As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT NR 2 PROPELLER EXPERIENCED UNCOMMANDED FEATHER. THE CREW SHUTDOWN THE ENGINE AND DECLARED AN EMERGENCY. NR 2 MULTI-FUNCTION COMPUTER AND AUTOFEATHER UNIT WERE REPLACED AND SENT TO ATR MFG FOR ANALYSIS. ENGINE TORQUE SENSORS ALSO REPLACED. GROUND RUNS HAVE BEEN COMPLETED SATISFACTORY.