As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABOUT (1) HR AFTER DEPARTURE FROM (ORD), AT CRUISE FLT, NR 3 ENGINE LOSS OIL QTY AND OIL PRESSURE (TO ZERO) ACCOMPANIED BY ENGINE OIL PRESSURE NR 3 LIGHT. ACCOMPLISHED AOM PROCEDURE AND ENGINE FAILURE/SHUTDOWN CKLIST. AIRCRAFT RETURNED TO (ORD) WITHOUT FURTHER INCIDENT. REMOVE AND REPLACED THE NR 3 ENGINE IAW MM 71-00-02 AND COMPANY WORKFORMS. RUN-UP AND FUNCTIONAL TEST OK, AIRCRAFT RETURNED TO SERVICE.