As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - DURING TAXI WHEN APU WAS TURNED ON, CAUSED SMOKE IN CABIN AND COCKPIT. AN EMERGENCY EVACUATION OCCURRED. TAIL CONE SLIDE DEPLOYED. REPLACED SLIDE AND TAIL CONE. REPLACED APU DUE TO SKYDROL INGESTION CAUSING SMOKE AND ODOR IN CABIN AND COCKPIT. SYSTEM GROUND CHECKED NORMAL OPERATION.