Airworthiness Directives; Eurocopter France (ECF) Model EC225LP Helicopters

摘要

We are adopting a new airworthiness directive (AD) for the specified ECF Model EC225LP helicopters. This AD results from a mandatory continuing airworthiness information (MCAI) AD issued by the aviation authority of the European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community. The MCAI AD states there have been a "few" reports of cracks and failure of the main rotor hub (MRH) cone restrainer support lugs at their attachment points on the reinforcement ring where the dome fairing is secured. Also, cracks on the dome fairing support have been reported. Failure of the cone restrainer support or the dome fairing support attachment lugs may lead to loss of the dome fairing, damage to the rotor blades, and subsequent loss of control of the helicopter.