As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A TRAINING FLIGHT, IN CRUISE CONDITION, THE CREW EXPERIENCED AN UNCOMMAND POWER INCREASE. THEY WERE UNABLE TO REDUCE THE ENGINE POWER. ENGINE WAS SHUTDOWN BY THE CREW. THEY LANDED UNEVENTFULLY TO THE DESTINATION AIRPORT. TROUBLESHOOTING IS IN PROGRESS.