As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON A FLIGHT FROM CNY TO GJT USING DE-ICE EQUIPMENT, THE AMBER "DE-ICE" CAWS LIGHT CAME ON WITH A VISUAL AND AURAL CAUTION LIGHT. FOLLOWED PC-12 QRH - GREEN "PROP DE-ICE" WAS NOT FLASHING AS PER CHECK LIST. FOLLOWED PROCEDURE ANYWAY, PROBLEM PERSISTED, PROCEEDED TO LAND AT GRAND JUNCTION WITH NO ISSUES. REPORTED TO MCAS AND THE LOCAL MAINTENANCE TEAM.