As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT SIDE WINDOW OVHT LIGHT ILLUMINATED DURING PREFLIGHT. PERFORMED BITE CHECK OF LT SIDE WHCU. FOUND LT SIDE SENSOR FAULT. PERFORMED FIM TASK 30 41 00 810 811. ON LT SIDE WINDOW SWAPPED SENSOR TO SPARE SENSOR. SYSTEM OPS CHECK NORMAL PER AMM 30 41 00 710 801.