Airworthiness Directives; Airbus Model A310 Series Airplanes

This amendment adopts a new airworthiness directive (AD), applicable to all Airbus Model A310 series airplanes, that requires inspections to detect loose self-locking nuts and damaged cotter pins on the actuating cylinder to drag strut attachment of the left- and right-hand main landing gear (MLG), and correction of discrepancies. This amendment also provides an optional terminating action for the repetitive inspections. This amendment is prompted by reports of loose nuts and sheared cotter pins found on in-service airplanes. The actions specified by this AD are intended to prevent an undampened free fall of the left- and right-hand MLG, which subsequently could lead to the inability to retract the MLG and damage to other airplane systems.