As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START ON THE NR 3 NOTICED THE LOW OIL QUANTITY INDICATION. RETURNED TO THE GATE. REPLACED THE DEFECTIVE PACKING ON THE OIL TANK CAP AND TIGHTENED OIL PRESSURE SWITCH LINE B-NUT, IAW MM REF 79-20-11 AND 79-11-0. SERVICED THE NR 3 ENGINE FOUR QUARTS OF OIL AND PERFORMED AN ENGINE GROUND RUN, NO LEAKS NOTED.