As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2159, LEFT WINDSHIELD HOT CAUTION LIGHT ILLUMINATED DURING TAXI OUT. MAINTENANCE REPLACED LEFT WINDSHIELD HEAT CONTROLLER AND PERFORMED OPERATIONAL TEST OF WINDSHIELD HEAT SYSTEM IAW Q200 AMM 30-41-00-710-801. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.