What was found
DEN/JAC - FLT 7532 - EN ROUTE APPROXIMATELY 40 MILES OUT OF DEN, EXPERIENCED NR 1 HYD SYSTEM PRESSURE AND QUANTITY LOSS. THE CREW THEN DELCARED AN EMERGENCY AND RETURNED TO DEN WITHOUT INCIDENT. MAINTENANCE INSPECTED ACFT AND FOUND A HYD LINE, P/N 82960010191, AT THE NR 2 SPU WHICH HAD CRACKED AT THE FLARE. THE LINE WAS REPLACED BY A TEMPORARY FLEXIBLE LINE, P/N DSC-252B40124, PER AMM TO BE REPLACED WITHIN 200 FLIGHT CYCLES. THE NR 2 HYD SYSTEM WAS THEN SERVICED AND LEAK CHECKED WITH NO DISCREPANCIES AND THE ACFT WAS RETURNED TO SERVICE.