Airworthiness directives › 2021-12-08
AD 2021-12-08 Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
Models named: MBB-BK 117 D-2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-2 helicopters, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done. ((g) Requirements 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 2019-0305, dated December 17, 2019 (EASA AD 2019-0305).
Unsafe condition
This AD was prompted by reports of chafing marks found on the wiring harness behind the middle side panels, in the area of the front passenger panels. Further investigations identified low clearance between the harness and the surrounding structure. Airbus Helicopters identified the cause of the chafing marks as contact of the harness with the front passenger panel screws. The FAA is issuing this AD to prevent electrical failure of the helicopter wiring harness.
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