AD 2026-10-20
Effective 07/09/2026 · Published 06/04/2026
Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Summary
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-3 helicopters. This AD was prompted by a report of excessive vibrations in-flight due to an incorrect installation of the angular ball bearing of the control ring assembly. This AD requires a one-time inspection of the affected swashplates and, depending on the results of the inspection, correc…