As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON LANDING L2 WINDOW HEAT ON LIGHT WENT OFF. WINDOW FEELS COLD. ACFT GROUNDED. PERFORMED TROUBLESHOOTING IAW FIM 30-41 TASK 809. WHCU BITE FOR M0322 WAS GOOD WITH NO FAULTS. HEATER ELEMENT AT WINDOW WAS 60.3 OHMS. WINDOW HEAT SENSOR RESISTANCE FOR PRIMARY SENSOR WAS 320 OHMS AND SPARE WAS 315 OHMS. IAW WDM 30-41-11 SWAPPED FROM PRIMARY TO SPARE SENSOR DUE TO HISTORY. REMOVED AND REPLACED WHCU M322 IAW AMM 30-41-11-000-801/30-41-11-400-801. OPS CHECKED GOOD.