As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) OIL LEAK REPORTED BY PILOT. INSPECTION FOUND THE FRONT CRANKSHAFT SEAL LEAKING. IT HAD SLIPPED OUT APPROXIMATELY .0625 INCH AND WAS LOOSE. THE POSSIBLE CAUSE WAS A COLD START AND THE ENGINE RPM TOO HIGH DURING ENGINE WARM UP CAUSING HIGH OIL PRESSURE. NEW SEAL INSTALLED.