As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED MAINTENANCE THE AFT AISLE EMERGENCY LIGHTS WERE FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE NR 4 EMERGENCY LIGHT BATTERY, OPERATIONALLY TESTED THE LIGHTING SYSTEM AND APPROVED THE AIRCRAFT FOR RETURN TO SERVICE.