As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE OIL QTY SIGHT GAUGE SHOWS NO OIL YET ENGINE WAS SERVICED TO FULL DURING RON. PERFORMED NR 2 ENGINE IDLE RUN FOR 12 MIN. OIL QTY RETURNED TO FULL THEN DECREASED AGAIN. REF MM 71 00 00 201. REPLACED OIL ANTI LEAK VALVE PER MM 79 21 09 401. ALL TESTS GOOD.