Airworthiness directives › 2024-04-05
AD 2024-04-05 Airworthiness Directives; Leonardo S.p.a. Helicopters
Models named: AB412, AB412 EP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Leonardo S.p.a. Model AB412 and AB412 EP helicopters, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2022-0258, dated December 20, 2022 (EASA AD 2022-0258).
Unsafe condition
This AD was prompted by reports of cracks in the lateral mounts of the main transmission support case. The FAA is issuing this AD to detect and address cracking of the main transmission support case. The unsafe condition, if not addressed, could result in the loss of load carrying capabilities of the main transmission and subsequent loss of control of the helicopter.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1