As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REDUCED POWER FOR LANDING, PUSHED NOSE OF AC OVER TO DESCEND, LF ENGINE RPM INCREASED. PULL NOSE OF AC UP, RPM DECREASED. THEN PILOT REPORTED SLIGHT VIBRATION AND THE BANG. LT ENGINE WAS SHUTDOWN. AIRCRAFT LANDED WITHOUT INCIDENT. INSPECTION OF LT ENGINE WAS PERFORMED AND FOUND THAT THE FRONT 2 CYLINDERS WERE THE ONLY ONES STILL ATTACHED TO THE FRONT THIRD OF THE CRANKSHAFT (THE CRANKSHAFT WAS IN (3) PIECES). (K)