Rule2025-02382
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
February 12, 2025
Effective
March 19, 2025
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2019-22- 02, which applied to all The Boeing Company Model 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and 747-8 series airplanes. AD 2019-22-02 required identifying the part number, and the serial number if applicable, of the Captain's and First Officer's seats, and applicable on-condition actions for affected seats. AD 2019-22-02 also required a one-time detailed inspection and repetitive checks of the horizontal movement system (HMS) of the Captain's and First Officer's seats, and applicable on-condition actions. This AD was prompted by reports of uncommanded fore and aft movement of the Captain's and First Officer's seats. This AD requires the actions in AD 2019-22-02 and adds an inspection of 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 28 (Wednesday, February 12, 2025)</title>
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<body><pre>
[Federal Register Volume 90, Number 28 (Wednesday, February 12, 2025)]
[Rules and Regulations]
[Pages 9382-9386]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-02382]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-2137; Project Identifier AD-2023-00297-T;
Amendment 39-22932; AD 2025-01-08]
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) 2019-22-
02, which applied to all The Boeing Company Model 747-200B, 747-200C,
747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and 747-8
series airplanes. AD 2019-22-02 required identifying the part number,
and the serial number if applicable, of the Captain's and First
Officer's seats, and applicable on-condition actions for affected
seats. AD 2019-22-02 also required a one-time detailed inspection and
repetitive checks of the horizontal movement system (HMS) of the
Captain's and First Officer's seats, and applicable on-condition
actions. This AD was prompted by reports of uncommanded fore and aft
movement of the Captain's and First Officer's seats. This AD requires
the actions in AD 2019-22-02 and adds an inspection of previously
omitted part numbers. The FAA is issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective March 19, 2025.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of March 19,
2025.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-2137; 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 Boulevard, MC 110-SK57, Seal Beach, CA 90740-5600;
phone 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-2024-2137.
FOR FURTHER INFORMATION CONTACT: Courtney Tuck, Aviation Safety
Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone
206-231-3986; email <a href="/cdn-cgi/l/email-protection#b2f1ddc7c0c6dcd7cb9cf99ce6c7d1d9f2d4d3d39cd5ddc4"><span class="__cf_email__" data-cfemail="fab9958f888e949f83d4b1d4ae8f9991ba9c9b9bd49d958c">[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 2019-22-02, Amendment 39-19781 (84 FR
67854, December 12, 2019) (AD 2019-22-02). AD 2019-22-02 applied to all
The Boeing Company Model 747-200B, 747-200C, 747-200F, 747-300, 747-
400, 747-400D, 747-400F, 747-8F, and 747-8 series airplanes. The NPRM
published in the Federal Register on September 9, 2024 (89 FR 73014).
The NPRM was prompted by reports of uncommanded fore and aft movement
of the Captain's and First Officer's seats. In the NPRM, the FAA
proposed to continue to require the actions in AD 2019-22-02 and add an
inspection of previously omitted part numbers. The FAA is issuing this
AD to address uncommanded fore and aft movement of the Captain's and
First Officer's seats. An uncommanded fore or 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.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from the Air Line Pilots Association,
International, who supported the NPRM without change.
The FAA received additional comments from United Parcel Service Co.
(UPS). The following presents the comments received on the NPRM and the
FAA's response to each comment.
Request To Correct Service Date
United requested that the date on Boeing Special Attention Service
Bulletin 747-25-3653, Revision 1, be corrected to read October 19,
2018. UPS commented that table 1 to paragraph (j) in the proposed AD
lists Boeing Special Attention Service Bulletin 747-25-3653, Revision
1, with the incorrect date of October 18, 2018.
The FAA agrees that Boeing Service Bulletin 747-25-3653, Revision
1, called out three times in table 1 to paragraph (j) of this AD,
should have the revision date of October 19, 2018, not October 18,
2018. The correct date has been reflected in this AD.
Request To Add Missing Ipeco Service Bulletin Issue to Table 1
UPS requested that all references in table 1 to paragraph (j) in
the proposed AD related to IPECO SB 258-25-08 should say ``IPECO SB
258-25-08, Issue 4 or later.'' UPS noted that in table 1 to paragraph
(j) in the proposed AD for IPECO P/N 3A258-0041-01-1 or 3A258-0042-01-
1, only Issues 5 and 6 of IPECO SB 258-25-08 are identified for
installation. Boeing Service Bulletin 747-25-3644, Revision 1, dated
July 17, 2018, also listed the accomplishment of IPECO SB 258-25-08,
Issue 4, along with Issues 5 and 6. Issues 4, 5, and 6 of this service
bulletin all list the same work steps for accomplishment for the
[[Page 9383]]
IPECO P/N 3A258-0041-01-1 or 3A258-0042-01-1 seats.
