Airworthiness directives › 2021-24-11
AD 2021-24-11 Airworthiness Directives; Leonardo S.p.a. Helicopters
Models named: 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 A109E, A109S, and AW109SP helicopters, certificated in any category, with an affected assembly as identified in European Union Aviation Safety Agency (EASA) AD 2019-0182, dated July 26, 2019 (EASA AD 2019-0182) installed.
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, EASA AD 2019-0182.
Unsafe condition
This AD was prompted by reports of main landing gear (MLG) wheel assembly failure. The FAA is issuing this AD to address stress corrosion and hydrogen embrittlement on the threaded end of the MLG strut in the MLG wheel assembly. This condition, if not addressed, could lead to cracks on the affected MLG assembly, resulting in damage or failure of the MLG and consequent damage to the helicopter and injury to occupants.
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