What was found
(CAN) ON GEAR LET DOWN, PILOT EXPERIENCED HYDRAULIC SYSTEM FLOW PROBLEMS INDICATED BY HYDRAULIC FLOW LIGHTS IN THE ANNUNCIATOR PANEL. THE UNDER CARRIAGE WAS LOWERED WITHOUT TROUBLE. MAINTENANCE FOUND A CRACKED HYDRAULIC PRESSURE LINE BETWEEN THE RIGHT WING HYDRAULIC FILTER AND THE FUSELAGE BULKHEAD FITTING. A NEW LINE ASSEMBLY WAS INSTALLED. THE SYSTEM WAS FUNCTIONALLY TESTED AND THE AIRCRAFT WAS RETURNED TO SERVICE.