As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AT TOP OF CLIMB, ENGINE TORQUE REDUCED UNCOMMANDED ACCOMPANIED BY A POWER TURBINE OVER-SPEED CONDITION. THE ENGINE WAS SHUTDOWN IN FLIGHT. MFG WILL MONITOR INVESTIGATION OF THE EVENT AND ADVISE OF ROOT CAUSE ONCE ESTABLISHED. (TC NR 20070514061)