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 GALLEY AREA EMERGENCY EXIT SIGN, FAILED TO ILLUMINATE WHEN TESTED. MAINTENANCE INSPECTED AND REPLACED THE 7LK BATTERY PACK, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.