What was found
IAD/ILM - FLT 950 - DURING APPROACH AT 0905 HRS ON 10-04-97, MADE A SCHEDULED LANDING AT ILM WITH ONE DISCREPANCY WHICH WAS THE NR 3 HYDRAULIC SYSTEM QUANTITY AND PRESSURE WENT TO ZERO. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND FOUND TWO HYDRAULIC LEAKS AND REMOVED AND REPLACED O-RINGS AT NR 3 ACCUMULATOR AND REMOVED AND REPLACED FLEX LINE ON 3B HYDRAULIC PUMP. OPS CHECK OK. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. REF: OPERATOR CONTROL NR 97ZZZX4853. (X)