The FAA agrees with the request and has included in this AD Ipeco
SB 258-25-08, Issue 4, dated April 25, 2014, in Table 1 to paragraph
(j) of this AD for Ipeco P/N 3A258-0041-01-1 or 3A258-0042-01-1.
Request To Clarify Intent of Service Bulletin 747-25-3644
UPS stated that paragraph (j) lacks details to ensure the operators
understand the intent of table 1 to paragraph (j) in the proposed AD
for Service Bulletin 747-25-3644. UPS therefore requested that table 1
to paragraph (j) in the proposed AD state that no further actions are
required if the operator has completed either action in the applicable
IPECO service bulletin or the performed manual override cable
maintenance in accordance with the component maintenance manual.
The FAA disagrees to revise paragraph (j) of this AD. Boeing SB
747-25-3644 Revision 1, dated July 17, 2018, states that if the
applicable Ipeco P/N has a serial number identified by the effectivity
of the applicable Ipeco service bulletin and the manual override cable
maintenance has been completed on the seat in accordance with the Ipeco
CMM listed in the table, no further action is required for this seat.
The Ipeco service bulletin also state whether the Ipeco service
bulletin does not apply to those seats where maintenance logs show that
the cables have been inspected, replaced, or adjusted per the
applicable CMM. The FAA has not changed this AD as a result of this
comment.
Request To Change the Wording in Column Headers
UPS requested that the wording ``Installation per Boeing Special
Attention SB'' and ``Installation per IPECO SB'' for column headers
should be titled ``Work Accomplished in accordance with . . . .'' UPS
stated these documents are provided for guidance to the operators on
how to comply with a safety issue.
The FAA agrees to change the headings for the first two columns of
table 1 to paragraph (j) of this AD to ``Actions done in accordance
with Boeing Special Attention Service Bulletin'' and ``Actions done in
accordance with Ipeco Service Bulletin.''
Conclusion
The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting this AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these products. Except for minor editorial changes, and
any other changes described previously, this AD is adopted as proposed
in the NPRM. None of the changes will increase the economic burden on
any operator.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed Boeing Special Attention Service Bulletin 747-25-
3644, Revision 2, dated January 27, 2023. This material specifies
procedures for identification of the part number, and the serial number
if applicable, of the Captain's and First Officer's seats, and
applicable on-condition actions. On-condition actions include an
inspection of each seat's fore and aft and vertical manual control
levers for looseness, installation of serviceable seats, and a seat
operational test after any cable adjustment. This material also adds
Ipeco seat part numbers 3A258-0041-01-1Z and 3A258-0042-01-1Z.
The FAA also reviewed Boeing Special Attention Service Bulletin
747-25-3653, Revision 2, dated January 27, 2023. This material
describes procedures for a detailed inspection and repetitive checks of
the HMS (including for any Artus part and amendment numbers of the
horizontal actuator of the HMS) 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 HMS, and replacing the
horizontal actuator. This material also describes procedures for an
optional terminating action for the repetitive checks by installing a
serviceable Captain's or First Officer's seat.
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.
Costs of Compliance
The FAA estimates that this AD affects 162 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions per Seat
--------------------------------------------------------------------------------------------------------------------------------------------------------
Parts
Action Labor cost cost Cost per product Cost on U.S. operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
Identification, seat (retained 1 work-hour x $85 per $0 $85................................... Up to $117,980.
actions from AD 2019[dash]22-02). hour = $85.
Detailed inspection, HMS (retained 1 work-hour x $85 per 0 $85................................... $27,540.
actions from AD 2019[dash]22-02). hour = $85.
