What was found
AT APPROXIMATELY FLIGHT LEVEL 220, NR 3 LOW OIL PRESSURE/FILTER BYPASS LIGHT FLASHED ON AND OFF. CONFIRMING LOW PRESSURE ZERO QUANTITY AND RED LINE OIL TEMPERATURE. ENGINE WAS SHUT DOWN, LANDING ACCOMPLISHED DFW. REPLACED NR 3 ENGINE PER WORK CARDS 70T0001, 70T0003, 70T0301, AND C/W FEC-M-0485 ENGINE RUN FORM, ALL OPS AND LEAK CKS GOOD.