revision 2, dated
January 27, 2023, specifies compliance for
certain actions ‘‘within 72 months after the
Original Issue date of this service bulletin,’’
this AD requires replacing those words with
‘‘within 36 months after October 8, 2019 (the
effective date of AD 2019–16–05).’’
(3) Where Boeing Special Attention Service
Bulletin 777–25–0607, Revision 2, dated
January 27, 2023, specifies compliance for
certain actions ‘‘within 36 months after the
Revision 2 date of this service bulletin,’’ this
AD requires compliance within 36 months
after the effective date of this AD.
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(j) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, AIR–520, Continued
Operational Safety Branch, 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 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 (k) of this AD.
Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov.
(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, AIR–520, Continued Operational
Safety 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.
(4) AMOCs approved for AD 2019–16–05
are approved as AMOCs for the
corresponding provisions of this AD.
(5) For service information that contains
steps that are labeled as Required for
Compliance (RC), the provisions of
paragraphs (j)(5)(i) and (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. If a step or substep is
labeled ‘‘RC Exempt,’’ then the RC
requirement is removed from that step or
substep. 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.
(k) Related Information
(1) For more information about this AD,
contact Courtney Tuck, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des
Moines, WA 98198; phone: 206–231–3986;
email: courtney.k.tuck@faa.gov.
(2) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (l)(5) and (6) of this AD.
(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.
E:\FR\FM\27SEP1.SGM
27SEP1
66314
Federal Register / Vol. 88, No. 186 / Wednesday, September 27, 2023 / Proposed Rules
(3) The following service information was
approved for IBR on [DATE 35 DAYS AFTER
PUBLICATION OF THE FINAL RULE].
(i) Boeing Special Attention Service
Bulletin 777–25–0607, Revision 2, dated
January 27, 2023.
(ii) Boeing Special Attention Service
Bulletin 777–25–0619, Revision 2, dated
January 27, 2023.
(4) The following service information was
approved for IBR on October 8, 2019 (84 FR
45895, September 3, 2019).
(i) Boeing Special Attention Service
Bulletin 777–25–0619, Revision 1, dated
August 8, 2018.
(ii) [Reserved]
(5) 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; website
myboeingfleet.com.
(6) 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.
(7) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA,
fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on September 8, 2023.
Caitlin Locke,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2023–19797 Filed 9–26–23; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2023–1888; Project
Identifier MCAI–2023–00298–E]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
Deutschland Ltd & Co KG Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Proposed rule; correction.
AGENCY:
The FAA is correcting a
Notice of Proposed Rulemaking (NPRM)
that published in the Federal Register.
The NPRM proposed to issue an
airworthiness directive (AD) that would
apply to all Rolls-Royce Deutschland
Ltd & Co KG (RRD) Model RB211–Trent
800 engines. As published, the docket
number referenced throughout the
NPRM is incorrect. This document
corrects that error. In all other respects,
ddrumheller on DSK120RN23PROD with PROPOSALS1
SUMMARY:
VerDate Sep<11>2014
17:04 Sep 26, 2023
Jkt 259001
the original document remains the
same; however, for clarity, the FAA is
republishing the entire proposed rule in
the Federal Register.
DATES: The last date for submitting
comments to the NPRM (88 FR 63539,
September 15, 2023) remains October
30, 2023.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
regulations.gov. Follow the instructions
for submitting comments.
• Fax: (202) 493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2023–1888; 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 NPRM, the mandatory
continuing airworthiness information
(MCAI), any comments received, and
other information. The street address for
Docket Operations is listed above.
Material Incorporated by Reference:
• For service information identified
in this NPRM, contact the European
Union Aviation Safety Agency (EASA),
Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; phone: +49 221 8999
000; email: ADs@easa.europa.eu;
website: easa.europa.eu. You may find
this material on the EASA website at
ad.easa.europa.eu. It is also available at
regulations.gov under Docket No. FAA–
2023–1888.
• You may view this service
information at the FAA, Airworthiness
Products Section, Operational Safety
Branch, 1200 District Avenue,
Burlington, MA 01803. For information
on the availability of this material at the
FAA, call (817) 222–5110.
