Data / Federal rules / 2025-22218
Airworthiness Directives; Airbus Helicopters
The Federal Aviation Administration published this final rule in the Federal Register on December 8, 2025. It took effect on January 12, 2026.
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What the agency says
The FAA is superseding Airworthiness Directive (AD) 2020-06- 12, which applied to certain Airbus Helicopters Model AS 332L2 and EC 225LP helicopters. AD 2020-06-12 required determining the accumulated hours time-in-service (TIS) of certain part-numbered main gearbox (MGB) suspension bar attachment bolts (bolt) and certain part-numbered MGB suspension bar attachment fittings (fitting), applying a life limit add-on factor, and inspecting the torque of certain MGB suspension bar attachment nuts (nuts). Since the FAA issued AD 2020-06-12, the manufacturer developed a design improvement, and the FAA determined that modifying the helicopter is necessary. This AD retains the actions required by AD 2020-06-12 and requires the modification of the MGB suspension bar, inspection of the torque, and corrective actions. This AD also allows credit for the initial service life calculations if certain requirements are met and prohibits installing a certain bolt after the modification is accomplished on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-22218
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- December 8, 2025
- Takes effect
- January 12, 2026
- Dates
- This AD is effective January 12, 2026.
- Docket
- Docket No. FAA-2025-1736; Project Identifier MCAI-2024-00435-R; Amendment 39-23190; AD 2025-23-07
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 5
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in December 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.