As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT SIDE WINDOW OVERHEAT WARNING LIGHT ILLUMINATED 3 HOURS AFTER TAKEOFF AFTER STARTING DESCENT. SWITCHED OFF FOR 2 MINUTES OPERATED OK THEREAFTER. LEFT SIDE WINDOW HEAT CONTROLLER LOGGED SENSOR FAIL. SWAPPED TO SPARE SENSOR LEFT SIDE WINDOW HEAT OPS NORMAL REF 30 41 0.