As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH- DURING MAINTENANCE TEST IT WAS NOTED THAT THE FLOOR EMERGENCY AISLE PATH LIGHT STRIP IN THE AFT CABIN FAILED TO ILLUMINATE. MAINTENANCE REMOVED AND REPLACED THE AFT EMERGENCY BATTERY, PERFORMED A OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM, NO DEFECTS NOTED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.