What was found
DURING CLIMB AFTER GEAR RETRACTION, 'A' SYSTEM HYDRAULICS DROPPED BELOW TWO GALLONS WITH 'B' SYSTEM HYDRAULIC QUANTITY DROPPING TO ZERO. AIRCRAFT RETURNED TO MSP, DUMPED 10,000 LBS OF FUEL AND LANDED WITHOUT INCIDENT. FOUND QUICK DISCONNECT IN HYDRAULIC SYSTEM BAY LEAKING AT ADAPTER ON PRESSURE SIDE OF NR 2 HYDRAULIC PUMP. REPLACED NR 2 HYDRAULIC PUMP, LEAK CHECK OK.