As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING CREW REPORTED SMOKE FROM THE FLOOR HEATING DUCTS. PAX HAD LEFT THE ACFT AND NO INJURIES WERE REPORTED. MX WAS ABLE TO DETERMINE THE CABIN ACM PAC WAS AT FAULT. THE PAC WAS DEFERRED. SDR WILL BE UPDATED UPON COMPLETION OF THE CORRECTIVE ACTION.