What was found
(CAN) APPROXIMATELY 5 MINUTES BEFORE TOP OF DESCENT, THE CREW RECEIVED A HYDRAULIC SYS 2 LOW QTY INDICATION FOLLOWED BY A HYD 2 FAILURE. AN EMERGENCY WAS DECLARED WITH ATC AND THE QRH WAS FOLLOWED. THE FLIGHT LANDED SAFETLY ON R23 WITH HYDRAULIC FLUID OBSERVED LEAKING FROM THE ACFT. ARRANGEMENTS WERE MADE TO HAVE THE ACFT TOWED TO THE GATE. NO ADVERSE PASSENGER REACTION WAS OBSERVED. MAINTENANCE CONTROL AND THE DUTY PILOT WERE ADVISED. NR 2 ENGINE EDP REPLACED IAW AMM 29-11-01. INSP/CHCK FOR EDP FAIL 05-50-23 CARRIED OUT. OPS CHECK AND LEAK CHECK OF EDP AND FILTERS CARRIED OUT, NO FAULTS FOUND.