SDR ASAA2015122914547

Service difficulty report · Sensor · Boeing 737890

Difficulty date: December 29, 2015
Submitted: December 31, 2015
Operation: Air carrier
Aircraft: N568AS
Make and model: Boeing 737890
Aircraft serial: 35183
Aircraft time: 34,170 hours, 10,541 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Sensor
Part number: 1016755
Condition: Failed
Location: L2 Window
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

LEFT SIDE WINDOW, L-2, OVERHEAT LIGHT ILLUMINATED IN CRUISE. RAN QRH. WINDOW RESET AND OPERATED NORMALLY. ACFT GROUNDED. PERFORM WHICH BITE, REF FIM 30-41-801. FOUND SENSOR FAULT IN FAULT HISTORY. SWAPPED TO SPARE SENSOR, REF AMM 30-41-21-760-801. PERFORM BITE TEST AGAIN. NO FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL.