As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAXI THE FLIGHT CREW NOTICED A LOSS IN HYDRAULIC PRESSURE. FLUID WAS ADDED WITH NO EFFECT. THE PILOT NOTICED A HYDRAULIC LEAK FROM NR 2 ENGINE. THE ENGINE WAS THEN SHUTDOWN. THE PILOT DECIDED TO RETURN AND PARK. AT THIS TIME MAINTENANCE WAS CONTACTED AND NOTICED THAT THE PRESSURE LINE FROM THE HYDRAULIC PUMP HAD RUPTURED.