As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER THREE CYLINDER CONNECTING ROD AND CAP FAILED AT CRANKSHAFT. THE CONNECTING ROD THEN FELL DOWN TO THE BOTTOM OF THE CYLINDER BORE AND WAS STRUCK REPEATEDLY BY THE CRANKSHAFT UNTIL ENGINE WAS SHUTDOWN. THE FAILURE OCCURRED AFTER FINAL POWER REDUCTION DURING A ROUTINE LANDING. THE PILOT DESCRIBED HEARING A LOUD BANG FOLLOWED BY A LOSS OF POWER. CAUSE OF FAILURE UNDETERMINABLE.