Summary
This document proposes to adopt a new airworthiness directive (AD) that would apply to certain British Aerospace (BAe) Model HP.137 Jetstream Mk.1, Jetstream Model 3101, Jetstream Model 3201, and Jetstream 200 series airplanes. The proposed AD would require replacing the windshield wiper arm attachment bolts and windshield wiper arm on all of the affected airplanes, and measuring the material thickness of the upper and lower toggle attachment brackets on the nose landing gear of the affected airplanes, and replacing the toggle attachment bracket lugs if necessary. The proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified by the proposed AD are intended to prevent the windshield wiper arm from corroding, detaching from the airplane during flight, and penetrating the fuselage, which, if not corrected, could result in possible injury to the pilot and passengers; and to prevent collapse of the nose landing gear caused by design deficiency, which, if not corrected, could result in loss of control of the airplane during landing operations.