FOR FURTHER INFORMATION CONTACT:
Sungmo Cho, Aviation Safety Engineer,
FAA, 2200 South 216th Street, Des
Moines, WA 98198; phone: (781) 238–
7241; email: sungmo.d.cho@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under ADDRESSES. Include ‘‘Docket No.
PO 00000
Frm 00015
Fmt 4702
Sfmt 4702
FAA–2023–1888; Project Identifier
MCAI–2023–00298–E’’ at the beginning
of your comments. The most helpful
comments reference a specific portion of
the proposal, explain the reason for any
recommended change, and include
supporting data. The FAA will consider
all comments received by the closing
date and may amend this proposal
because of those comments.
Except for Confidential Business
Information (CBI) as described in the
following paragraph, and other
information as described in 14 CFR
11.35, the FAA will post all comments
received, without change, to
regulations.gov, including any personal
information you provide. The agency
will also post a report summarizing each
substantive verbal contact received
about this NPRM.
Confidential Business Information
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to this NPRM
contain commercial or financial
information that is customarily treated
as private, that you actually treat as
private, and that is relevant or
responsive to this NPRM, it is important
that you clearly designate the submitted
comments as CBI. Please mark each
page of your submission containing CBI
as ‘‘PROPIN.’’ The FAA will treat such
marked submissions as confidential
under the FOIA, and they will not be
placed in the public docket of this
NPRM. Submissions containing CBI
should be sent to Sungmo Cho, Aviation
Safety Engineer, FAA, 2200 South 216th
Street, Des Moines, WA 98198. Any
commentary that the FAA receives
which is not specifically designated as
CBI will be placed in the public docket
for this rulemaking.
Background
The FAA issued an NPRM (88 FR
63539, September 15, 2023) that would
apply to all RRD Model RB211–Trent
800 engines. The NPRM proposed to
require initial and repetitive on-wing or
in-shop borescope inspections (BSIs) of
certain intermediate-pressure
compressor (IPC) rotor shaft balance
lands for cracks, dents, and nicks, and
replacement of the IPC rotor shaft if
necessary, and proposed to prohibit the
installation of a certain IPC rotor shaft
on any engine, as specified in EASA AD
2023–0040, dated February 16, 2023
(EASA AD 2023–0040) (also referred to
after this as the MCAI), which is
proposed for incorporation by reference.
E:\FR\FM\27SEP1.SGM
27SEP1
]]>Agencies
[Federal Register Volume 88, Number 186 (Wednesday, September 27, 2023)]
[Proposed Rules]
[Pages 66310-66314]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-19797]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1879; Project Identifier AD-2023-00286-T]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD)
2019-16-05, which applies to all The Boeing Company Model 777
airplanes. AD 2019-16-05 requires an identification of the part number,
and if applicable the serial number, of the Captain's and First
Officer's seats, and applicable on-condition actions for affected
seats. Since the FAA issued AD 2019-16-05, the FAA has discovered that
certain seat part numbers had been inadvertently omitted from the
inspection requirements of AD 2019-16-05. This proposed AD would retain
the requirements of AD 2019-16-05 and would add inspection of the
previously omitted part numbers. The FAA is proposing this AD to
address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by November
13, 2023.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to regulations.gov. Follow
the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2023-1879; 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 NPRM, any comments received, and other
information. The street address for Docket Operations is listed above.
Material Incorporated by Reference:
[[Page 66311]]
For service information identified in this NPRM, 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; website myboeingfleet.com.
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
regulations.gov under Docket No. FAA-2023-1879.
FOR FURTHER INFORMATION CONTACT: Courtney Tuck, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-
231-3986; email: [email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2023-1879; Project Identifier
AD-2023-00286-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
the proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
regulations.gov, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this proposed AD.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to
Courtney Tuck, Aviation Safety Engineer, FAA, 2200 South 216th St., Des
Moines, WA 98198; phone: 206-231-3986; email: [email protected].
Any commentary that the FAA receives that is not specifically
designated as CBI will be placed in the public docket for this
rulemaking.
