As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT INSPECTION, THE CREW NOTED THAT EMERGENCY FLOOR LIGHTING AT ROW FOUR WAS INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE 5LK EMERGENCY BATTERY PACK IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RELEASED FROM MAINTENANCE.