Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
July 16, 2018
Submitted
July 18, 2018
Operation
Air carrier
Aircraft
N493AS
Make and model
Boeing 737990ER
Aircraft serial
41727
Aircraft time
8,818 hours, 2,997 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

DURING APPROACH LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED FIM 30-41 TASK 811. SENSOR RESISTANCE READINGS GOOD. WHCU BITE TEST PASSED; NO FAULTS. PERFORMED SHAKE DOWN ON M2675 COIL CORD; NO DISCREPANCIES NOTED.