As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 WINDOW OVERHEAT. GROUNDED - YES. ACCOMPLISHED WHCU BITE IAW FIM 30-41 TASK 801 #1 WHCU SHOWS WHCU LRU P5-9 C WINDOW SENSOR ON FAULT HISTORY SWAPPED NR 1 AND NR 2 WHCU IAW AMM 30-41-11, NO HELP. REINSTALLED WHCUS INTO ORIGINAL POSITION. REPLACED P5-9 HEAT MODULE PER AMM 30-41-41 WINDOW HEAT OPERATES NORMALLY PERFORMED WINDOW HEAT SYS TEST PER AMM 30-31-00 ALL HEATERS OPERATE NORMALLY.