Summary
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.
Directive Details
AD Number
FAA-2025-3997
Document Number
2026-19751
Type
Rule
Publication Date
September 28, 2026
Effective Date
November 2, 2026
Affected Manufacturer
The Boeing Company
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2025-3997
Topics
Official Documents
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