As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK SEA FLT 7202: NUMBER ONE PROP DEICE FAULT LIGHT ILLUMINATED INTERMITTENTLY. AFTER CONSULTING WITH MAINTENANCE CONTROL CREW ELECTED TO RETURN TO SEATTLE DUE TO ICING CONDITIONS EN ROUTE. MAINTENANCE REMOVED AND REPLACED NR 1 PROP DE-ICING CONTROLLER. AIRCRAFT RETURNED TO SERVICE.