As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 3086 - DURING PREFLIGHT INSPECTION THE CREW REPORTED A FLOOR LEVEL EMERGENCY LIGHT HAD ONE SECTION NOT ILLUMINATING. MAINTENANCE VERIFIED NORMAL OPERATION OF THE FLOOR LEVEL LIGHTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.