As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW FOUND EMERGENCY LIGHTS 4, 5, 6, AND 7 NOT WORKING. THE AIRCRAFT WAS FERRIED TO PIT. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE 6LK LOCATION IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.