Data / Federal rules / 2026-04966
Airworthiness Directives; Various Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on March 13, 2026. Comments closed on April 27, 2026.
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What the agency says
The FAA proposes to adopt a new airworthiness directive (AD) for various helicopters. This proposed AD was prompted by a report of a loss of tail rotor authority due to auxiliary system fluid loss caused by a yaw pedal damper housing fatigue fracture and attachment bolt fatigue fracture. This proposed AD would require performing repetitive visual inspections of the auxiliary servo assembly, a fluorescent penetrant inspection (FPI) of the yaw pedal damper housing and, if necessary, corrective actions. This proposed AD would also require determining and recording the remaining life of a certain part and revising the existing rotorcraft flight manual (RFM) to provide the flight crew with procedures to follow under certain conditions. This proposed AD would also require revising the airworthiness limitations section (ALS) of the existing maintenance manual (MM) or instructions for continued airworthiness (ICAs) and the existing approved maintenance or inspection program, as applicable by incorporating a new service life limit for a certain part. This proposed AD would also require re-identifying the serial number of a certain part. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-04966
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- March 13, 2026
- Comments due
- April 27, 2026
- Dates
- The FAA must receive comments on this proposed AD by April 27, 2026.
- Docket
- Docket No. FAA-2026-2297; Project Identifier AD-2025-00184-R
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 5
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in March 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.