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