Rule2025-21474
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 28, 2025
Effective
January 2, 2026
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2018-26- 03, which applied to all The Boeing Company Model 757-200 series airplanes. AD 2018-26-03 required, for the Captain's and First Officer's seats, repetitive horizontal actuator identifications, repetitive checks of the horizontal movement system (HMS), a detailed inspection of the HMS, as applicable, and applicable on-condition actions. AD 2018-26-03 also required a general visual inspection to determine the seat part numbers of the Captain's and First Officer's seats, a cable adjustment check on seats with certain seat part numbers, and applicable on-condition actions. This AD was prompted by reports of uncommanded movement of the Captain's and First Officer's seats. This AD retains the requirements of AD 2018-26-03 and adds an inspection for previously omitted part numbers. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 90 Issue 227 (Friday, November 28, 2025)</title>
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[Federal Register Volume 90, Number 227 (Friday, November 28, 2025)]
[Rules and Regulations]
[Pages 54563-54568]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-21474]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2025-0473; Project Identifier AD-2024-00281-T;
Amendment 39-23167; AD 2025-20-14]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2018-26-
03, which applied to all The Boeing Company Model 757-200 series
airplanes. AD 2018-26-03 required, for the Captain's and First
Officer's seats, repetitive horizontal actuator identifications,
repetitive checks of the horizontal movement system (HMS), a detailed
inspection of the HMS, as applicable, and applicable on-condition
actions. AD 2018-26-03 also required a general visual inspection to
determine the seat part numbers of the Captain's and First Officer's
seats, a cable adjustment check on seats with certain seat part
numbers, and applicable on-condition actions. This AD was prompted by
reports of uncommanded movement of the Captain's and First Officer's
seats. This AD retains the requirements of AD 2018-26-03 and adds an
inspection for previously omitted part numbers. The FAA is issuing this
AD to address the unsafe condition on these products.
DATES: This AD is effective January 2, 2026.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of January 2,
2026.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of
January 31, 2019 (83 FR 66612, December 27, 2018).
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-0473; 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 Boeing material 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 <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
<bullet> You may view this material 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-2025-0473.
FOR FURTHER INFORMATION CONTACT: Julie Linn, Aviation Safety Engineer,
FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3584;
email: <a href="/cdn-cgi/l/email-protection#703a051c19155e3c191e1e301611115e171f06"><span class="__cf_email__" data-cfemail="450f30292c206b092c2b2b052324246b222a33">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2018-26-03, Amendment 39-19533 (83 FR
66612, December 27, 2018) (AD 2018-26-03). AD 2018-26-03 applied to all
The Boeing Company Model 757-200 series airplanes. The NPRM was
published in the Federal Register on March 31, 2025 (90 FR 14213). The
NPRM was prompted by reports of uncommanded movement of the Captain's
and First Officer's seats and the determination that additional seats
are affected by the unsafe condition. In the NPRM, the FAA proposed to
continue to require the actions in AD 2018-26-03 and add an inspection
for previously omitted part numbers. The FAA is issuing this AD to
address uncommanded movement of the Captain's and First Officer's seat,
which could lead to reduced controllability of the airplane.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from the Air Line Pilots Association,
International and ProTech Aero Services Limited who supported the NPRM
without change.
The FAA also received comments from Boeing, Delta Air Lines
(Delta), and an anonymous commenter. The following presents those
comments and the FAA's response.
Request To Clarify Seat Applicability for Acceptable Conditions for
Compliance
Delta requested the FAA revise paragraph (m) of the proposed AD to
clarify that it applies to an Ipeco Captain's or First Officer's seat
currently installed on an airplane. Delta stated that paragraph (m) of
the proposed AD could be interpreted as applying to all seats currently
installed on an airplane, or seats that were previously modified as
required by AD 2018-26-03.
The FAA agrees with the commenter's rationale and has revised
paragraph (m) of this AD to specify the paragraph applies to seats
installed on an airplane.
