Summary
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to certain Jetstream Model ATP airplanes, that currently requires daily and/or pre- [[Page 30799]] flight cleaning and inspections to detect damaged main landing gear (MLG) wheel bearings and replacement of discrepant parts. That AD was prompted by reports of failure of the MLG wheel bearings. The actions specified by that AD are intended to prevent failure of the MLG wheel bearing, which could result in detachment of a MLG wheel from the airplane. This action would require an additional inspection, in lieu of the pre-flight inspection, for certain airplanes. This action would also require the accomplishment of a terminating modification that would eliminate the need for daily and pre-flight inspections.