Data / Federal rules / 2026-12048
Airworthiness Directives; Airbus Helicopters
The Federal Aviation Administration published this final rule in the Federal Register on June 16, 2026. It took effect on July 21, 2026.
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What the agency says
The FAA is superseding Airworthiness Directive (AD) 2023-01-04 for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2023-01-04 required, for helicopters with certain part- numbered tail rotor head (TRH) spider pitch change units installed, inspecting the pitch change spider nut (nut) for correct installation; marking a 2 to 5 mm wide black paint index mark and repetitively inspecting the alignment of the marking; and performing additional inspections and corrective actions if necessary. Since the FAA issued AD 2023-01-04, new or more restrictive airworthiness limitations were issued, which terminated the requirement for the repetitive inspections of the black paint index marking. This AD requires the same actions as AD 2023-01-04, except for the repetitive black paint index marking inspections and prohibits installing certain parts unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-12048
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- June 16, 2026
- Takes effect
- July 21, 2026
- Dates
- This AD is effective July 21, 2026.
- Docket
- Docket No. FAA-2025-5387; Project Identifier MCAI-2024-00399-R; Amendment 39-23337; AD 2026-09-15
- 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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| Airworthiness Directives; Airbus Helicopters 2026-21387 | Proposed rule | Oct 19 |
Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in June 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.