As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLUID WAS OBSERVED ON NR 2 ENGINE. THE FLUID APPEARED TO BE OIL AND WAS CONFIRMED BY QUANTITY DROP OF OIL FROM NR 2 ENGINE OIL INDICATOR. THE SOURCE OF THE OIL LEAK WAS A WORN O-RING AT THE OIL FILLER CAP. THE O-RING WAS REPLACED. OPS CHECK GOOD.