Service difficulty report · Warning Message · Boeing 737990ER

Difficulty date
November 19, 2022
Submitted
November 23, 2022
Operation
Air carrier
Aircraft
N448AS
Make and model
Boeing 737990ER
Aircraft serial
36356
Aircraft time
23,433 hours, 7,333 cycles
Part
Warning Message
Condition
False Activation
Location
Window
Stage of operation
NR
How discovered
V
Nature of condition
M
Precautionary procedure
K

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

What was found

PILOTS FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATE. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 30-41-801 WHCU BITE PROCEDURE NO FAULTS FOUND ON BITE PROCEDURE L FWD WINDOW HEAT NORMAL. FOUND CB POPPED.