Data / Federal rules / 2025-19891
Airworthiness Directives; The Boeing Company Airplanes
The Federal Aviation Administration published this final rule in the Federal Register on November 14, 2025. It took effect on December 1, 2025. Comments closed on December 29, 2025.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model MD-11 and MD-11F airplanes. This AD was prompted by an accident where the left-hand engine and pylon detached from the airplane during takeoff. This AD prohibits further flight until the airplane is inspected and all applicable corrective actions are performed using a method approved by the FAA. The FAA previously sent an emergency AD to all known U.S. owners and operators of these airplanes. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-19891
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- November 14, 2025
- Takes effect
- December 1, 2025
- Comments due
- December 29, 2025
- Dates
- This AD is effective on December 1, 2025. Emergency AD 2025-23- 51, issued on November 8, 2025, which contains the requirements of this amendment, was effective with actual notice.
- Docket
- Docket No. FAA-2025-4002; Project Identifier AD-2025-01671-T; Amendment 39-23193; AD 2025-23-51
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in November 2025
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.