Data / Federal rules / 2026-18522
Airworthiness Directives; Bell Textron Canada Limited Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on September 10, 2026. Comments are due by October 26, 2026.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for all Bell Textron Canada Limited (Bell) Model 206L, 206L-1, 206L-3, and 206L-4 helicopters with FAA Supplemental Type Certificate (STC) SR02684LA installed. This proposed AD was prompted by an event where a Bell Model 206L helicopter with FAA STC SR02684LA installed experienced moderate to severe vertical vibration, which resulted in damage to the tail boom of the helicopter. This proposed AD would require revising the Limitations section of the existing rotorcraft flight manual (RFM) for the helicopter to include a never-exceed-speed (V<INF>NE</INF>) limitation and would require incorporating a rotorcraft flight manual supplement (RFMS) into the existing RFM. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-18522
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- September 10, 2026
- Comments due
- October 26, 2026
- Dates
- The FAA must receive comments on this proposed AD by October 26, 2026.
- Docket
- Docket No. FAA-2026-8796; Project Identifier AD-2026-00018-R
- 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 September 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.