Background
The FAA issued AD 2019-16-05, Amendment 39-19708 (84 FR 45895,
September 23, 2019) (AD 2019-16-05), for all The Boeing Company Model
777-200, -200LR, -300, -300ER, and 777F series airplanes. AD 2019-16-05
was prompted by reports of uncommanded fore/aft movements of the
Captain's and First Officer's seats. AD 2019-16-05 requires an
identification of the part number, and if applicable the serial number,
of the Captain's and First Officer's seats, and applicable on-condition
actions for affected seats. The FAA issued AD 2019-16-05 to address
uncommanded fore/aft movement of the Captain's and First Officer's
seats. An uncommanded fore/aft seat movement during a critical part of
a flight, such as takeoff or landing, could cause a flight control
obstruction or unintended flight control input, which could result in
the loss of the ability to control the airplane.
Actions Since AD 2019-16-05 Was Issued
Since the FAA issued AD 2019-16-05, certain seat part numbers were
discovered to have been inadvertently omitted from the service
information, and were therefore not included in the requirements of AD
2019-16-05.
FAA's Determination
The FAA is issuing this NPRM after determining that the unsafe
condition described previously is likely to exist or develop on other
products of the same type design.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Boeing Special Attention Service Bulletin 777-25-
0607, Revision 2, dated January 27, 2023. The service information
describes procedures for identification of the part number, and if
applicable, the serial number, of the Captain's and First Officer's
seats, and for applicable on-condition actions for affected seats. The
on-condition actions include an inspection of each seat's fore/aft and
vertical manual control levers for looseness, installation of
serviceable seats, and a seat functional test after any cable
adjustment.
The FAA also reviewed Boeing Special Attention Service Bulletin
777-25-0619, Revision 2, dated January 27, 2023. The service
information describes procedures for a detailed inspection and
repetitive checks of the horizontal movement system for the Captain's
and First Officer's seats for findings (e.g., evidence of cracks,
scores, corrosion, dents, deformation or visible wear; and incorrectly
assembled microswitch assemblies, actuators, and limit switches), and
applicable on-condition actions. The on-condition actions include
clearing the seat tracks of foreign object debris (FOD), overhauling
the horizontal movement system, and replacing the horizontal actuator.
The service information also describes procedures for an optional
terminating action for the repetitive checks by installing a
serviceable Captain's or First Officer's seat.
This proposed AD would also require Boeing Special Attention
Service Bulletin 777-25-0619, Revision 1, dated August 8, 2018, which
the Director of the Federal Register approved for incorporation by
reference as of October 8, 2019 (84 FR 45895, September 3, 2019).
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.
Proposed AD Requirements in This NPRM
Although this proposed AD does not explicitly restate the
requirements of AD 2019-16-05, this proposed AD would retain all of the
requirements of AD 2019-16-05. Those requirements are referenced in the
service information identified previously, which, in turn, is
referenced in paragraphs (g) and (h) of this proposed AD. This proposed
AD would also require accomplishment of the actions specified in Boeing
Special Attention Service Bulletin 777-25-0607, Revision 2, dated
January 27, 2023, and the actions identified as ``RC'' (required for
compliance) in the Accomplishment Instructions of Boeing Special
Attention Service Bulletin 777-25-0619, Revision 2, dated January 27,
2023, described previously, except as discussed under ``Differences
Between this Proposed AD and the Service Information.''
For information on the procedures and compliance times, see this
service
[[Page 66312]]
information at regulations.gov under Docket No. FAA-2023-1879.
Differences Between This Proposed AD and the Service Information
The effectivity of Boeing Special Attention Service Bulletins 777-
25-0607 and 777-25-0619, both Revision 2, dated January 27, 2023, is
limited to Model 777-200, -200LR, -300, -300ER, and 777F airplanes with
specific line numbers. However, the applicability of this proposed AD
includes all Model 777-200, -200LR, -300, -300ER, and 777F series
airplanes. Because the affected Captain's and First Officer's seats are
rotable parts, the FAA has determined that these seats could later be
installed on airplanes that were initially delivered with acceptable
seats, thereby subjecting those airplanes to the identified unsafe
condition.
