What was found
ON APPROACH INTO PHX ,THE CREW SELECTED FLAPS AND NOTICED A HYD FLOW LOW ANNUNCIATOR. THE APPROACH WAS ABORTED AND AN EMERGENCY WAS DECLARED. ATC CLEARED AIRCRAFT TO EXTENDED DOWNWIND APPROACH AND THE CREW EXTENDED THE LANDING GEAR WITH THE EMERGENCY BLOWDOWN SYSTEM. FLAPS UP LANDING ACCOMPLISHED WITH NO PROBLEMS. MAINTENANCE FOUND THAT THE HYDRAULIC FLUID WAS LOW AND THERE WAS FLUID COMING FROM THE BELLY OF THE AIRCRAFT. FURTHER TROUBLESHOOTING LED TO A BROKEN FLAP PRESSURE HYDRAULIC LINE AT A FITTING ATTACH POINT. THE LINE WAS REPLACED, SYSTEM BLEED, FILTERS INSPECTED AND ALL SYSTEMS OPS CHECKED GOOD.