As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED SMOKE IN THE COCKPIT AND CABIN AFTER TAKE-OFF. PERFORMED AN AIR RETURN AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND DETERMINED DEICEING FLUID INGESTION. PERFORMED DECONTAMINATION OF AIR DUCTS AT HIGH POWER WITH LEFT AND RIGHT ENGINES AND APU. NO SMOKE OR HAZE WAS FOUND. THE AIRCRAFT WAS RELEASED FOR SERVICE.