As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING UNRELATED MAINTENANCE, AN OIL LEAK WAS DISCOVERED FROM THE LEFT ENGINE. MAINTENANCE IDENTIFIED THE ENGINE OIL SCAVENGE PUMP AS HAVING A PINHOLE LEAK AND THE PUMP HOUSING WAS REPLACED. INSPECTION DETERMINED THAT CAVITATION EROSION OF THE PUMP BODY IN A CORNER OF THE CAVITY HAD CREATED A HOLE. THIS IS A FREQUENT ON THESE PUMP HOUSINGS. POST REPLACEMENT OF PUMP HOUSING LEAK CHECK WAS GOOD.