Airworthiness Directive · Amendment 39-9352 · Textron Aviation Inc. Airplanes
Textron Aviation Inc. Airplanes
This AD applies to Textron Aviation Inc. 400, 400A.
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), applicable to certain Beech Model 400 and 400A airplanes, that requires modification of the autopilot and rudder boost interlock. This amendment is prompted by a report indicating that the rudder boost system installed on these airplanes does not operate correctly during deployment of a thrust reverser. The actions specified by this AD are intended to prevent incorrect operation of the rudder boost system during deployment of a thrust reverser and to prevent the autopilot from exceeding certain bank angle limits; these conditions could result in reduced controllability of the airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
