As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLT, ENG BEGAN TO VIBRATE SEVERELY AND PILOT SHUTDOWN. TEARDOWN AND INVESTIGATION REVEALED THE NR 2 ROD BROKE 1/2 WAY BETWEEN PISTON AND CRANK. IT IS SUSPECTED THIS ENG ENCOUNTERED LIQUID LOCK AT SOME TIME CAUSING A BENT ROD THAT EVENTUALLY FAILED.