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 LIGHTS WOULD NOT OPERATE IN THE AFT SECTION OF THE CABIN. MAINTENANCE INSPECTED AND REPLACED THE 7LK BATTERY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-00. OPERATIONAL CHECKS WERE COMPLETED AND THE AIRCRAFT RETURNED TO SERVICE.