As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON LEVELING OFF FROM DESCENT, THE PROPELLER WENT TO AN OVERSPEED CONDITION AND THE ENGINE WAS FOUND NOT TO RESPOND TO THROTTLE INPUT. THE ENGINE WAS SHUTDOWN IN FLIGHT. THE MFG PROPELLER ELECTRIC CONTROL, SPEED SENSOR AND ASSOCIATED ENGINE HARNESS WERE SUBSEQUENTLY REPLACED. MFG WILL MONITOR INVESTIGATION OF THESE COMPONENTS AND ADVISE OF ROOT CAUSE ONCE ESTABLISHED. (TC NR 20070914017)