Request To Revise the Acceptable Conditions for Compliance
Boeing requested the FAA revise paragraph (m) of this AD to state
that, if airplane records show an Ipeco Captain's or First Officer's
seat meets either one of two conditions for Boeing Special Attention
Service Bulletin 757-25-0308 in table 1 to paragraph (m) of the
proposed AD, then the actions in paragraphs (g) and (h), as applicable,
of the proposed AD are not required for that seat; and if the records
show that a seat meets either one of two conditions for Boeing Special
Attention Service Bulletin 757-25-0309 in table 1 to paragraph (m) of
the proposed AD, then the actions in paragraphs (j) and (k), as
applicable, of the proposed AD are not required for that seat. Boeing
stated this change would clarify that accomplishment of either Boeing
Special Attention Service Bulletin 757-25-0308 or 757-25-0309 alone
does not alleviate both adverse conditions of the seats, and that
actions in both service bulletins are necessary. Boeing also stated
that one row for Boeing Special Attention Service Bulletin 757-25-0308
must be completed for the HMS issue to satisfy the requirements of
paragraphs (g) and (j) of the proposed AD, and one row must be
completed for Boeing Special Attention Service Bulletin 757-25-0309 to
satisfy the requirements of
[[Page 54564]]
paragraphs (h) and (k) of the proposed AD.
The FAA agrees with the intent of the commenter's request and has
revised paragraph (m) of this AD to match the language the FAA adopted
in other ADs that address the same unsafe condition on other Boeing
airplane models. Paragraph (m) of this AD states, in part, if airplane
records show a seat installed on an airplane meets the conditions in
any of the three rows for Boeing Special Attention Service Bulletin
757-25-0308 in table 1 to paragraph (m) of this AD, then the actions in
paragraphs (g) and (j), as applicable, of this AD are not required for
that seat; and if the airplane records show a seat installed on an
airplane meets the conditions in any of the three rows for Boeing
Special Attention Service Bulletin 757-25-0309 in table 1 to paragraph
(m) of this AD, then the actions specified in paragraphs (j) and (k),
as applicable, of this AD are not required for that seat.
Request To Correct Service Bulletin Reference
Boeing and Delta requested that the FAA correct three references to
service bulletin number ``777-25-0309'' in table 1 to paragraph (m) of
the proposed AD. The commenters stated the correct reference is Boeing
Special Attention Service Bulletin 757-25-0309.
The FAA agrees and has revised table 1 to paragraph (m) of this AD
accordingly.
Request To Add Service Information as Acceptable Conditions for
Compliance
Delta requested that the FAA add Ipeco Service Bulletin 258-25-16,
Issue 4, dated September 11, 2017; and Issue 5, dated April 29, 2020,
to table 1 to paragraph (m) of the proposed AD. Delta stated that these
service bulletins embody the HMS inspection and overhaul of the
Captain's and First Officer's seats. Delta noted that, under the
proposed table, compliance is acceptable (i.e., the actions specified
in paragraphs (g), (h), (j), and (k) of the proposed AD are not
required) if actions are done in accordance with Boeing Special
Attention Service Bulletin 757-25-0308, Revision 1, dated June 7, 2018,
and additional actions are done in accordance with Ipeco Service
Bulletin 258-25-15, Issue 4, dated February 16, 2018; Issue 5, dated
April 29, 2020; or Issue 6, dated November 1, 2021, for Ipeco part
number (P/N) 3A258-0007-01-1 or 3A258-0008-01-1 with horizontal
actuator Artus P/N AD8650503 at ``Amendment C'' or later. Delta also
noted that Revision 1 of Boeing Special Attention Service Bulletin 757-
25-0308, and Revision 2, dated June 12, 2023, allow accomplishment of
Issue 4 of Ipeco Service Bulletin 258-25-16 for Ipeco P/N 3A258-0007-
01-1 or 3A258-0008-01-1. Delta stated that accomplishing Issue 4, 5, or
6 of Ipeco Service Bulletin 258-25-15 triggers repetitive inspections
of the seats but accomplishing Issue 4 or 5 of Ipeco Service Bulletin
258-25-16 terminates those repetitive inspections.
The FAA agrees with the commenter's request for the reasons
provided above. Accordingly, the FAA has included the additional
service information in table 1 to paragraph (m) of this AD.
