As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE START PRIOR TO TAKEOFF, SEVERAL EMERGENCY FLOOR LIGHTS WERE NOTED TO BE INOPERATIVE. MAINTENANCE WAS CALLED OUT TO TROUBLESHOOT THE PROBLEM. MAINTENANCE INSPECTED AND REPLACED THE 5LK EMERGENCY POWER PACK, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE COMPLETED.