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Airworthiness Directive 2020-17-05

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Official AD 2020-17-05 · FR doc 2020-17682 · 2020-08-13 · airframe

Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters. This AD was prompted by the discovery that certain longitudinal trim actuators, lateral trim actuators, and yaw trim actuators, which are certified for installation on MBB-BK 117 C-2 helicopters, were erroneously listed as eligible for installation on MBB-BK 117 D-2 helicopters. This AD requires removing the affected parts from service and prohibits installing the affected parts on MBB- BK 117 D-2 helicopters. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2020-17-05 applies to

MakesAirbus Helicopters Deutschland Gmbh
ModelsMBB-BK 117 D-2, MBB-BK 117
Serial-conditional — narrows to serials ?–20126.
Part-conditional — 418-00878-001, 418-00878-051, 418-00879-001.

Applies only if any of the following is installed: (1) longitudinal trim actuator P/N 418-00878-001, (2) lateral trim actuator P/N 418-00878-051, or (3) yaw trim actuator P/N 418-00879-001. Excludes serial numbers 20109, 20119, and 20124.

Whether AD 2020-17-05 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2020-17-05 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.