Data / Federal rules / 2024-09573
Airworthiness Directives; Bell Textron Inc., Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on May 8, 2024. Comments closed on June 24, 2024.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Inc., Model 212, 412, 412CF, and 412EP helicopters. This proposed AD was prompted by reports of cracked tail boom attachment barrel nuts (barrel nuts). This proposed AD would require replacing all steel alloy barrel nuts with nickel alloy barrel nuts and, replacing or inspecting other tail boom attachment point hardware and depending on the results, replacing hardware, stabilizing torque, and applying torque stripes. This proposed AD would also require repetitively inspecting torque and, depending on the results, corrective action. This proposed AD would require repetitively replacing the upper left-hand (LH) tail boom attachment bolt (bolt) and repetitively inspecting the other tail boom attachment point bolts. Lastly, this proposed AD would prohibit installing steel alloy barrel nuts. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2024-09573
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- May 8, 2024
- Comments due
- June 24, 2024
- Dates
- The FAA must receive comments on this proposed AD by June 24, 2024.
- Docket
- Docket No. FAA-2024-0768; Project Identifier AD-2022-00504-R
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 6
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in May 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.