Airworthiness directives › 2022-02-17
AD 2022-02-17 Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
Models named: MBB-BK 117 C-2, MBB-BK 117 D-2, MBB-BK 117 D-3. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 C-2, MBB-BK 117 D-2, and MBB-BK 117 D-3 helicopters, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) Emergency AD 2021-0289-E, dated December 23, 2021 (EASA AD 2021-0289-E).
Unsafe condition
This AD was prompted by reports of engine flame out following prolonged operations in falling snow with the inlet barrier filter (IBF) system installed. The FAA is issuing this AD to prevent partial icing of an IBF engine intake and engine flame out. The unsafe condition, if not addressed, could result in engine failure and reduced control of the helicopter, possibly resulting in damage to the helicopter or 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