As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING PREFLIGHT INSPECTION THE CREW REPORTED THE OVERHEAD LIGHTS AT EXIT ROWS TO BE INOPERATIVE. MAINTENANCE RECONNECTED THE EMERGENCY EXIT SIGNS AT 3A AND 12A, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.