As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THAT HE HAD SOME OIL ON RT PART OF WINDSHIELD. DISCOVERED THAT THE OIL COOLER ADAPTER GASKET ON RT FWD OF ENGINE HAD A HAIR LINE OPENING OR SPLIT THAT ALLOWED SMALL AMOUNT OF OIL COLLECT ON WINDSHIELD. OIL LOSS WAS ONLY A COUPLE OUNCES. GASKET REPLACED WITH NEW AND GROUND RUN AND LEAK CHECK PERFORMED, SATISFACTORY.