Airworthiness Directive · Amendment 39-9100 · BAE Systems (Operations) Limited Airplanes
BAE Systems (Operations) Limited Airplanes
This AD applies to BAE Systems (Operations) Limited Jetstream Model 4101.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Jetstream Model 4101 airplanes, that currently requires inspections to detect damage of the ball bearings in the aileron quadrants, replacement of damaged ball bearings with new ball bearings, and adjustment to the secondary stops. This amendment requires installation of new swivel bearings in the aileron quadrants, which, when accomplished, will terminate the inspection requirement. This amendment is prompted by the development of a modification that eliminates the need to inspect repetitively. The actions specified by this AD are intended to prevent failure of the bearings in the aileron quadrants, which could result in reduced controllability of the airplane.