Where Boeing Special Attention Service Bulletin 777-25-0607,
Revision 2, dated January 27, 2023, specifies compliance within 72
months after the original issue date of the service bulletin, this
proposed AD would require compliance with those actions within 36
months after the effective date of AD 2019-16-05. The 36-month
compliance time corresponds to the compliance time in Boeing Special
Attention Service Bulletin 777-25-0619, Revision 2, dated January 27,
2023. The FAA determined during the development of AD 2019-16-05 that a
36-month compliance time was appropriate for doing those actions.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 327 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
Estimated Costs for Required Actions per Seat
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Identification, seat (retained 1 work-hour x $85 $0 $85................ $27,795.
actions from AD 2019-16-05). per hour = $85.
Detailed inspection, horizontal 1 work-hour x $85 0 $85................ $27,795.
movement system (retained per hour = $85.
actions from AD 2019-16-05).
Checks, horizontal movement 2 work-hour x $85 0 $170 per check $55,590 per check
system (retained actions from AD per hour = $170 cycle. cycle.
2019-16-05). per check cycle.
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary on-
condition actions that would be required. The FAA has no way of
determining the number of aircraft that might need these on-condition
actions:
Estimated Costs of On-Condition Actions per Seat *
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
Adjustment, control lever cable...... 1 work-hour x $85 per $0..................... $85.
hour = $85.
Overhaul, horizontal movement system. 11 work-hours x $85 per Up to $5,824........... Up to $6,759.
hour = $935.
Inspection of each seat's fore/aft 1 work-hour x $85 per $0..................... $85.
and vertical manual control levers. hour = $85.
Installation of serviceable seats.... 1 work-hour x $85 per $0..................... $85.
hour = $85.
Clearing FOD......................... 1 work-hour x $85 per $0..................... $85.
hour = $85.
Replacement of the horizontal 1 work-hour x $85 per $7,937 per actuator.... $8,022 per actuator.
actuator. hour = $85, per
actuator.
Functional test, adjusted control 1 work-hour x $85 per $0..................... $85.
lever cable. hour = $85.
----------------------------------------------------------------------------------------------------------------
* The estimated cost for tooling to align an affected seat for adjustment of the control lever cable is up to
$46,064.
The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some/all of the costs of this
proposed 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
The FAA has determined that this proposed AD would not have
federalism implications under Executive Order 13132. This proposed AD
would not have a substantial direct effect on the States, on the
relationship between the national Government and the States, or on the
distribution of power and responsibilities among the various levels of
government.
For the reasons discussed above, I certify that the proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
[[Page 66313]]
(3) Would not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by:
0
a. Removing Airworthiness Directive (AD) 2019-16-05, Amendment 39-19708
(84 FR 45895, September 3, 2019), and
0
b. Adding the following new AD:
The Boeing Company: Docket No. FAA-2023-1879; Project Identifier AD-
2023-00286-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by November 13, 2023.
(b) Affected ADs
This AD replaces AD 2019-16-05, Amendment 39-19708 (84 FR 45895,
September 3, 2019) (AD 2019-16-05).
(c) Applicability
This AD applies to all The Boeing Company Model 777-200, -200LR,
-300, -300ER, and 777F series airplanes, certificated in any
category.
(d) Subject
Air Transport Association (ATA) of America Code 25, Equipment/
Furnishings.
(e) Unsafe Condition
This AD was prompted by reports of uncommanded fore/aft movement
of the Captain's and First Officer's seats. The FAA is issuing this
AD to address uncommanded fore/aft movement of the Captain's and
First Officer's seats. An uncommanded fore/aft seat movement during
a critical part of a flight, such as takeoff or landing, could cause
a flight control obstruction or unintended flight control input,
which could result in the loss of the ability to control the
airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Seat Part Number Identification and On-Condition Actions
Except as specified in paragraph (i) of this AD: At the
applicable time specified in Boeing Special Attention Service
Bulletin 777-25-0607, Revision 2, dated January 27, 2023, do an
inspection to determine the part number, and serial number as
applicable, of the Captain's and First Officer's seats, and do all
applicable on-condition actions, in accordance with the
Accomplishment Instructions of Boeing Special Attention Service
Bulletin 777-25-0607, Revision 2, dated January 27, 2023. A review
of airplane maintenance records is acceptable in lieu of this
inspection if the part number and serial number of the Captain's and
First Officer's seats can be conclusively determined from that
review.
