What was found
SAV - FLT 486 - DURING CLIMBOUT FROM SAV TO CLT, THE A HYD SYS LOW OIL PRESSURE LIGHT ILLUM. FLT CREW NOTED A LOSS OF A HYD SYS QUANTITY. ELEC HYD PUMPS AND NR 1 ENG DRIVEN HYD PUMP WERE SHUTOFF 40 SECONDS AFTER FIRST INDICATION OF SYS LOSS. CREW DECLARED AN EMERGENCY AND RETURNED TO FIELD. FLT LANDED WITHOUT INCIDENT. MX FOUND THE NR 3 FLIGHT SPOILER ACTUATOR LEAKING. REPLACED O-RING ON FILTER CHECK VALVE CAP ON ACTUATOR PER MM 27-61-00. R&R NR 1 ENG DRIVEN HYD PUMP (P/N 65075-06) PER MM 29-15-00 DUE TO LOW PRESSURE LIGHT ON AND METAL CONTAMINATION FOUND IN CASE DRAIN FILTER. FLUSHED CASE DRAIN FILTER LINE PER MM 29-15-17. SERVICED HYDRAULIC SYSTEM TO FULL. OPERATIONAL CHECK AND LEAK CHECK GOOD. (M)