As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE NR2 ENGINE OIL PAN WAS REMOVED TO FACILITATE THE REPAIR OF AN OIL LEAK. INSPECTION OF THE NOW EXPOSED AREA FOUND THE NR5 CYLINDER EXHAUST VALVE CAM LOBE BADLY WORN. THE ENGINE WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.