Checks, HMS (retained actions from AD 2 work-hours x $85 per 0 $170 per check cycle.................. $55,080 per check cycle.
2019-22-02). hour = $170 per check
cycle.
--------------------------------------------------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary on-
condition actions that will 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 *
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
Adjustment, control lever 1 work-hour x $0............................. $85.
cable. $85 per hour =
$85.
Overhaul, HMS................ 11 work-hours x Up to $5,824................... Up to $6,759.
$85 per hour =
$935.
Inspection of each seat's 1 work-hour x $0............................. $85 per seat.
fore/aft and vertical manual $85 per hour =
control levers. $85 per seat.
Installation of serviceable 1 work-hour x $0............................. $85 per seat.
seats. $85 per hour =
$85 per seat.
[[Page 9384]]
Clearing FOD................. 1 work-hour x $0............................. $85 per seat.
$85 per hour =
$85 per seat.
Replacement of the horizontal 1 work-hour x $7,937 per actuator............ $8,022 per actuator.
actuator. $85 per hour =
$85 per
actuator.
Operational test, adjusted 1 work-hour x $0............................. $85 per seat.
control lever cable. $85 per hour =
$85 per seat.
----------------------------------------------------------------------------------------------------------------
* 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 received no definitive data that would enable the FAA
to provide cost estimates for the optional terminating action for the
repetitive checks 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) 2019-22-02, Amendment 39-19781
(84 FR 67854, December 12, 2019) (AD 2019-22-02); and
0
b. Adding the following new AD:
2025-01-08 The Boeing Company: Amendment 39-22932; Docket No. FAA-
2024-2137; Project Identifier AD-2023-00297-T.
(a) Effective Date
This airworthiness directive (AD) is effective March 19, 2025.
(b) Affected ADs
This AD replaces AD 2019-22-02, Amendment 39-19781 (84 FR 67854,
December 12, 2019) (AD 2019-22-02).
(c) Applicability
This AD applies to all The Boeing Company Model 747-200B, 747-
200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747-8F, and
747-8 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 and aft
movement of the Captain's and First Officer's seats. The FAA is
issuing this AD to address uncommanded fore and aft movement of the
Captain's and First Officer's seats. The unsafe condition, if not
addressed, could result in an uncommanded fore or aft seat movement
during a critical part of a flight, such as takeoff or landing, and
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 by paragraphs (i) and (j) of this AD: At the
applicable times specified in the ``Compliance'' paragraph of Boeing
Special Attention Service Bulletin 747-25-3644, 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 all applicable on-condition actions identified in, and in
accordance with the Accomplishment Instructions of Boeing Special
Attention Service Bulletin 747-25-3644, 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 by paragraph (i) and (j) of this AD: At the
applicable times specified in the ``Compliance'' paragraph of Boeing
Special Attention Bulletin 747-25-3653, 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 Bulletin 747-25-3653,
Revision 2, dated January 27, 2023. Actions identified as
terminating action in Boeing Special Attention Service Bulletin 747-
25-3653, 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 747-25-3653, Revision 2,
dated January 27, 2023.
[[Page 9385]]
(i) Exceptions to Service Information Specifications
(1) Where the ``Compliance'' paragraph of Boeing Special
Attention Bulletin 747-25-3653, Revision 2, dated January 27, 2023,
refers to the original issue date of this bulletin, this AD requires
using January 16, 2020 (the effective date of AD 2019-22-02).
(2) Where the ``Compliance'' paragraph of Boeing Special
Attention Bulletin 747-25-3644, Revision 2, dated January 27, 2023,
refers to 72 months after the original issue date of this service
bulletin, this AD requires using 36 months after January 16, 2020
(the effective date of AD 2019-22-02).
(3) Where the ``Compliance'' paragraph of Boeing Special
Attention Bulletin 747-25-3644, Revision 2, dated January 27, 2023,
refers to the Revision 2 date of this service bulletin, this AD
requires using the effective date of the AD.
(j) Acceptable Conditions for Compliance
If the airplane records show that an Ipeco Captain's or First
Officer's seat meets all criteria specified in any row in table 1 to
paragraph (j) of this AD, the actions specified in paragraphs (g)
and (h) of this AD are not required for that seat.
