Data / Federal rules / 2026-20666
Airworthiness Directives; Engine Alliance Engines
The Federal Aviation Administration published this final rule in the Federal Register on October 8, 2026. It took effect on October 23, 2026. Comments are due by November 23, 2026.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain Engine Alliance (EA) Model GP7270, GP7272, and GP7277 engines. This AD was prompted by a report of an aborted takeoff that resulted from an uncontained failure of the high-pressure turbine (HPT) interstage seal. This AD requires removal from service and replacement of the HPT interstage seal with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-20666
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- October 8, 2026
- Takes effect
- October 23, 2026
- Comments due
- November 23, 2026
- Dates
- This AD is effective October 23, 2026.
- Docket
- Docket No. FAA-2026-11801; Project Identifier AD-2026-00946-E; Amendment 39-23485; AD 2026-20-12
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in October 2026
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.