OpenAirDocs.org

SDR ASAA2019062419794

Open the Markdown

Service difficulty report · Sensor · Boeing 737990ER

FAA SDR system

Difficulty date
June 21, 2019
Submitted
June 24, 2019
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
13,169 hours, 4,225 cycles
System (JASC)
3040 · Windshield/Door Rain/Ice Removal
Part
Sensor
Part number
PSE21
Condition
Faulted
Location
Window Heat
Stage of operation
CR
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

L2 WINDOW OVERHEAT LIGHT ILLUMINATED IN FLIGHT AT FL340, RESET PER QRH AND OPERATION NORML. GROUNDED - YES. DUE TO HISTORY PERF WCHU BITE TEST PER B737-900 FIM 30-41 TASK 811, LAST 8/10 FLIGHTS FOUND SENSOR FAULT FOR L2 SIDE WINDOW. MOVED PRIMARY SENSOR WIRE TO SPARE SENSOR, PERFORMED BITE OF L/H SIDE WINDOW, NO FAULTS NOTED AT THIS TIME.