As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING MAINTENANCE INSPECTION SEVERAL EMERGENCY LIGHTS WEER FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE AND TWO EMERGENCY LIGHT BATTERY PACKS, OPERATIONALLY TESTED WITH NO DEFECTS NOTRED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.