Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Jetstream Model ATP airplanes. This proposal would require an inspection to ensure that various components of the retraction actuator of the nose landing gear (NLG) are secure, and an inspection of the bearing cap mounting holes for correct hole and thread length. The proposed AD would also require a later inspection for certain discrepancies of the retraction actuator; installation of revised tolerance bushings; and correction of any discrepancy found. This proposal is prompted by reports of failure of the attachment bolts of the bearing cap of the retraction actuator of the NLG. The actions specified by the proposed AD are intended to prevent the inability to raise or lower the NLG, or possible collapse of the NLG, due to failure of the attachment bolts of the bearing cap.