As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE EMERGENCY LIGHTS WERE NOT ILLUMINATING AT ROWS 4 THROUGH 6. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE 5LK POSITION IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONALS CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.