What was found
PILOT NOTICED LEFT ENGINE COWLING BECOMING COVERED WITH OIL. ENGINE WAS UNCOWLED FOR INVESTIGATION AND FOUND NR 2 CYLINDER HEAD CRACKED COMPLETELY OFF THE CYLINDER BARREL. THE ONLY THING HOLDING THE CYLINDER HEAD IN PLACE WAS THE EXHAUST, INDUCTION TUBE, AND ENGINE BAFFLING. TOTAL TIME ON CYLINDER UNKNOWN. TIME ON CYLINDER SMOH, 1,905 HOURS. CAUSE UNKNOWN.