As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE, THE ENGINE EXPERIENCED AN UNCOMMANDED POWER REDUCTION ACCOMPANIED BY A (FADEC FAILED) ANNUNCIATION. THE PILOT ASSUMED MANUAL CONTROL OF THE ENGINE, ABORTED THE FLIGHT AND DIVERTED TO POINT OF DEPARTURE. SUBSEQUENT INVESTIGATION REVEALED AN UNSERVICEABLE ENGINE FUEL MANAGEMENT MODULE.