2025-15-07: Equipment/furnishings

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive (AD) 2025-01-08, Amendment 39-22932 (90 FR 9382, February 12, 2025); and b. Adding the following new AD: 2025-15-07 The Boeing Company: Amendment 39-23094; Docket No. FAA-2025-1722; Project Identifier AD-2025-01176-T. (a) Effective Date This airworthiness directive (AD) is effective August 13, 2025. (b) Affected ADs This AD replaces AD 2025-01-08, Amendment 39-22932 (90 FR 9382, February 12, 2025) (AD 2025-01-08). (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 paragraphs (i) and (j) of this AD: At the applicable times specified in the "Compliance" paragraph of Boeing Special Attention Service 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 Service 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. (i) Exceptions to Service Information Specifications (1) Where the "Compliance" paragraph of Boeing Special Attention Service Bulletin 747-25-3653, Revision 2, dated January 27, 2023, refers to the original issue date of this service bulletin, this AD requires using January 16, 2020 (the effective date of AD 2019-22-02, Amendment 39-19781 (84 FR 67854, December 12, 2019) (AD 2019-22-02), which was superseded by AD 2025-01-08). (2) Where the "Compliance" paragraph of Boeing Special Attention Service 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 Service 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 March 19, 2025 (the effective date of AD 2025-01-08). (j) 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 eleven rows for Boeing Special Attention Service Bulletin 747-25-3644, Revision 1, dated July 17, 20218, in Table 1 to paragraph (j) of this AD, then the actions in paragraph (g) of this AD are not required for that seat. If the airplane records show that an Ipeco Captain's or First Officer's seat meets the conditions in any of the three rows for Boeing Special Attention Service Bulletin 747-25-3653, Revision 1, dated October 19, 2018, in Table 1 to paragraph (j) of this AD, then the actions specified in paragraph (h) of this AD are not required for that seat. Table 1 to Paragraph ( j )-Alternative Acceptable Seats Actions done in accordance with Boeing Special Attention Service Bulletin- Actions done in accordance with Ipeco Service Bulletin- Having Ipeco P/N- And additional required conditions- 747-25-3644, Revision 1, dated July 17, 2018 None 3A258-0041-01-2 or 3A258-0042-01-2 No additional conditions required. 747-25-3644, Revision 1, dated July 17, 2018 097-25-02, Issue 1, dated October 2, 2013; or Issue 2, dated March 28, 2014; or Issue 3, dated March 4, 2020 3A090-0027-01-1 or 3A090-0028-01-1 The manual override cable maintenance has been completed on the seat in accordance with the Ipeco 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 17, 2018 107-25-03, Issue 1, dated October 2, 2013; or Issue 2, dated March 28, 2014; or Issue 3, dated March 4, 2020 3A090-0055-01-1 or 3A090-0056-01-1 The manual override cable maintenance has been completed on the seat in accordance with the Ipeco 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 17, 2018 112-25-02, Issue 1, dated November 4, 2013; or Issue 2, dated March 28, 2014; or Issue 3, dated March 18, 2020; or Issue 4, dated May 7, 2021 3A090-0065-01-1 or 3A090-0066-01-1 The manual override cable maintenance has been completed on the seat in accordance with the Ipeco Component Maintenance Manual 25-11-01, 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 17, 2018 209-25-02, Issue 1, dated November 13, 2013; or Issue 2, dated March 28, 2014; or Issue 3, dated March 4, 2020 3A090-0075-01-1 or 3A090-0076-01-1 The manual override cable maintenance has been completed on the seat in accordance with the Ipeco 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 17, 2018 211-25-04, Issue 1, dated November 4, 2013; or Issue 2, dated March 28, 2014; or Issue 3, dated March 4, 2020 3A090-0079-01-1 or 3A090-0080-01-1 The manual override cable maintenance has been completed on the seat in accordance with the Ipeco 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 17, 2018 212-25-03, Issue 1, dated November 4, 2013; or Issue 2, dated March 28, 2014; or Issue 3, dated March 4, 2020 3A090-0081-01-1 or 3A090-0082-01-1 The manual override cable maintenance has been completed on the seat in accordance with the Ipeco 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 17, 2018 258-25-08, Issue 4, dated April 25, 2014; or Issue 5, dated March 4, 2020; or Issue 6, dated January 28, 2021 3A258-0041-01-1 or 3A258-0042-01-1 Does not have a serial number identified by the effectivity of the referenced Ipeco Service Bulletins. 747-25-3644, Revision 1, dated July 17, 2018 258-25-08, Issue 4, dated April 25, 2014; or Issue 5, dated March 4, 2020; or Issue 6, dated January 28, 2021 3A258-0041-01-1 or 3A258-0042-01-1 The manual override 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. 747-25-3644, Revision 1, dated July 17, 2018 258-25-08, Issue 6, dated January 28, 2021 3A258-0041-01-1Z or 3A258-0042-01-1Z Does not have a serial number identified by the effectivity of the referenced Ipeco Service Bulletin. 747-25-3644, Revision 1, dated July 17, 2018 258-25-08, Issue 6, dated January 28, 2021 3A258-0041-01-1Z or 3A258-0042-01-1Z The manual override 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 October 19, 2018 None 3A258-0041-01-2, 3A258-0041-01-1Z, 3A258-0042-01-2 or 3A258-0042-01-1Z No additional conditions required. 747-25-3653, Revision 1, dated October 19, 2018 258-25-13, Issue 3, dated November 27, 2017; or Issue 4, dated April 28, 2020, or Issue 5; dated November 1, 2021 3A258-0041-01-1 or 3A258-0042-01-1 Has a horizontal actuator with Artus part number AD8650503 at "Amendment C" or later. 747-25-3653, Revision 1, dated October 19, 2018 258-25-14, Issue 4, dated January 29, 2018; or Issue 5, dated April 28, 2020 3A258-0041-01-1 or 3A258-0042-01-1 Has a horizontal actuator with Artus part number AD8650503 at "Amendment C" or later. (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: AMOC@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) Except as required by paragraph (i) of this AD: For material that contains steps that are labeled as Required for Compliance (RC), the provisions of paragraphs (k)(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. (l) Related Information For more information about this AD, contact Julie Linn, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone 206-231-3584; email Julie.Linn@faa.gov. (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 this AD specifies otherwise. (3) The following material was approved for IBR on March 19, 2025 (90 FR 9382, February 12, 2025). (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. (4) 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 myboeingfleet.com . (5) 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. (6) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email fr.inspection@nara.gov . Issued on July 25, 2025. Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2025-14354 Filed 7-28-25; 8:45 am]BILLING CODE 4910-13-P