# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2026-09-28 · Effective 2026-11-02 · 91 FR 61127
## Document
- **Document number:** 2026-19751
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 91 FR 61127
- **Publication date:** 2026-09-28
- **Effective date:** 2026-11-02
- **FAA docket:** Docket No. FAA-2025-3997
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes. This AD was prompted by a report of an overheated alternating current motor pump (ACMP) that caused a fire in the main landing gear (MLG) wheel well. This AD requires a records check or inspection for any installed ACMP with a certain part number and applicable on-condition actions. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/09/28/2026-19751/airworthiness-directives-the-boeing-company-airplanes)
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