As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING DESCENT THE NR 2 HYD SYS LOST ALL OF ITS FLUID AND THUS ALL NR 2 SYS SERVICES WERE LOST. THE LANDING GEAR WAS LOWERED BY ALTERNATE EXTENSION AND AN EMERGENCY WAS DECLARED. THE ACFT LANDED SAFELY. INVESTIGATION FOUND THE UNION FITTING, PN AN815-10D, FOR THE LINE FROM THE EDP AT THE MAIN PRESSURE MANIFOLD WAS FRACTURED CAUSING THE LOSS OF FLUID. THE FITTING WAS REPLACED AND THE HYDRAULIC SYSTEM SERVICED.