Airworthiness directives › 2021-17-18
AD 2021-17-18 Airworthiness Directives; Leonardo S.p.a. Helicopters
Models named: A109C, A109K2, A109E, A109S, AW109SP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Leonardo S.p.a. Model A109C, A109K2, A109E, A109S, and AW109SP helicopters, certificated in any category, all serial numbers.
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 2021-0144, dated June 17, 2021 (EASA AD 2021-0144).
Unsafe condition
This AD was prompted by a report of a crack on the tail rotor (TR) mast. The FAA is issuing this AD to address cracking on the TR mast, which could lead to failure of the TR mast, with consequent loss of control of the helicopter.
Affected ADs
None.
Read the original on the Federal Register →
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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