Data / Federal rules / 2026-14108
Airworthiness Directives; Leonardo S.p.a Helicopters
The Federal Aviation Administration published this proposed rule in the Federal Register on July 14, 2026. Comments closed on August 28, 2026.
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What the agency says
The FAA proposes to supersede Airworthiness Directive (AD) 2021-12-10, which applies to certain Leonardo S.p.a. Model AB139 and AW139 helicopters. AD 2021-12-10 requires installing a placard on the primary stretcher unit. Since the FAA issued AD 2021-12-10, Aerolite (the manufacturer of the stretcher unit), developed a modification of the primary stretcher unit to improve its structural properties. This proposed AD would require the installation of a certain placard depending on the configuration of the primary stretcher unit. The proposed AD would also require revising the existing rotorcraft flight manual (RFM) for the helicopter. This proposed AD would also revise the applicability to only include Leonardo S.p.a. Model AB139 and AW139 helicopters, modified by FAA Supplemental Type Certificate (STC) SR04384NY. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-14108
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- July 14, 2026
- Comments due
- August 28, 2026
- Dates
- The FAA must receive comments on this NPRM by August 28, 2026.
- Docket
- Docket No. FAA-2026-7212; Project Identifier MCAI-2023-00628-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 July 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.