As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT FOR A REPOSITION FLIGHT, THE AUX AND PAC WARNING LIGHT CAME ON, FOLLOWED BY THE REAR BAGGAGE SMOKE WARNING LIGHT. SMOKE BEGAN TO FILL THE CABIN AREA, PERFORMED EMERGENCY EVACUATION FOR FLIGHT CREW. ITEM IS UNDER INVESTIGATION.