What was found
(CAN) COCKPIT WARNING LIGHT ADVISE PILOT OF AN NR 1 HYDRAULIC SYS FLUID LOSS FOLLOWING A LOSS OF NR 1 HYDRAULIC SYSTEM PRESSURE. PILOTS FOLLOWED THE EMERGENCY LANDING PROCEDURES WITH NO FURTHER INCIDENT. MAINTENANCE AT AIRPORT FOUND, FOLLOWING INVESTIGATION, THAT AN HYDRAULIC LINE, THAT FEED THE INBD SPOILER, HAVE CHAFED ON A BLEED DUCT CAUSING A PIN HOLE. SUSPECT THAT LINE AN/OR DUCT WERE MIS-ALIGNED. LINE REPLACED, HYDRAULIC SYSTEM NR 1 SERVICED. EDP REPLACED IAW AMM DUE TO RUN DRY FOR MORE THAN 15 MINUTES AND NR 1 HYD SYSTEM FILTERS REPLACED, ACFT BACK SERVICEABLE.