Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
March 14, 2017
Submitted
March 16, 2017
Operation
Air carrier
Aircraft
N433AS
Make and model
Boeing 737990ER
Aircraft serial
41704
Aircraft time
13,617 hours, 4,426 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
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

RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. THE LIGHT ILLUMINATED AGAIN AFTER COOL-DOWN PER THE QRH. GROUNDED - YES. MEASURED SENSOR RESISTANCE - 333 OHMS. APPLIED DC340. ACCOMPLISHED WINDOW HEAT CONTROL UNIT SYSTEM TEST. ALL TESTS PASSED, REF AMM 30-41-21-760-801, 30-41-11-710-801.