As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH- ON CLIMBOUT THE CREW NOTED THAT THE LANDING GEAR LEVER DISAGREE/UP POSITION/RIGHT MAIN NOT FULLY RETRACTED (AIRBORNE). THE CREW DECLARED EMERGENCY AND RETURNED TO IAH WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE UPLOCK BOX IN THE RIGHT MAIN LANDING GEAR WHEEL WELL, PERFORMED A OPERATIONAL CHECK OF THE LANDING GEAR SYSTEM, NO DEFECTS NOTED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.