As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, ENGINE SURGED, FLAMED OUT AND RESTARTED ON ITS OWN. TORQUE WENT FROM 1600 FT/LBS DOWN TO APPROXIMATELY 800 FT/LBS, AND JUMPED BACK UP TO 1600 FT/LBS. PILOT RETURNED TO BASE. NO TROUBLESHOOTING WAS BEEN PERFORMED AT TIME OF SUBMISSION.