Request To Emphasize Whistleblower Protections
An anonymous commenter stated the proposed AD should explicitly
remind operators of the strong whistleblower protections with anti-
retaliatory safeguards for mechanics, flightcrews, and inspectors who
report recurring or unresolved seat movement issues.
The FAA acknowledges the commenter's concern. The Wendell H. Ford
Aviation Investment and Reform Act for the 21st Century (49 U.S.C.
42121) prohibits discrimination against employees of the U.S. air
carrier industry and U.S. manufacturers who report information related
to air carrier safety. Employees of U.S. air carriers and U.S.
aircraft/component manufacturers, their contractors, and their sub-
contractors are covered under the AIR-21 Whistleblower Protection
Program. More information about this program is available at <a href="https://www.faa.gov/about/initiatives/whistleblower">https://www.faa.gov/about/initiatives/whistleblower</a>. Other individuals may a
file a complaint or safety report using the FAA Hotline. More
information about this program is available at <a href="https://www.faa.gov/about/office_org/headquarters_offices/aae/programs_services/faa_hotlines">https://www.faa.gov/about/office_org/headquarters_offices/aae/programs_services/faa_hotlines</a>. No change to the AD is necessary in this regard.
Request To Consider Impacts on Small Businesses and Communities
An anonymous commenter requested that the FAA analyze whether
additional costs or delays from the proposed AD would
disproportionately affect small operators, regional airlines, or routes
serving low-income or rural communities. The commenter stated that
technical support or grants may be needed to avoid reducing affordable
and equitable access to air service.
The FAA acknowledges the commenter's concern. The FAA recognizes
that this AD imposes certain operational costs on operators, and that
operators have an obligation to maintain their airplanes in airworthy
condition. However, the FAA does not provide economic mitigation to
small or large operators. Under certain circumstances, an airplane
manufacturer might provide warranty coverage, but the FAA does not have
the authority to require manufacturers to do so. The FAA has not
changed the AD in this regard.
Request To Require Reporting
An anonymous commenter requested that the FAA require operators to
report anonymized data on all incidents of uncommanded seat movement,
repairs performed, and root causes, with public summaries released
regularly. The commenter stated that this transparency would build
trust and allow independent safety and labor advocates to monitor
implementation.
The FAA agrees. The holder of a type certificate, parts
manufacturer approval (PMA), or technical standard order (TSO)
authorization is required, under 14 CFR 21.3, to report any failure,
malfunction, or defect in any product or article manufactured by it
that has resulted in occurrences, as provided in Sec. 21.3(c). These
reports can be submitted to the service difficulty reporting (SDR)
system at <a href="http://sdrs.faa.gov">sdrs.faa.gov</a>, which is accessible to the public. No change to
the AD is necessary in this regard.
Request To Address Safety and Accessibility for Disabled Passengers
An anonymous commenter requested that the FAA revise the proposed
AD to require that any new or retrofitted seat meet or exceed the
American with Disabilities Act (ADA) accessibility requirements for
disabled passengers and crew members.
The FAA acknowledges the commenter's concern. The requirements of
this AD address uncommanded movement of the Captain's and First
Officer's seats, which could lead to reduced controllability of the
airplane. Therefore, this AD does not affect disabled passengers or
cabin crewmembers. If a modification to a seat is needed to accommodate
a disabled flightcrew member, and the modification affects compliance
with this AD, an operator may request approval of an alternative method
of compliance (AMOC) under the provisions of paragraph (n) of this AD.
The FAA has not revised the AD in this regard.
Request To Address Compliance Time and Workforce Capacity
An anonymous commenter requested the FAA confirm that the proposed
compliance time would not result in overburdening maintenance staff,
forced
[[Page 54565]]
overtime, or flight cancellations. The commenter stated that rushed or
under-resourced implementation of an AD risks maintenance errors and
fatigue.
