As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNCOMMANDED AUTOFEATHER, IFSD DURING CLIMB AFTER TAKE-OFF, AN OVERTORQUE OCCURRED ACCOMPANIED BY REDUCTION IN POWER TURBINE SPEED. THE ENGINE WAS SHUTDOWN AND AN UNEVENTFUL SINGLE ENGINE LANDING FOLLOWED. IT WAS DETERMINED THAT THE ENGINE LIKELY HAD AN UNCOMMANDED AUTOFEATHER EVENT. THE AUTOFEATHER UNIT WAS REPLACED AND WILL BE SENT TO ITS MFG FOR INVESTIGATION. THE ACFT WAS RETURNED TO SERVICE AFTER REPLACEMENT OF THE PROPELLER.