Transport i lotnictwo · 31.07.1998

Airworthiness Directives; British Aerospace (Jetstream) Model 4101 Airplanes

This document proposes the supersedure of an existing airworthiness directive (AD), applicable to all British Aerospace (Jetstream) Model 4101 airplanes, that currently requires repetitive functional testing of the main entrance door, cleaning and lubricating of the ``speed'' lock and ``G'' lock systems, and repair, if necessary. This action would add a requirement for replacement of the ``G'' lock rollers with new, improved ``G'' lock rollers. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed AD are intended to prevent inability of the main entrance door to open, which could delay or impede passengers exiting the airplane, or rescue personnel from entering the airplane during an emergency.