What was found
L FWD WINDOW OVERHEAT LIGHT CAME ON QRH RUN, LIGHT CAME BACK ON. GROUNDED - YES. WHCU FAILS BITE WITH SENSOR FAULT. SWAPPED TO SPARE SENSOR BITE CHECK NORMAL. REF FIM 30-41 TASK 812.
- Difficulty date
- July 28, 2019
- Submitted
- July 30, 2019
- Operation
- Air carrier
- Aircraft
- N495AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41728
- Aircraft time
- 13,742 hours, 4,442 cycles
- System (JASC)
- 3040 · Windshield/Door Rain/Ice Removal
- Part
- Sensor
- Part number
- UNKNOWN
- Condition
- Failed
- Location
- Window Heat
- 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.