As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE ENGINE SUDDENTLY STOP DURING ENGINE GROUND RUN AT HIGH POWER. AFTER INVESTIGATION FOUND THE ENGINE VERY STIFF TO TURN BY HAND. VISUAL INSPECTION OF ENGINE & OIL FILTER CARRIED OUT NO DEFECT FOUND. ENGINE WILL BE REMOVED AND SEND TO O/H SHOP FOR INVESTIGATION/REPAIR.