What was found
DGO - FLIGHT 2036, DURING CLIMB OUT THE CREW REPORTED A LANDING GEAR AIR GROUND FAIL MESSAGE ON EICAS, AND THE LANDING GEAR WOULD NOT RETRACT. THE ACFT RETURNED TO DGO WEHRE IT LANDED WITHOUT INCIDENT. THE ACFT WAS FERRIED TO IAH WHERE MAINTENANCE INSPECTED THE ACFT, AND REMOVED AND REPLACED THE NLG WEIGHT ON WHEELS PROXIMITY SENSOR. OPERATIONALLY CHECKED WITH NO DEFECTS NOTED, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE. (S)