What was found
AIRCRAFT WAS GROUNDED: WHILE TAXIING ONTO THE DFW RAMP WITH THE RIGHT ENGINE SHUTDOWN WE STARTED TO LOSE HYDRAULIC QUANTITY IN SYSTEM A. NOSE WHEEL STEERING WAS LOST HALFWAY TO GATE A37 SO THE AIRCRAFT WAS STOPPED. WE RAN THE LOSS OF SYSTEM A QRH PROCEDURE AND NOSE WHEEL STEERING WAS MOMENTARILY REGAINED UNTIL THE HYDRAULIC SYSTEM B FLUID BEGAN TO DRAIN OUT. AIRCRAFT WAS STOPPED AND TOWED INTO THE GATE. SYS A INDICATES 0 RF QUANTITY, SYS B INDICATES 16 RF. MAINTENANCE FOUND RIGHT GEAR ACTUATOR HOSE BLOWN. REPLACED HOSE IAW AMM 32-32-11.