As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HALF CIRCLE CRACKED AT NR 6 CYLINDER PAD. CRACK RUNS FROM UPPER PART OF CRANKCASE FROM CYLINDER BASE STUD AT 2 OCLOCK POSITION TO CYLINDER BASE STUD AT 10 OCLOCK POSITION. WITH SEVERAL CRACK RADIATING FROM THE HALF CIRCLE CAUSING A SMALL TRIANGULAR PIECE TO FALL OUT. THERE WAS NO OTHER DAMAGE TO ENGINE. CRANKCASE WILL NOT BE REPAIRABLE.