As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE OFF, FROM ROA TO CVG; CREW REPORTED SMOKE IN FLIGHT DECK. AIRCRAFT RETURNED TO POINT OF DEPARTURE WITHOUT ANY FURTHER INCIDENT. MAINTENANCE PERSONNEL PERFORMED AN OPERATIONAL CHECK AND NO DEFECTS WERE NOTED. THE AIRCRAFT WAS RELEASED FOR SERVICE.