What was found
IAH - FLIGHT 3027, THE CREW REPORTED THAT ON DEPARTURE FROM IAH, RECEIVED A LANDING GEAR AIR GROUND FAIL AND THE LANDING GEAR HANDLE WOULD NOT UNLOCK. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT, SERVICED THE NLG, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.