Summary
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to certain Boeing Model 757-200 series airplanes, that currently requires modification of the number 3 left and right emergency exit doors. This action would require a new, improved modification of the number 3 left and right emergency exit doors, which would terminate the requirements in the existing AD. The actions specified by the proposed AD are intended to prevent the number 3 emergency exit doors from jamming, which could impede the safe evacuation of passengers and crew during an emergency. This action is intended to address the identified unsafe condition.