As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLIGHT CREW REPORTED NR 1 HYDRAULIC SYSTEM FLUID QUANTITY DEPLETING IN FLIGHT. AN EMERGENCY WAS DECLARED AND AIRCRAFT HAD AN UNEVENTFULL LANDING. POST LANDING INSPECTION BY MAINTENANCE FOUND CUSHION CLAMP MIGRATED AND CHAFFED SMALL PIN HOLE IN PRESSURE HYDRAULIC LINE. HYDRAULIC LINE REPLACED AND LEAK CHECKED SERVICEABLE