As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING THIS FLIGHT WE EXPERIENCED A HYDRAULIC FAILURE OF THE NR 2 HYDRAULIC SYSTEM NUMBER . AFTER THE LANDING, THE INSPECTION REVEALED A CRACKED ENGINE DRIVEN PUMP FEED PRESSURE TUBE.MOD 8Q100820 WAS INTRODUCED TO IMPROVE THE RELIABILITY OF THE TUBES BY CHANGING THE MATERIAL FROM ALUMINIUM TO STAINLESS STEEL, AND TO INTRODUCE MACHINED FLARED END FITTINGS IN LIEU OF THE FORMED FLARED.