Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
January 18, 2020
Submitted
January 29, 2020
Operation
Air carrier
Aircraft
N433AS
Make and model
Boeing 737990ER
Aircraft serial
41704
Aircraft time
24,742 hours, 7,962 cycles
Part
Warning Light
Condition
False Activation
Location
Rt Window Heat
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RIGHT SIDE WINDOW OVERHEAT LIGHT ON WHEN SWITCHED TO ON. GROUNDED - YES. WITH WINDOW RIGHT SIDE HEAT ON, THE OVERHEAT LIGHT ILLUMINATED. RETURNED THE HEAT SWITCH TO OFF. RT SIDE WINDOW HEAT CONTROL UNIT FAULT HISTORY AND BITE VERIFY CAUSE RED LIGHT FOR WINDOW SENSOR. RAN FIM 30-41 TASK 801, AND FOUND NO FAULTS. OPS CHECK WINDSHIELD HEAT SYSTEM IAW AMM 30-41-00 AND OPS CHECKED GOOD.