As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LINE CHECK, MAINTENANCE FOUND THAT THE CATWALK EMERGENCY PATHWAY LIGHTING IN THE TAIL COMPARTMENT WERE INOPERATIVE. MAINTENANCE REPLACED THE EMERGENCY BATTERY PACK AND ALSO REPLACED A DAMAGED WIRE HARNESS FROM THE FLOODLIGHTS TO THE CATWALK LIGHTS. OPERATIONALLY CHECKED THE SYSTEM AND RETURNED THE AIRCRAFT TO REVENUE SERVICE.