What was found
GDV - NO NOSEWHEEL STEERING, POSSIBLE UNCOMMANDED HYDRAULIC PRESSURE TO THE RIGHT. TEMP IN GDV WAS -23 DEGREES FAHRENHEIT. SUSPECT INTERNAL FAILURE OF NOSEWHEEL STEERING ACTUATOR. DEACTIVATED NWS PER MEL AND FERRIED A/C TO BIL. REMOVED AND REPLACED NWS ACTUATOR. REPLACED WIRE BUNDLE, SPECIFICALLY WIRE 713B-22 WHICH WAS BROKEN IN NOSE WHEELWELL. NWS OPS CHECKED OK AND GEAR RETRACT FUNCTION CHECKED NORMAL.