Summary
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to certain Boeing Model 757 series airplanes, that currently requires various modifications and terminating actions for the passenger door, and repair, if necessary. This action would require additional inspections, and replacement of certain parts, if necessary. This proposal is prompted by reports of excessive gaps between lockout cams and crank stops, which resulted in broken power assist triggers. The actions specified by this proposed AD are intended to prevent broken power assist triggers, which could result in an inoperative door opening system during an emergency evacuation.