As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT INTO CAE WITH ENVIROMENTAL SYSTEMS SET TO FULL COLD, THE FLIGHT CREW REPORTED SMOKE ENTERING THE COCKPIT. THE FLIGHT LANDED IN CAE WITHOUT ANY DIFFICULTIES. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND NO DEFECTS WITH THE AIRCRAFT. THE AIRCRAFT WAS RETURNED TO SERVICE.