As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH DESCENDING THROUGH 7000FT, LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED, RAN CHECKLIST TO TURNING SWITCH OFF. AFTER LANDING COMPLETED CHECKLIST AND OVERHEAT DID NOT RETURN. GROUNDED - YES. VERIFIED WHCU FOR L/H "SIDE WINDOW" OPS TEST OK REF B737-900 AMM 30-41-11-400-801. ETOPS GROUND VERIFICATION COMPLETE.