Data / Federal rules / 2026-05098
Airworthiness Directives; Leonardo S.p.a. Helicopters
The Federal Aviation Administration published this final rule in the Federal Register on March 16, 2026. It took effect on March 31, 2026. Comments closed on April 30, 2026.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AB139 and AW139 helicopters with a certain supplemental type certificate (STC) installed. This AD was prompted by the absence of instructions on the information placards located next to the rear-facing seats to lock the seat headrest in the highest position during takeoff and landing. This AD requires revising the existing rotorcraft flight manual supplement (RFMS) and replacing the information placard with one that specifies instructions for locking the seat headrest. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-05098
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- March 16, 2026
- Takes effect
- March 31, 2026
- Comments due
- April 30, 2026
- Dates
- This AD is effective March 31, 2026.
- Docket
- Docket No. FAA-2026-2711; Project Identifier MCAI-2024-00232-R; Amendment 39-23289; AD 2026-06-01
- 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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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in March 2026
Read from the Federal Register API, last updated 2026-10-24. 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.