What was found
PIT - FLT 268 - APPROXIMATELY 30 MILES OUT FROM PIT, THE FLIGHT LOST SYSTEM A-HYDRAULIC QUANTITY. CREW SHUT OFF SYSTEM 'A' ELECTRIC HYDRAULIC PUMP AND FOLLOWED PROCEDURES. FLIGHT RETURNED TO FIELD AT PIT AND LANDED WITHOUT FURTHER INCIDENT. AIRCRAFT TAXIED TO THE GATE ON ITS OWN POWER. NO EMERGENCY WAS DECLARED. MAINTENANCE FOUND THE NR 1 ENGINE DRIVEN HYDRAULIC PUMP LEAKING. REMOVED AND REPLACED HYDRAULIC PUMP, FILTERS, AND FLUSHED SYSTEM. SERVICED HYDRAULIC RESERVOIR. OPERATIONAL CHECK AND LEAK CHECK GOOD. (X)