As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ANTI-ICE DUCT WARNING, THEN ANTI-ICE DUCT CAUTION IN ICING CONDITIONS. RAN NON-NORMAL CHECKLIST. FLIGHT ATTENDANT REPORTED LIGHT ICE FORMING ON FRONT OF WING. WE INCREASED SPEED TO DISPERSE ICE. WHEN DISPERSAL WAS NOT SUCCESSFUL TURNED ANTI-ICE WING SWITCH BACK ON, MESSAGE DID NOT RETURN. AS NOTED ON WINDSHIELD WIPERS. INSPECTED & OPERATIONS CHECKED LT WING ANTI-ICE DUCTING IAW FIM 36-19-01. OPERATIONS CHECKED GOOD, ACFT OK FOR SERVICE.