Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) (Airbus Helicopters)
We are adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS332L1 helicopters. This AD requires replacing the rivets on the left-hand (LH) and right-hand (RH) Y350 longitudinal beams (longitudinal beams Y350). This AD was prompted by a report that non-conforming rivets had been installed on an AS332 helicopter during a production modification. The actions of this AD are intended to prevent failure of the longitudinal beams Y350 and subsequent loss of control of the helicopter.