What was found
AIRCREW WROTE UP OIL QUANTIY IN NR 2 PRIOR TO FLT STARTED WITH 4 1/2 GALLONS. QUANTIY WAS 2 1/2 GALLONS STARTING CRUISE. AFTER APPROXIMATELY 40 MINUTES OIL OUANTY WAS ZERO. COMPLIED WITH RED TABS DURING CRUISE. SHUTDOWN NR 2 ENGINE WHEN PRESSURE DROPPED IN THE YELLOW ZONE, COMPLIED WITH QRH, UNEVENTFUL ONE ENGINE INOPERATIVE LANDING. AFTER TALKING WITH CREW 30-35 OIL PRESSURE TIME OF SHUT DOWN: 0 OIL PRESSURE TIME OF WINDMILLING, WINDMILLED FOR 10 MINUTES. REMOVED AND REPLACED NR 2 ENGINE IN REF TO WORK CARD 70T0002, AND WORK CARD 70T0301-02.