As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) REPORTED THAT DURING A TRAINING FLIGHT, ENGINE NR 1 OVERTEMPED WHEN GOVERNOR WAS SWITCHED FROM AUTO TO MAN WITH N1 AT 70 PERCENT. GROUND INSPECTION PERFORMED AND DEBRIS FOUND AT ENGINE NR 1 EXHAUST AREA WITH DENTS NOTED IN THE EXHAUST DUCTS, FIELD SERVICE REPRESENTATIVE TROUBLESHOOTING WITH CUSTOMER.