As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 2969 MAINTENANCE FOUND NUMEROUS EMERGENCY LIGHTS INOPERABLE IN THE AFT CABIN. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED NR 4 EMERGENCY BATTERY AND CHARGER POWER SUPPLY. THE AIRCRAFT WAS RETURNED TO SERVICE.