As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - PROP DEICE CAUTION LIGHT CAM ON. RESET PROP DEICE PER CHECLIST, NO HELP ON CAUTION LIGHT. PROPS APPEARED TO WORK VIA GREEN LIGHTS. MAINTENANCE CHECKED CDS FAULT-ARONC RECEIVE BUS 2 ON TMCU 1 & 2. CLEARED FAULTS. PERFORMED FIM TASK. FUNCTION TEST AND CAL OF PROP DEICE SYSTEM. NO FAULTS REOCCURED. NO PARTS REPLACED, AIRCRAFT RETURNED TO SERVICE.