Airworthiness directives › 2021-11-05
AD 2021-11-05 Airworthiness Directives; Airbus Helicopters
Models named: EC225LP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Airbus Helicopters Model EC225LP 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 AD 2016-0232R1, dated December 12, 2019 (EASA AD 2016-0232R1).
Unsafe condition
This AD was prompted by reports of oil leaks during engine starting, originating from the main gearbox (MGB). The FAA is issuing this AD to address the inadvertent opening of the P 2.4 valve of the MGB emergency lubrication (EMLUB) system, which results from MGB pressurization by compressed air produced by the engine during starting in response to a signal from the EMLUB electronic control card. This condition could result in loss of the MGB lubrication system and a reduced ability of the crew to manage adverse operating conditions.
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