Data / Federal rules / 2024-23547
Airworthiness Directives; Columbia Helicopters, Inc., and Restricted Category Model CH-47D Helicopters
The Federal Aviation Administration published this final rule in the Federal Register on October 11, 2024. It took effect on October 28, 2024. Comments closed on November 25, 2024.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for Columbia Helicopters, Inc., Model 234 helicopters and restricted category Model CH-47D helicopters. This AD was prompted by two reports of a flight control rigid connecting link (link) failure, due to a manufacturing defect. This AD requires removing certain links from service and prohibits installing those links. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2024-23547
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- October 11, 2024
- Takes effect
- October 28, 2024
- Comments due
- November 25, 2024
- Dates
- This AD is effective October 28, 2024.
- Docket
- Docket No. FAA-2024-2329; Project Identifier AD-2024-00451-R; Amendment 39-22864; AD 2024-20-05
- 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 October 2024
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.