The FAA acknowledges the commenter's concern. In developing an
appropriate compliance time for this AD, the FAA considered the
recommendations of the manufacturer, the urgency associated with the
subject unsafe condition, the availability of required parts, and the
practical aspect of accomplishing the required modification within a
period of time that corresponds to the normal scheduled maintenance for
most affected operators. In consideration of these items, the FAA has
determined that the compliance time required by this AD will ensure an
acceptable level of safety. However, under the provisions of paragraph
(n) of this AD, the FAA will consider requests for approval of an
extension of the compliance time if sufficient data are submitted to
substantiate that the new compliance time would provide an acceptable
level of safety. The FAA has not changed this AD in this regard.
Request To Include Stakeholder Input
An anonymous commenter requested that the FAA require meaningful
input from frontline mechanics, labor unions, flightcrew
representatives, and disability rights groups before finalizing
compliance plans or altering seat design standards.
The FAA acknowledges the commenter's concern. The FAA provides
industry stakeholders the opportunity to participate in the rulemaking
process by providing notice in the Federal Register. Before issuing the
final rule, the FAA considers all comments received and determines
whether air safety requires incorporating any requested changes or
adopting the AD as proposed. No change to the AD is necessary in this
regard.
Request To Address Environmental Impacts
An anonymous commenter requested that the FAA revise the proposed
AD to clarify the environmental impact of seat replacement or repairs,
including discarded parts and whether materials are reused or recycled.
The commenter asserted that the FAA should prioritize sustainable
disposal and recycling practices.
The FAA disagrees with the request. In accordance with 14 CFR 39.5,
the FAA issues an AD when an unsafe condition exists on an aircraft,
aircraft engine, propellers, or appliances, and the condition is likely
to exist or develop in other products of the same type design.
Mandating how operators dispose of parts removed from an airplane or
their spares inventory does not address the unsafe condition. Further,
according to Sec. 39.11, an AD specifies the actions that must be
taken to resolve the unsafe condition. Any actions required beyond that
may create an unnecessary burden on operators. The FAA has not revised
the AD in this regard.
Request To Address Worker Safety
An anonymous commenter requested that the FAA revise the proposed
AD to require robust reporting, training, and oversight to protect
maintenance workers who inspect and repair the affected seats. The
commenter stated seat maintenance can involve awkward and hazardous
positions, and the FAA should ensure that airlines are required to
provide safe working conditions, ergonomic equipment, and paid time for
proper safety procedures.
The FAA disagrees with revising the AD. As stated previously, the
FAA issues an AD to require the necessary actions to adequately address
an unsafe condition on an affected product. The safety and protection
of maintenance workers is outside the scope of this AD. The FAA has not
revised the AD in this regard.
Request To Consider Labor Rights
An anonymous commenter asked if the FAA has a plan to monitor and
enforce labor standards and fair working conditions in the
manufacturing and supply chain for replacement of seat parts. The
commenter stated that the proposed AD should not create pressure to
outsource work to low-wage and -rights facilities.
The FAA does not plan to monitor or enforce labor standards and
working conditions related to the production and supply of replacement
seat parts. The enforcement of labor standards and fair working
conditions is outside the scope of this AD. As stated previously, the
FAA issues an AD to require the necessary actions to adequately address
an unsafe condition on an affected product. The FAA has not changed the
AD in this regard.
Request To Address Airline Cost Pass-Through
An anonymous commenter asked what measures the FAA will take to
prevent airlines from passing on AD compliance costs directly to
passengers through fare increases or fees, which disproportionately
burden working-class travelers.
The FAA acknowledges the commenter's concern. As stated previously,
the FAA issues an AD to require the necessary actions to adequately
address an unsafe condition on an affected product. The FAA's authority
to regulate air safety does not include prescribing how a private
company conducts its business. The FAA has not changed the AD 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 the foregoing changes, this AD
is adopted as proposed in the NPRM. None of the changes will increase
the economic burden on any operator.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed Boeing Special Attention Service Bulletin 757-25-
0308, Revision 2, dated June 12, 2023. This material specifies
procedures for repetitive horizontal actuator identifications,
repetitive checks of the HMS, a detailed inspection of the HMS, as
applicable, and applicable on-condition actions including an overhaul
and checks of the HMS, with the option to install a serviceable seat
under certain conditions, which terminates the repetitive checks.
