What was found
ON APPROACH FOR LANDING ON FLIGHT 2505, ROLL CONTROL REMAINS STUCK IN THE NEUTRAL POSITION FOR SEVERAL SECONDS AFTER THE AUTOPILOT IS DISENGAGED; AFTER SEVERAL SECONDS, HOWEVER, THE ROLL CONTROL WORKS NORMALLY. FOUND AP AILERON SERVICE MOUNT/CLUTCH BINDING. REPLACED MOUNT/CLUTCH AND SERVO PER CRJ700 (TR 22-0021/22) 22-11-11-000-801-A01, 22-11-11-400-801-A01, 22-11-21-000-801-A01, 22-11-21-400-801-A01. ALL CLOSEOUT TESTS CHECK GOOD. PERFORMED VISUAL INSPECTION OF AILERON CABLE CIRCUIT ACCESSABLE IN FIELD ENVIRONMENT FOR INTERFERENCE, BINDING, ROUGH BEARINGS. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.