# Proposed AD FAA-2025-0473: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-20-14
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 31, 2025, 90 FR 14213
- Comments due: May 15, 2025
- Became: [AD 2025-20-14](https://openairdocs.org/ad/2025-20-14)
- Docket: FAA-2025-0473 (https://www.regulations.gov/docket/FAA-2025-0473, where comments are filed)
- Project: AD-2024-00281-T
- FR document: 2025-04985
- Official PDF: https://openairdocs.org/files/sha256/8d/d6/8dd65433fbdfbe0dca46b9950dc0b20b8af716b7166650f7eab8fc5914db7d8d (from https://www.govinfo.gov/content/pkg/FR-2025-03-31/pdf/2025-04985.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/03/31/2025-04985/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-04985-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-0473

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2018-26-03, which applies to all The Boeing Company Model 757-200 series airplanes. AD 2018-26-03 requires, 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 requires 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. Since the FAA issued AD 2018-26-03, the FAA has determined that additional seats are affected by the unsafe condition. This proposed AD would retain the actions required by AD 2018-26-03 and add an inspection for previously omitted part numbers. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Mar 31, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-04985, comments due May 15, 2025 (https://www.federalregister.gov/documents/2025/03/31/2025-04985/airworthiness-directives-the-boeing-company-airplanes)

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