Data / Federal rules / 2025-18497
Airworthiness Directives; Leonardo S.p.A. Helicopters
The Federal Aviation Administration published this final rule in the Federal Register on September 24, 2025. It took effect on October 9, 2025.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.A. Model AW189 helicopters. This AD was prompted by a report of a fire occurring during the operational check of the engine anti-icing system. This AD requires inspecting and measuring the resistance of the air intake electrical connectors, inspecting the bonding strap, reporting the results of the inspections, and depending on the results of the inspection, accomplishing corrective actions. This AD also prohibits the installation of an air intake controller unless certain actions are accomplished. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-18497
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- September 24, 2025
- Takes effect
- October 9, 2025
- Dates
- This AD is effective October 9, 2025.
- Docket
- Docket No. FAA-2025-2550; Project Identifier MCAI-2025-01211-R; Amendment 39-23150; AD 2025-19-10
- 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 September 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.