As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WINDOW OVERHEAT LIGHT FOR LEFT INBOARD WINDOW ILLUMINATED. RAN QRH WITHOUT SUCCESS. GROUNDED - YES. FOUND B9 C/B ON P6-11 OPEN WITH C/B NAME PLATE BENT FORWARD. CLOSED C/B AND PERFORMED BITE TEST ON LEFT FRONT WHCU REF B737-800 AMM 30-41-11. BITE TEST OK. NO FAULTS NOTED.