What was found
YIP/SFO - FLT 63060 - EN ROUTE AT 1315Z, LOST ALL MAIN SYSTEM HYDRAULIC PRESSURE, LOST QUANTITY, BUT STILL IN NORMAL RANGE. DECLARED EMERGENCY WITH ATC AND PROCEEDED TO DESTINATION. REPLACED LEAKING HYDRAULIC LINE, PN R124-01-2, AT LEFT AILERON POWER PACK SERVICED HYDRAULIC SYSTEM WITH 500 B-4 SKYDROL IAW DC-8 MM CHAPT. 12-30-1. NO LEAKS NOTED, CYCLED ALL SYSTEMS, HYDRAULIC RESERVOIR FULL. (X)