As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2526, DURING POST FLIGHT INSPECTION THE CREW REPORTED THAT THE EMERGENCY LIGHT SYSTEM DID NOT HOLD ENOUGH CHARGE TO ILLUMINATE THE CABIN CEILING WING EXIT LIGHT. MAINTENANCE INSPECTED THE AIRCRAFT, AND REMOVED AND REPLACED THE CABIN CEILING EMERGENCY LIGHT THAT IS FORWARD OF THE WING, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.