As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, NOSE LANDING GEAR DID NOT EXTEND NORMALLY. EXTENDED GEAR USING EMERGENCY PROCEDURE. ANALYSIS REVEALED NOSE LANDING GEAR UPLOCK ACTUATOR BYPASSING HYDRAULIC FLUID. REMOVED AND REPLACED NOSE GEAR UPLOCK ACTUATOR. PERFORMED OPERATIONAL TEST PER GULFSTREAM MAINTENANCE MANUAL. OPERATIONAL TEST WAS GOOD AND AIRCRAFT RETURNED TO SERVICE.