Eurocopter Deutschland GmbH Proposes New Airworthiness Directive for MBB-BK 117 Series Helicopters

Summary

Eurocopter Deutschland GmbH is proposing a new airworthiness directive to inspect Eurocopter Deutschland GmbH Model MBB-BK 117 series helicopters for bulging on the main rotor blade upper and lower surface, following two incidents where a balance weight detached and migrated towards the tip of the blade, prompting the need to detect movement and prevent severe vibrations and precautionary landings.