Airworthiness directives › 2020-17-05
AD 2020-17-05 Airworthiness Directives; Airbus Helicopters Deutschland GmbH 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 Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters, certificated in any category, with a serial number up to 20126 inclusive, excluding serial numbers 20109, 20119, and 20124, and with any of the following installed: (1) Longitudinal trim actuator part number (P/N) 418-00878-001, (2) Lateral trim actuator P/N 418-00878-051, or (3) Yaw trim actuator P/N 418-00879-001.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Within 300 hours time-in-service, remove from service any longitudinal trim actuator P/N 418-00878-001, lateral trim actuator P/N 418-00878-051, and yaw trim actuator P/N 418-00879-001. (2) After the effective date of this AD, do not install longitudinal trim actuator P/N 418-00878-001, lateral trim actuator P/N 418-00878-051, or yaw trim actuator P/N 418-00879-001 on any Model MBB-BK 117 D-2 helicopter.
Unsafe condition
This AD was prompted by the discovery that certain longitudinal trim actuators, lateral trim actuators, and yaw trim actuators were erroneously listed as eligible for installation on Model MBB-BK 117 D-2 helicopters. The FAA is issuing this AD to address this condition, which could lead to reduced 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