Airworthiness directives › 2024-25-51
AD 2024-25-51 Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Models named: MBB-BK 117 C-2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 helicopters, certificated in any category. Note 1 to paragraph (c): Helicopters with an MBB-BK 117 C-2e designation are Model MBB-BK 117 C-2 helicopters.
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 Emergency AD 2024-0237-E, dated December 9, 2024 (EASA Emergency AD 2024-0237-E).
Unsafe condition
This AD was prompted by a report of vibrations of the yaw axis during a hover taxi. The FAA is issuing this AD to detect a worn tail rotor actuator bolt. The unsafe condition, if not addressed, could result in failure of a tail rotor actuator bolt, loss of tail rotor control, and subsequent loss of control of the helicopter.
Affected ADs
None.
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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