As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE - CREW REPORTED BLACK SMOKE IN THE COCKPIT AND CABIN DURING LANDING ROLL OUT AND DECLARED AN EMERGENCY. AARF COULD NOT SEE ANY SMOKE. EVENT WAS POSSIBLY CAUSED BY RUNWAY TREATMENT CONTAMINATION. NO TROUBLE FOUND. PERFORMED NO-GO ECS DECONTAMINATION. (LP 8035104)