Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
December 9, 2019
Submitted
December 12, 2019
Operation
Air carrier
Aircraft
N474AS
Make and model
Boeing 737990ER
Aircraft serial
40715
Aircraft time
17,811 hours, 5,723 cycles
Part
Warning Light
Condition
False Activation
Location
Window Overheat
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

CAPTAIN FWD WINDOW OVERHEAT ILLUMINATED AFTER COMPLYING WITH QRH. GROUNDED - YES. CLEARED FAULTS ON L/H FORWARD WHCU BITE PER B737-900 FIM 30-41-TASK 801. COMPLIED WITH FIM 30-41-TASK 812 PLACED L/H FWD WINDOW SENSOR SELECT SWITCH TO THE SECONDARY POSITION WINDOW OVERHEAT LIGHT EXTINGUISHED NO OTHER DEFECT NOTED.