AD 2024-05478
Published 2024-03-15 · 2 models · 27 US-registered tails affected · Federal Register
Airworthiness Directives; Leonardo S.p.a. Helicopters Federal Register ↗
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by reports of cracks in the lateral mounts of the main transmission support case. This AD requires repetitive visual inspections and fluorescent penetrant inspections (FPI) and, depending on the results, corrective action, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Applicability · by US fleet size
Federal Register text
Verbatim; the Federal Register publication is the legally binding document. Cite: 89 FR 18774. View on Federal Register ↗
[Federal Register Volume 89, Number 52 (Friday, March 15, 2024)] [Rules and Regulations] [Pages 18774-18776] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2024-05478]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-2231; Project Identifier MCAI-2022-01623-R; Amendment 39-22684; AD 2024-04-05] RIN 2120-AA64
Airworthiness Directives; Leonardo S.p.a. Helicopters
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by reports of cracks in the lateral mounts of the main transmission support case. This AD requires repetitive visual inspections and fluorescent penetrant inspections (FPI) and, depending on the results, corrective action, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective April 19, 2024. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of April 19, 2024.