As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, PILOT PERFORMING POST-FLIGHT CHECK NOTICED LARGE AMOUNT OF OIL ON GROUND. UPON FURTHER INSPECTION IT WAS DISCOVERED THAT A FASTENER, PN 9550158060 ON LT SIDE OF OIL COOLER DUCTING PANEL PN 0401272790 HAD COME LOOSE AND WORN A HOLE ON THE IB SIDE OF OIL SUPPLY LINE PN 0401274100. RECOMMEND DAILY INSPECTION OF FASTENER PN 9550158060. (K)