As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UNCOMMANDED AUTOFEATHER DURING TAKEOFF ROLL, WAS REPORTED BY THE FLIGHT CREW. ENGINE WAS NEVER SECURED THEREFORE REACHED MAXIMUM TORQUE VALUE FOR ABOUT 6 MINUTES. AN UNEVENTFUL LANDING WAS CONDUCTED WITH 1 ENGINE IN FEATHER CONDITION. POST LANDING INSPECTION REVEALED A BETA VALVE PROBLEM. ENGINE MFG RECOMMENDED ENGINE REMOVAL FOR LIGHT OVERHAUL.