Data / Federal rules / 2025-16211
Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
The Federal Aviation Administration published this final rule in the Federal Register on August 25, 2025. It took effect on September 29, 2025.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This AD was prompted by reports that the interface pin of the secondary load path in the upper gimbal of the horizontal stabilizer trim actuator (HSTA) was incorrectly installed. This AD requires a detailed visual inspection of the interface pin of the HSTA to determine if the interface pin is incorrectly installed, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-16211
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- August 25, 2025
- Takes effect
- September 29, 2025
- Dates
- This AD is effective September 29, 2025.
- Docket
- Docket No. FAA-2025-0911; Project Identifier MCAI-2025-00119-T; Amendment 39-23111; AD 2025-17-01
- 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 August 2025
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.