What was found
EN ROUTE FROM IAH TO DFW, DURING THE GEAR UPLATCH CHECK THE NOSE GEAR FAILED AND EXTENDED. THE FLIGHT CREW CYCLED THE GEAR TO PERFORM A SECOND CHECK WITH NO SUCCESS. THE FLIGHT CONTINUED TO DFW FOR AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE NOSE LANDING GEAR CONTROL SYSTEM WHICH REVEALED DISCREPANCIES. MAINTENANCE RIG THE NOSE LANDING CONTROL VALVE LINKAGE IN ACCORDANCE WITH THE MAINTENANCE MANUAL AND PERFORMED A SUCCESSFUL GEAR SWING. THE AIRCRAFT WAS RETURNED TO SERVICE.