Eurocopter Deutschland GmbH Model EC135 P1 and T1 Helicopters: Airworthiness Directive Amendment

Summary

The Federal Register has published an amendment to Airworthiness Directive 99-22-01, which requires U.S. owners and operators of Eurocopter Deutschland GmbH Model EC135 P1 and T1 helicopters to inspect and replace the tail boom connecting frame flange, install an additional bearing support, and visually inspect the frame flange for cracks or misalignment, in order to prevent a fracture of the bearing frame flange, failure of the tail rotor drive shaft, and loss of control of the helicopter.