As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2239 THE CREW REPORTED A LANDING GEAR AIR/GND FAILURE INDICATION AFTER T/O. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND A CHAFED WIRE ON THE RT TRAILING ARM WEIGHT IN WHEELS PROX SWITCH. THE WIRE WAS REPAIRED IN ACCORDANCE WITH EMB-145 WIRING MANUAL, OPS CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.