(h) Detailed Inspection and Repetitive Checks of Horizontal Movement
System and On-Condition Actions
Except as specified in paragraph (i) of this AD: At the
applicable times specified in paragraph 1.E., ``Compliance,'' of
Boeing Special Attention Service Bulletin 777-25-0619, Revision 2,
dated January 27, 2023, do all applicable actions identified as
``RC'' (required for compliance) in, and in accordance with, the
Accomplishment Instructions of Boeing Special Attention Service
Bulletin 777-25-0619, Revision 1, dated August 8, 2018, or Revision
2, dated January 27, 2023. As of the effective date of this AD, only
Boeing Special Attention Service Bulletin 777-25-0619, Revision 2,
dated January 27, 2023, may be used. Actions identified as
terminating action in Boeing Special Attention Service Bulletin 777-
25-0619, Revision 1, dated August 8, 2018, or Revision 2, dated
January 27, 2023, terminate the applicable required actions of this
AD, provided the terminating action is done in accordance with the
Accomplishment Instructions of Boeing Special Attention Service
Bulletin 777-25-0619, Revision 1, dated August 8, 2018, or Revision
2, dated January 27, 2023.
(i) Exceptions to Service Information Specifications
(1) Where Boeing Special Attention Service Bulletin 777-25-0619,
Revision 2, dated January 27, 2023, uses the phrase ``the Original
issue date of this service bulletin,'' this AD requires replacing
those words with ``October 8, 2019 (the effective date of AD 2019-
16-05).''
(2) Where Boeing Special Attention Service Bulletin 777-25-0607,
Revision 2, dated January 27, 2023, specifies compliance for certain
actions ``within 72 months after the Original Issue date of this
service bulletin,'' this AD requires replacing those words with
``within 36 months after October 8, 2019 (the effective date of AD
2019-16-05).''
(3) Where Boeing Special Attention Service Bulletin 777-25-0607,
Revision 2, dated January 27, 2023, specifies compliance for certain
actions ``within 36 months after the Revision 2 date of this service
bulletin,'' this AD requires compliance within 36 months after the
effective date of this AD.
(j) Alternative Methods of Compliance (AMOCs)
(1) The Manager, AIR-520, Continued Operational Safety Branch,
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
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 (k)
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 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, AIR-
520, Continued Operational Safety 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.
(4) AMOCs approved for AD 2019-16-05 are approved as AMOCs for
the corresponding provisions of this AD.
(5) For service information that contains steps that are labeled
as Required for Compliance (RC), the provisions of paragraphs
(j)(5)(i) and (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. If a step or substep is labeled ``RC Exempt,'' then the
RC requirement is removed from that step or substep. 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.
(k) Related Information
(1) For more information about this AD, contact Courtney Tuck,
Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA
98198; phone: 206-231-3986; email: [email protected].
(2) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (l)(5) and (6) of this AD.
(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.
[[Page 66314]]
(3) The following service information was approved for IBR on
[DATE 35 DAYS AFTER PUBLICATION OF THE FINAL RULE].
(i) Boeing Special Attention Service Bulletin 777-25-0607,
Revision 2, dated January 27, 2023.
(ii) Boeing Special Attention Service Bulletin 777-25-0619,
Revision 2, dated January 27, 2023.
(4) The following service information was approved for IBR on
October 8, 2019 (84 FR 45895, September 3, 2019).
(i) Boeing Special Attention Service Bulletin 777-25-0619,
Revision 1, dated August 8, 2018.
(ii) [Reserved]
(5) 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; website myboeingfleet.com.
(6) 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.
(7) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, [email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on September 8, 2023.
Caitlin Locke,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2023-19797 Filed 9-26-23; 8:45 am]
BILLING CODE 4910-13-P
