Airworthiness Directive · Amendment 39-19650 · Rotorcraft flight control
Airbus Helicopters Deutschland GmbH Helicopters
This AD applies to Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters, certificated in any category, with a cable cut flip guard (flip guard) part number (P/N) 79552176 installed.
We are adopting a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 D-2 helicopters. This AD requires replacing the rescue hoist cable cut pushbutton flip guard (flip guard). This AD was prompted by reports of unintended lifting of several flip guards. We are issuing this AD to address the unsafe condition on these products.
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
Before the next hoist operation or within 440 hours time in service, whichever occurs first, remove flip guard P/N 79552176 from service and install flip guard P/N 79553511 on the collective lever switch unit.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