The FAA reviewed Boeing Special Attention Service Bulletin 757-25-
0309, Revision 2, dated June 12, 2023. This material specifies
procedures for a general visual inspection to determine the seat part
numbers on the Captain's and First Officer's seats, and, for seats with
certain part numbers, a manual override cable adjustment check of the
Captain's and First Officer's seats, and applicable on-condition
actions including moving the adjustment nut, tightening the lock nut,
and readjusting the control lever.
This AD also requires Boeing Special Attention Service Bulletin
757-25-0308, Revision 1, dated June 7, 2018, which the Director of the
Federal Register approved for incorporation by reference as of January
31, 2019 (83 FR 66612, December 27, 2018).
This material 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.
[[Page 54566]]
Costs of Compliance
The FAA estimates that this AD affects 484 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Parts Cost on U.S.
Action Labor cost cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Identification/check (retained Up to 11 work-hours x $4,820 $5,755 per $2,785,420 per
actions from AD 2018-26[dash]03). $85 per hour = $935 identification/cycle. identification/
per identification/ cycle.
cycle.
Inspection (retained action from Up to 1 work-hour x 0 Up to 85............. 41,140.
AD 2018-26-03). 85 per hour = 85.
Part identification (new action).. 1 work-hour x 85 per 0 85................... 41,140.
hour = 85.
----------------------------------------------------------------------------------------------------------------
Certain configurations of the Captain's and First Officer's seats
may require special tooling to test the seats. Special tooling for one
set of Captain's and First Officer's seats will cost $30,000, and a
certain other set will cost $32,500. If an operator owns both
combinations of seats, the special tooling will cost up to $62,500 per
operator.
We have received no definitive data that would enable us to provide
the remaining cost estimates for the on-condition actions specified in
this AD.
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:
0
a. Removing Airworthiness Directive (AD) 2018-26-03, Amendment 39-19533
(83 FR 66612, December 27, 2018); and
0
b. Adding the following new AD:
2025-20-14 The Boeing Company: Amendment 39-23167; Docket No. FAA-
2025-0473; Project Identifier AD-2024-00281-T.
(a) Effective Date
This airworthiness directive (AD) is effective January 2, 2026.
(b) Affected ADs
This AD replaces AD 2018-26-03, Amendment 39-19533 (83 FR 66612,
December 27, 2018) (AD 2018-26-03).
(c) Applicability
This AD applies to all The Boeing Company Model 757-200 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 movement of the
Captain's and First Officer's seats. The FAA is issuing this AD to
address uncommanded movement of the Captain's or First Officer's
seat, which could lead to reduced controllability of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Identification, Checks and Inspection of Horizontal Movement
System, and On-Condition Actions
For airplanes identified in Boeing Special Attention Service
Bulletin 757-25-0308, Revision 2, dated June 12, 2023: Except as
required by paragraphs (i) and (m) of this AD, at the applicable
times specified in paragraph 1.E., ``Compliance,'' of Boeing Special
Attention Service Bulletin 757-25-0308, Revision 1, dated June 7,
2018, or Revision 2, dated June 12, 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 757-25-0308, Revision 1, dated June 7, 2018, or
Revision 2, dated June 12, 2023. As of the effective date of this
AD, only Boeing Special Attention Service Bulletin 757-25-0308,
Revision 2, dated June 12, 2023, may be used.
(h) Seat Identification, Cable Adjustment, and On-Condition Actions
For airplanes identified in Boeing Special Attention Service
Bulletin 757-25-0309, Revision 2, dated June 12, 2023: Except as
specified by paragraphs (i) and (m) of this AD, at the applicable
times specified in the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0309, Revision 2, dated June 12,
2023, do an inspection to determine the part number of the Captain's
and First Officer's seats, and all applicable on-condition actions
identified in, and in accordance with, the Accomplishment
Instructions of Boeing Special Attention Service Bulletin 757-25-
0309, Revision 2, dated June 12, 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.
[[Page 54567]]
(i) Exceptions to Service Bulletin Specifications for Paragraphs (g)
and (h) of This AD
(1) Where the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0308, Revision 1, dated June 7,
2018, refers to the original issue date of this service bulletin,
this AD requires using January 31, 2019 (the effective date of AD
2018-26-03).
