What was found
IN CRUISE WITH AUTOPILOT 2 ENGAGED, AIRCRAFT EXPERIENCED AN UNCOMMANDED PITCH UP AND A SUBSEQUENT ELEVATOR AND AILERON COMPUTER 2 PITCH FAULT DISPLAY ON UPPER ELECTRONIC CENTRALIZED AIRCRAFT MONITORING UNIT. AUTOPILOT 1 OPERATES NORMALLY. FLIGHT DIVERTED TO PIT. THE ACTUATOR POSITION TRANSDUCER WAS FAULTY (FAULT WAS ELAC 2 THS 9CE). TRANSDUCER IS NON-STOCK. THE THS ELECTRONIC MODULE AND TRANSDUCER WERE REPLACED. THE AIRCRAFT HAD NO FURTHER PROBLEMS.