Airworthiness Directive · Amendment 39-9400 · BAE Systems (Operations) Limited Airplanes
BAE Systems (Operations) Limited Airplanes
This AD applies to BAE Systems (Operations) Limited Avro 146-RJ100A, Avro 146-RJ70A, Avro 146-RJ85A, BAe 146-100A, BAe 146-200A, BAe 146-300A.
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 adopts a new airworthiness directive (AD) that is applicable to all British Aerospace Model BAe 146 and Model Avro 146-RJ series airplanes. This action requires inspection(s) to detect damaged and missing surface protective finish, corrosion, and cracking on the servo tab brackets and the trim tab drive brackets of the aileron, and corrective actions, if necessary. This amendment is prompted by a report of corrosion on an aileron tab bracket between the two tab drive flanges in the area of the two attachment bolts, which resulted in cracking of the flanges at their base. The actions specified in this AD are intended to prevent the failure of the servo tab brackets and trim tab drive brackets of the aileron due to cracking associated with corrosion, which could result in reduced controllability of the airplane.
