What was found
NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR RETRACTION ACCOMPANIED BY TAKEOFF WARNING HORN AND LOSS OF PRESSURIZATION. CREW RECYCLED GEAR AND GEAR INDICATION AND SYSTEM FUNCTIONS RETURNED TO NORMAL. FLIGHT WAS CONTINUED TO DESTINATION AND AN UNEVENTFUL LANDING WAS ACCOMPLISHED. MAINTENANCE REPLACED THE NOSE GEAR STRUT SCHRADER VALVE AND SERVICED STRUT TO PROPER LEVEL. OPERATIONAL CHECK NORMAL.