As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT HAD LOSS OF OIL PRESSURE ON LT ENGINE AND SHUT ENGINE DOWN AND LANDED AS SOON AS PRACTICAL. A CRACK WAS FOUND ON THE CRANKCASE AT THE TOP FWD STUD HOLE OF THE NR 2 CYLINDER BASE STUD LEADING TO AN OIL GALLEY. NEARLY ALL THE OIL HAD LEAKED OUT.