As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT INSPECTION, THE CREW REPORTED THAT PORTIONS OF THE EMERGENCY EXIT LIGHTS WERE INOPERATIVE. MAINTENANCE PERSONNEL REMOVED AND REPLACED THE NR 4 EMERGENCY BATTERY. AN OPERATIONAL CHECK WAS SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.