As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE L FWD WINDOW OVERHEAT LIGHT CAME ON QRH ACCOMPLISHED AND LIGHT REMAINS ON. GROUNDED - YES. PERFORMED WHCU BITE PER B737-800 FIM 30-41 TASK 801 L1 WINDOW LEFT FRONT BUS POWER FAULT FOUND L1 POWER CB OUT RESET BREAKER FAULT CLEARED AC OK FOR SERVICE SEAMC ARNIE NOTIFIED A&P 4285867.