(2) Where the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0308, Revision 2, dated June 12,
2023, refers to the original issue date of this service bulletin,
this AD requires using January 31, 2019 (the effective date of AD
2018-26-03).
(3) Where the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0309, Revision 2, dated June 12,
2023, refers to 72 months after the original issue date of this
service bulletin, this AD requires using 36 months after January 31,
2019 (the effective date of AD 2018-26-03).
(4) Where the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0309, Revision 2, dated June 12,
2023, refers to the Revision 2 date of this service bulletin, this
AD requires using the effective date of this AD.
(j) Identification, Checks and Inspection of Horizontal Movement
System, and On-Condition Actions for Additional Airplanes
For airplanes other than those identified in Boeing Special
Attention Service Bulletin 757-25-0308, Revision 2, dated June 12,
2023: Except as required by paragraphs (l) and (m) of this AD, at
the applicable times specified in paragraph 1.E., ``Compliance,'' of
Boeing Special Attention Service Bulletin 757-25-0308, Revision 2,
dated June 12, 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 757-25-0308, Revision 2, dated June 12, 2023.
(k) Seat Identification, Cable Adjustment, and On-Condition Actions for
Additional Airplanes
For airplanes other than those identified in Boeing Special
Attention Service Bulletin 757-25-0309, Revision 2, dated June 12,
2023: Except as specified by paragraphs (l) and (m) of this AD, at
the applicable times specified in the ``Compliance'' paragraph of
Boeing Special Attention Service Bulletin 757-25-0309, Revision 2,
dated June 12, 2023, do an inspection to determine the part number
of the Captain's and First Officer's seats, and all applicable on-
condition actions identified in, and in accordance with, the
Accomplishment Instructions of Boeing Special Attention Service
Bulletin 757-25-0309, Revision 2, dated June 12, 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.
(l) Exceptions to Service Bulletin Specifications for Paragraphs (j)
and (k) of This AD
(1) Where the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0308, Revision 2, dated June 12,
2023, refers to the original issue date of this service bulletin,
this AD requires using the effective date of this AD.
(2) Where the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0309, Revision 2, dated June 12,
2023, refers to 72 months after the original issue date of this
service bulletin, this AD requires using 36 months after the
effective date of this AD.
(3) Where the ``Compliance'' paragraph of Boeing Special
Attention Service Bulletin 757-25-0309, Revision 2, dated June 12,
2023, refers to the Revision 2 date of this service bulletin, this
AD requires using the effective date of this AD.
(m) Acceptable Conditions for Compliance
If the airplane records show that an Ipeco Captain's or First
Officer's seat installed on an airplane meets the conditions in any
of the three rows for Boeing Special Attention Service Bulletin 757-
25-0308 in table 1 to paragraph (m) of this AD, then the actions in
paragraphs (g) and (j), as applicable, of this AD are not required
for that seat. If the airplane records show that an Ipeco Captain's
or First Officer's seat installed on an airplane meets the
conditions in any of the three rows for Boeing Special Attention
Service Bulletin 757-25-0309 in table 1 to paragraph (m) of this AD,
then the actions specified in paragraphs (h) and (k), as applicable,
of this AD are not required for that seat.
Table 1 to Paragraph (m)--Alternative Acceptable Seats
----------------------------------------------------------------------------------------------------------------
Actions done in accordance with Actions done in
Boeing Special Attention Service accordance with Ipeco Having Ipeco part And additional required
Bulletin-- Service Bulletin-- number (P/N) conditions--
----------------------------------------------------------------------------------------------------------------
757-25-0308, Revision 1, dated June None................... 3A258-0007-01-2, 3A258- No additional
7, 2018, or Revision 2, dated June 0007-01-1Z, 3A258-0008- conditions required.
12, 2023. 01-2, or 3A258-0008-01-
1Z.
757-25-0308, Revision 1, dated June 258-25-15, Issue 4, 3A258-0007-01-1 or Has a horizontal
7, 2018, or Revision 2, dated June dated February 16, 3A258-0008-01-1. actuator with Artus
12, 2023. 2018; Issue 5, dated part number AD8650503
April 29, 2020; or at ``Amendment C'' or
Issue 6, dated later.