Table 1 to Paragraph (j)--Alternative Acceptable Seats
----------------------------------------------------------------------------------------------------------------
Actions done in accordance with Actions done in
Boeing Special Attention Service accordance with Ipeco Having Ipeco P/N-- And additional required
Bulletin-- Service Bulletin-- conditions--
----------------------------------------------------------------------------------------------------------------
747-25-3644, Revision 1, dated July None................... 3A258-0041-01-2 or No additional
17, 2018. 3A258-0042-01-2. conditions required.
747-25-3644, Revision 1, dated July 097-25-02, Issue 1, 3A090-0027-01-1 or The manual override
17, 2018. dated October 2, 2013; 3A090-0028-01-1. cable maintenance has
or Issue 2, dated been completed on the
March 28, 2014; or seat in accordance
Issue 3, dated March with the Ipeco
4, 2020. Component Maintenance
Manual 25-10-94,
Revision 10, dated
September 13, 2019, or
subsequent revisions
up to and including
Revision 15, dated
August 10, 2021.
747-25-3644, Revision 1, dated July 107-25-03, Issue 1, 3A090-0055-01-1 or The manual override
17, 2018. dated October 2, 2013; 3A090-0056-01-1. cable maintenance has
or Issue 2, dated been completed on the
March 28, 2014; or seat in accordance
Issue 3, dated March with the Ipeco
4, 2020. Component Maintenance
Manual 25-10-97,
Revision 14, dated
December 5, 2013, and
subsequent revisions
up to and including
Revision 22, dated
March 19, 2021.
747-25-3644, Revision 1, dated July 112-25-02, Issue 1, 3A090-0065-01-1 or The manual override
17, 2018. dated November 4, 3A090-0066-01-1. cable maintenance has
2013; or Issue 2, been completed on the
dated March 28, 2014; seat in accordance
or Issue 3, dated with the Ipeco
March 18, 2020; or Component Maintenance
Issue 4, dated May 7, Manual 25-11-01,
2021. Revision 9, dated
September 20, 2013,
and subsequent
revisions up to and
including Revision 18,
dated December 19,
2021.
747-25-3644, Revision 1, dated July 209-25-02, Issue 1, 3A090-0075-01-1 or The manual override
17, 2018. dated November 13, 3A090-0076-01-1. cable maintenance has
2013; or Issue 2, been completed on the
dated March 28, 2014; seat in accordance
or Issue 3, dated with the Ipeco
March 4, 2020. Component Maintenance
Manual 25-11-32,
Revision 4, dated
September 27, 2013,
and subsequent
revisions up to and
including Revision 9,
dated July 23, 2020.
747-25-3644, Revision 1, dated July 211-25-04, Issue 1, 3A090-0079-01-1 or The manual override
17, 2018. dated November 4, 3A090-0080-01-1. cable maintenance has
2013; or Issue 2, been completed on the
dated March 28, 2014; seat in accordance
or Issue 3, dated with the Ipeco
March 4, 2020. Component Maintenance
Manual 25-10-79,
Revision 23, dated
September 5, 2013, and
subsequent revisions
up to and including
Revision 31, dated
July 23, 2020.
747-25-3644, Revision 1, dated July 212-25-03, Issue 1, 3A090-0081-01-1 or The manual override
17, 2018. dated November 4, 3A090-0082-01-1. cable maintenance has
2013; or Issue 2, been completed on the
dated March 28, 2014; seat in accordance
or Issue 3, dated with the Ipeco
March 4, 2020. Component Maintenance
Manual 25-10-80,
Revision 9, dated
September 27, 2013,
and subsequent
revisions up to and
including Revision 15,
dated July 23, 2020.
747-25-3644, Revision 1, dated July 258-25-08, Issue 4, 3A258-0041-01-1 or Does not have a serial
17, 2018. dated April 25, 2014; 3A258-0042-01-1. number identified by
or Issue 5, dated the effectivity of the
March 4, 2020; or referenced Ipeco
Issue 6, dated January Service Bulletins.
28, 2021.
