As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2593, AFTER LIFTOFF THE CREW REPORTED A LANDING GEAR AIR/GROUND FAILURE. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REPACKED & SERVICED THE NOSE LANDING GEAR, OPERATIONALLY CHECKED WITH NO DEFECTS NOTED. AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.