What was found
IAH - FLIGHT 2368, THE CREW REPORTED THAT THE NOSE LANDING GEAR WOULD NOT FULLY RETRACT WITH A LANDING GEAR DISAGREE MESSAGE ON EICAS. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED, REPLACED, AND OPERATIONAL CHECKED THE NOSE LANDING GEAR UP-LOCK BOX IAW EMB-145 M/M 32-33-07, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.