As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 3244, THE CREW REPORTED THAT THE SYSTEM-A GEAR INDICATION LIGHT ILLUMINATED ON TAKEOFF ROLL. THE CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE ADJUSTED THE LEFT MAIN LANDING GEAR A-SYSTEM PROXIMITY SENSOR, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.