As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A CRACK WAS DISCOVERED IN THE CRANKCASE AT THE LOWER FORWARD CYLINDER BASE STUD OF THE NR 2 CYLINDER OF APPROXIMATELY 1.5 INCHES. STARTS FROM THE BOTTOM OF STUD AREA AND TRAVELS DOWN AND AFT. A SLIGHT AMOUNT OF OIL LEAKING FROM AROUND THE BASE OF CYLINDER AT THIS AREA.