What was found
UPON TAXIING TO GATE, NOSE WHEEL STEERING NOT CONTROLLABLE. WITH NOSE WHEEL STEERING ENGAGED, MAIN HYD ACCUMULATOR PRESSURE DROPS BELOW 1850 IN 1-2 SECONDS. NOSE WHEEL STEERING DOES NOT RESPOND WITH HYD PUMP SWITCH IN AUTO OR OVERRIDE. PUMP CYCLES EVERY 2 SECONDS WITH NOSE WHEEL STEERING ENGAGED. NO VISIBLE LEAKS FLUID LEVEL IS WITHIN LIMITS. MAINTENANCE REPLACED NOSE WHEEL STEERING ACTUATOR. ALL CHECKS GOOD AT THIS TIME.