What was found
DURING CRUISE, AT 33,400 FEET, NR 3 ENGINE OIL QUANTITY AND OIL PRESSURE DROPPED RAPIDLY TOWARDS -0- PERFORMED PRECAUTIONARY SHUTDOWN. FLIGHT CONTINUED TO DESTINATION AND MADE A SAFE LANDING. INVESTIGATION REVEALED RADIAL DRIVE LEAKING, REPLACED RADIAL DRIVESHAFT HOUSING ASSY IAW 747MM 72-61-01 PG 401, 72-03-03 PG 401, 72-61-04, CW B747 FIM 79-01-00 PG 237 XQ. RUN AND LEAK CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE.