# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2025-11-28 · Effective 2026-01-02 · 90 FR 54563
## Document
- **Document number:** 2025-21474
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 90 FR 54563
- **Publication date:** 2025-11-28
- **Effective date:** 2026-01-02
- **FAA docket:** Docket No. FAA-2025-0473
## 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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/11/28/2025-21474/airworthiness-directives-the-boeing-company-airplanes)
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