Airworthiness Directive · Amendment 39-23167 · Equipment/furnishings
The Boeing Company Airplanes
This AD applies to all The Boeing Company Model 757-200 series airplanes, certificated in any category.
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.
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.
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.
(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.
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.
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.
(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.
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.
| Actions done in accordance with Boeing Special Attention Service Bulletin— | Actions done in accordance with Ipeco Service Bulletin— | Having Ipeco part number (P/N) | And additional required conditions— |
|---|---|---|---|
| 757-25-0308, Revision 1, dated June 7, 2018, or Revision 2, dated June 12, 2023 | None | 3A258-0007-01-2, 3A258-0007-01-1Z, 3A258-0008-01-2, or 3A258-0008-01-1Z | No additional conditions required. |
| 757-25-0308, Revision 1, dated June 7, 2018, or Revision 2, dated June 12, 2023 | 258-25-15, Issue 4, dated February 16, 2018; Issue 5, dated April 29, 2020; or Issue 6, dated November 1, 2021 | 3A258-0007-01-1 or 3A258-0008-01-1 | Has a horizontal actuator with Artus part number AD8650503 at “Amendment C” or later. |
| 757-25-0308, Revision 1, dated June 7, 2018, or Revision 2, dated June 12, 2023 | 258-25-16, Issue 4, dated September 11, 2017; or Issue 5, dated April 29, 2020 | 3A258-0007-01-1 or 3A258-0008-01-1 | Has a horizontal actuator with Artus part number AD8650503 at “Amendment C” or later. |
| 757-25-0309, Revision 1, dated July 2, 2018, or Revision 2, dated June 12, 2023 | None | 3A258-0007-01-2 or 3A258-0008-01-2 | No additional conditions required. |
| 757-25-0309, Revision 1, dated July 2, 2018, or Revision 2, dated June 12, 2023 | 258-25-08, Issue 4, dated April 25, 2014; Issue 5, dated March 4, 2020; or Issue 6, dated January 28, 2021 | 3A258-0007-01-1, 3A258-0007-01-1Z, 3A258-0008-01-1, or 3A258-0008-01-1Z | The manual override cable maintenance has been completed on the seat in accordance 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 2, 2018, or Revision 2, dated June 12, 2023 | 210-25-04, Issue 2, dated March 28, 2014; or Issue 3, dated March 3, 2020 | 3A090-0077-01-1 or 3A090-0078-01-1 | The manual override cable maintenance has been completed on the 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. |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