747-25-3644, Revision 1, dated July 258-25-08, Issue 4, 3A258-0041-01-1 or The manual override
17, 2018. dated April 25, 2014; 3A258-0042-01-1. cable maintenance has
or Issue 5, dated been completed on the
March 4, 2020; or seat in accordance
Issue 6, dated January with the Ipeco
28, 2021. Component Maintenance
Manual 25-11-38,
Revision 21, dated
December 12, 2013, or
subsequent revisions
up to and including
Revision 53, dated
December 4, 2023.
747-25-3644, Revision 1, dated July 258-25-08, Issue 6, 3A258-0041-01-1Z or Does not have a serial
17, 2018. dated January 28, 2021. 3A258-0042-01-1Z. number identified by
the effectivity of the
referenced Ipeco
Service Bulletin.
747-25-3644, Revision 1, dated July 258-25-08, Issue 6, 3A258-0041-01-1Z or The manual override
17, 2018. dated January 28, 2021. 3A258-0042-01-1Z. cable maintenance has
been completed on the
seat in accordance
with the Ipeco
Component Maintenance
Manual 25-11-38,
Revision 21, dated
December 12, 2013, or
subsequent revisions
up to and including
Revision 53, dated
December 4, 2023.
747-25-3653, Revision 1, dated None................... 3A258-0041-01-2, 3A258- No additional
October 19, 2018. 0041-01-1Z, 3A258-0042- conditions required.
01-2 or 3A258-0042-01-
1Z.
747-25-3653, Revision 1, dated 258-25-13, Issue 3, 3A258-0041-01-1 or Has a horizontal
October 19, 2018. dated November 27, 3A258-0042-01-1. actuator with Artus
2017; or Issue 4, part number AD8650503
dated April 28, 2020, at ``Amendment C'' or
or Issue 5; dated later.
November 1, 2021.
747-25-3653, Revision 1, dated 258-25-14, Issue 4, 3A258-0041-01-1 or Has a horizontal
October 19, 2018. dated January 29, 3A258-0042-01-1. actuator with Artus
2018; or Issue 5, part number AD8650503
dated April 28, 2020. at ``Amendment C'' or
later.
----------------------------------------------------------------------------------------------------------------
[[Page 9386]]
(k) 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 (l)
of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#783935373b381e1919561f170e"><span class="__cf_email__" data-cfemail="85c4c8cac6c5e3e4e4abe2eaf3">[email protected]</span></a>.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the responsible Flight Standards Office.
(3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by The Boeing Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, 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 2019-22-02 are approved as AMOCs for
the corresponding provisions of Boeing Special Attention Service
Bulletin 747-25-3644, Revision 2, dated January 27, 2023, and Boeing
Special Attention Service Bulletin 747-25-3653, Revision 2, dated
January 27, 2023, that are required by paragraphs (g) and (h) of
this AD.
(5) For service information that contains steps that are labeled
as Required for Compliance (RC), the provisions of paragraphs
(k)(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.
(l) Related Information
For more information about this AD, contact Courtney Tuck,
Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines,
WA 98198; phone 206-231-3986; email <a href="/cdn-cgi/l/email-protection#5b18342e292f353e227510750f2e38301b3d3a3a753c342d"><span class="__cf_email__" data-cfemail="52113d2720263c372b7c197c06273139123433337c353d24">[email protected]</span></a>.
(m) 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.
(i) Boeing Special Attention Service Bulletin 747-25-3644,
Revision 2, dated January 27, 2023.
(ii) Boeing Special Attention Service Bulletin 747-25-3653,
Revision 2, dated January 27, 2023.
(3) For Boeing material identified in this AD, contact Boeing
Commercial Airplanes, Attention: Contractual & Data Services (C&DS),
2600 Westminster Boulevard, MC 110-SK57, Seal Beach, CA 90740-5600;
phone 562-797-1717; website <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
(4) You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th
Street, Des Moines, WA. For information on the availability of this
material at the FAA, call 206-231-3195.
(5) 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#5137237f383f2221343225383e3f113f3023307f363e27"><span class="__cf_email__" data-cfemail="e58397cb8c8b96958086918c8a8ba58b849784cb828a93">[email protected]</span></a>.
Issued on January 29, 2025.
Suzanne Masterson,
Deputy Director, Integrated Certificate Management Division, Aircraft
Certification Service.
[FR Doc. 2025-02382 Filed 2-11-25; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on February 12, 2025.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.