Data / Federal rules / 2026-16047
Airworthiness Directives; Airbus Helicopters
The Federal Aviation Administration published this final rule in the Federal Register on August 6, 2026. It took effect on September 10, 2026.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, EC130B4, and EC130T2 helicopters. This AD was prompted by reports of an incorrectly installed engine flange on the main gear box (MGB) engine coupling. This AD requires inspecting the MGB engine coupling for correct installation and, depending on the results, corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-16047
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- August 6, 2026
- Takes effect
- September 10, 2026
- Dates
- This AD is effective September 10, 2026.
- Docket
- Docket No. FAA-2026-4638; Project Identifier MCAI-2023-00794-R; Amendment 39-23431; AD 2026-16-01
- 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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| Airworthiness Directives; Airbus Helicopters 2026-21387 | Proposed rule | Oct 19 |
Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in August 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.