As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE PREFLIGHT INSPECTION, TWO STRIPS OF EMERGENCY FLOOR LIGHTING WERE NOTED TO BE INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY PACK AT 5LK POSITION, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-00. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.