As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - EMERGENCY LIGHTS ABOVE SLIDE AND AT CAT WALK IN AFT ACCESSORY COMPARTMENT INOPERATIVE. REPLACED BATTERY PACK AT B5 28 FOR EMERGENCY LIGHTS ABOVE SLIDE AND AT CAT WALK IN AFT ACCESSORY COMPARTMENT. SYSTEM GROUND CHECKED NORMAL OPERATION.