As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE PREFLIGHT INSPECTION,THE CENTER EMERGENCY FLOOR PATHWAY LIGHTING WAS NOTED TO BE INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE NUMBER TWO BATTERY PACK IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01.OPERATION CHECK WAS GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.