Airworthiness directives › 2023-03-03
AD 2023-03-03 Airworthiness Directives; Leonardo S.p.a. Helicopters
Models named: AB139, AW139. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Leonardo S.p.a. Model AB139 and AW139 helicopters, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) Emergency AD 2022-0182-E, dated August 30, 2022 (EASA AD 2022-0182-E).
Unsafe condition
This AD was prompted by a report of a damaged tail rotor duplex bearing (TRDB) that was improperly installed on a sliding control assembly. The FAA is issuing this AD to ensure the proper installation of a TRDB and prevent a TRDB from remaining in service beyond its life limit. The unsafe condition, if not detected and corrected, could lead to structural failure of the TRDB, possibly resulting in 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