What was found
LEFT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. PERFORMED FIM 30-41 TASK 811. PERFORMED BITE CHECK ON LEFT SIDE WHCU, BITE CHECK PASSES, REF FIM 30-41 TASK 801. PERFORMED TEMP SENSOR RESISTANCE CHECK. LEFT SIDE WHCU RESISTANCE CHECK PASSES ON PRIMARY AND SECONDARY SENSORS, REF AMM 30-41-21. PERFORMED WINDOW HEATER RESISTANCE CHECK, RESISTANCE CHECK GOOD, REF AMM 30-41-21. PERFORMED OPS CHECK OF LEFT SIDE WHCU, OPS CHECK GOOD, REF AMM 30-41-00. FOUND TO BE INTERMITTENT FAULT.