As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD LEFT WINDOW HEAT OVERHEAT. GROUNDED - YES. PERFORMED WHCU BITE CHECK PER FIM 30-41 TASK 801. LEFT HAND WINDOW SENSOR FAULT NOTED. SWITCHED WINDOW HEAT SENSOR TO ALTERNATE POSITION. NO FIX. RETURNED SWITCH TO ORIGINAL POSITION. SWAPPED WHCU PER AMM 30-41-11. NO FIX. WHCU RETURNED TO ORIGINAL POSITIONS. FUNCT CK'D ALL WINDOW TEMP CONTROL PER AMM 30-41-11-400-801. OPS NORMAL PER AMM 30-41-11-710-801. REPLACED NR 1 WINDOW PER AMM 56-11-11-400-821 OPS CHECK GOOD.