As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2424 - THE CREW REPORTED A LANDING GEAR AIR GROUND FAIL MESSAGE DURING CLIMB. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RT MLG NR 1 WOW SWITCH CONNECTOR, AND THE LEFT MLG NR 2 WOW SWITCH HARNESS, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.