What was found
DURING CRUISE FLIGHT FROM GCN-LAS, FLIGHT CREW REPORTED HYDRAULIC PRESSURE FELL TO ZERO AND EMERGENCY PUMP DID NOT WORK EITHER. AN EMERGENCY WAS DECLARED TO ATC AND A SUCCESSFUL LANDING WAS MADE. COMPANY MAINTENANCE PERSONNEL FOUND HYDRAULIC FLUID LEAKING AT THREADED UNION OF NOSE WHEEL STEERING ACTUATOR AND ACTUATOR FILTER. HELICOIL THREADS IN ACTUATOR PORT APPEARED TO NOT PROVIDE ADEQUATE THREAD ENGAGEMENT TO FILTER ASSY. ACTUATOR WAS REPLACED. (M)