As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT LEFT FORWARD WINDOW OVERHEAT LIGHT ACCOMPLISHED QRM PROCEDURE FOR WINDOW OVERHEAT, WINDOW OVERHEAT LIGHT ILLUMINATED AGAIN AFTER RESET ATTEMPT. GROUNDED - YES. FOUND CB OUT P6-11 (B9) WINDOW HEAT POWER LEFT FRONT OPENED RESET CB C/W OPS TEST OF WINDOW HEAT SYS REF B737-900 AMM TASK 30-41-00-710-801. WINDOW HEAT OPERATES NORMALLY.