November 1, 2021.
757-25-0308, Revision 1, dated June 258-25-16, Issue 4, 3A258-0007-01-1 or Has a horizontal
7, 2018, or Revision 2, dated June dated September 11, 3A258-0008-01-1. actuator with Artus
12, 2023. 2017; or Issue 5, part number AD8650503
dated April 29, 2020. at ``Amendment C'' or
later.
757-25-0309, Revision 1, dated July None................... 3A258-0007-01-2 or No additional
2, 2018, or Revision 2, dated June 3A258-0008-01-2. conditions required.
12, 2023.
757-25-0309, Revision 1, dated July 258-25-08, Issue 4, 3A258-0007-01-1, 3A258- The manual override
2, 2018, or Revision 2, dated June dated April 25, 2014; 0007-01-1Z, 3A258-0008- cable maintenance has
12, 2023. Issue 5, dated March 01-1, or 3A258-0008-01- been completed on the
4, 2020; or Issue 6, 1Z. seat in accordance
dated January 28, 2021. with Ipeco Component
Maintenance Manual 25-
11-26, Revision 16,
dated September 12,
2013, or subsequent
revisions up to and
including Revision 40,
dated December 4,
2023.
757-25-0309, Revision 1, dated July 210-25-04, Issue 2, 3A090-0077-01-1 or The manual override
2, 2018, or Revision 2, dated June dated March 28, 2014; 3A090-0078-01-1. cable maintenance has
12, 2023. or Issue 3, dated been completed on the
March 3, 2020. seat in accordance
with Ipeco Component
Maintenance Manual 25-
10-78, Revision 20,
dated September 12,
2013, or subsequent
revisions up to and
including Revision 29,
dated October 13,
2023.
----------------------------------------------------------------------------------------------------------------
(n) 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 (o)
of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#5e1f13111d1e383f3f70393128"><span class="__cf_email__" data-cfemail="87c6cac8c4c7e1e6e6a9e0e8f1">[email protected]</span></a>. Before
using any approved AMOC, notify your appropriate principal
inspector, or lacking a principal inspector, the manager of the
responsible Flight Standards Office.
[[Page 54568]]
(2) 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.
(3) AMOCs approved for AD 2018-26-03 are approved as AMOCs for
the corresponding provisions of this AD.
(4) For material that contains steps that are labeled as
Required for Compliance (RC), the provisions of paragraphs (n)(4)(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.
(o) Related Information
For more information about this AD, contact Julie Linn, Aviation
Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198;
phone: 206-231-3584; email: <a href="/cdn-cgi/l/email-protection#29635c45404c0765404747694f4848074e465f"><span class="__cf_email__" data-cfemail="ca80bfa6a3afe486a3a4a48aacababe4ada5bc">[email protected]</span></a>.
(p) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the material listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions
required by this AD, unless the AD specifies otherwise.
(3) The following material was approved for IBR on [DATE 35 DAYS
AFTER PUBLICATION OF THE FINAL RULE].
(i) Boeing Special Attention Service Bulletin 757-25-0308,
Revision 2, dated June 12, 2023.
(ii) Boeing Special Attention Service Bulletin 757-25-0309,
Revision 2, dated June 12, 2023.
(4) The following material was approved for IBR on January 31,
2019 (83 FR 66612, December 27, 2018).
(i) Boeing Special Attention Service Bulletin 757-25-0308,
Revision 1, dated June 7, 2018.
(ii) [Reserved]
(5) For Boeing material 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 <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
(6) You may view this material 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 material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a> or email <a href="/cdn-cgi/l/email-protection#4a2c38642324393a2f293e2325240a242b382b642d253c"><span class="__cf_email__" data-cfemail="97f1e5b9fef9e4e7f2f4e3fef8f9d7f9f6e5f6b9f0f8e1">[email protected]</span></a>.
Issued on September 29, 2025.
Lona C. Saccomando,
Acting Deputy Director, Integrated Certificate Management Division,
Aircraft Certification Service.
[FR Doc. 2025-21474 Filed 11-26-25; 8:45 am]
BILLING CODE 4910-13-P
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