What was found
(CAN) A MAINTENANCE CHECK OF THE AILERON DISCONNECT SYSTEM REVEALED THAT THE AUTOPILOT ROLL SERVO CLUTCH WAS PERMANENTLY ENGAGED. THE ROLL ACTUATOR WAS REPLACED AND AILERON CONTROL CABLES WERE RIGGED BETWEEN AILERON SPLITTER QUADRANT AND AILERON TERMINAL QUADRANT. THE ROLL ACTUATOR HAD BEEN INSTALLED FOR 956H/888C AND 135 DAYS. THE AILERON SYSTEM WAS TESTED SERVICEABLE AND THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE.