What was found
IAH - FLIGHT 2331, THE CREW REPORTED A LANDING GEAR AIR GROUND FAILURE MESSAGE ON EICAS ON INITIAL TAKEOFF. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT, REMOVED, CLEANED, AND REINSTALLED THE CONNECTORS ON THE LEFT MAIN LANDING GEAR FORWARD PROXIMITY SENSORS, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.