What was found
(CAN) DURING CRUISE, THE ENGINE HAD AN UNCOMMANDED POWER CHANGE ACCOMPANIED WITH ACFT YAW. THE ENGINE WAS SHUTDOWN AND THE CREW ATTEMPTED A RESTART BUT THE ENGINE REMAINED AT IDLE, AND AS SUCH IT WAS SHUTDOWN AGAIN. AN UNEVENTFUL SINGLE ENGINE FOLLOWED. POST FLIGHT TROUBLESHOOTING FOUND A FAULTY TORQUE PROBE WHICH WAS REPLACED BEFORE THE ACFT WAS RETURNED TO SERVICE. MFG RECOMMENDS THE SDR BE CLOSED ON THE BASIS OF THE FOLLOWING INFORMATION.