As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUTBOARD CREW REPORTS NR 4 ENGINE OIL INDICATION INDICATES LOW. MECH CONFIRMED OIL IS SERVICED TO FULL LEVEL. MAINTENANCE SERVICED OIL TO FULL LEVEL. INDICATION ON GROUND DOES NOT AGREE WITH FULL QTY IN TANK. NO OIL INDICATION FAULTS WERE REPORTED BY INBOARD CREW. REPLACED OIL QTY TRANSMITTER PER MM 79 31 01. OP CHECK AND LEAK CHECK PER MM. OPS OKAY.