Airworthiness Directives; Boeing Model 767 Series Airplanes Equipped With Off-Wing Escape Slides

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 767 series airplanes, that requires replacement of the currently installed door opening actuators of the emergency off-wing escape system with new, improved actuators. This amendment is prompted by reports indicating that the requirements of a previously issued AD do not adequately preclude leakage from these actuators. The actions specified by this AD are intended to prevent failure of the escape slide to deploy due to failure of the door opening/snubbing actuator, which could delay and possibly jeopardize successful emergency evacuation of an airplane.