What was found
FLIGHT 4930, THE CREW REPORTED THAT THE NLG DOORS FAILED TO RETRACT. THE ACFT RETURNED TO ICT WHERE IT LANDED WITHOUT INCIDENT. MX INSPECTED THE ACFT AND FERRIED IT TO MCI WHERE MX REMOVED AND REPLACED THE NLG UPLOCK BOX, OPS TESTED WITH NO DEFECTS. THE ACFT WAS TEST FLOWN SATISFACTORILY, AND THEN WAS APPROVED FOR RETURN TO SERVICE.