Data / Federal rules / 2026-01032
Airworthiness Directives; Bombardier, Inc., Airplanes
The Federal Aviation Administration published this final rule in the Federal Register on January 21, 2026. It took effect on February 25, 2026.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by a report that some parts of horizontal stabilizer trim actuators (HSTAs) that were meant to be replaced through a required overhaul were not replaced and were instead reinstalled on the HSTAs. This AD requires verification of the HSTA serial number, and, if applicable, replacement of the HSTA. This AD also prohibits the installation of affected parts under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-01032
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- January 21, 2026
- Takes effect
- February 25, 2026
- Dates
- This AD is effective February 25, 2026.
- Docket
- Docket No. FAA-2025-1351; Project Identifier MCAI-2024-00667-T; Amendment 39-23242; AD 2026-02-06
- 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 January 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.