As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT THE PILOT NOTICED A LOSS OF HYD PRESSURE ON NR 1 HYDRAULIC SYSTEM. THE SYSTEM WAS DEACTIVATED AND THE PILOT RETURNED TO BASE. AFTER LANDING, SYSTEM NR 1 WAS INSPECTED AND A HYD PRESSURE HOSE WAS FOUND RUPTURED. THE HOSE ASSEMBLY WAS REPLACED AND THE SYSTEM SERVICEABILITY CHECKS WERE COMPLETED.