# SDR ASAA2019070729940

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2019
- Submitted: July 9, 2019
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 41,733 hours, 12,769 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Sensor
- Condition: Malfunctioned
- Location: Window Heat
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019070729940

## Discrepancy

JUST PRIOR TO PUSHBACK FWD RIGHT WINDOW OVERHEAT LIGHT ILLUMINATED. RAN CHECKLIST, LIGHT REMAINED ON. GROUNDED - YES. WHCU BITE FAILED WITH SENSOR ILLUMINATED. SWAPPED TO SPARE SENSOR. OP CK NORMAL. REF FIM 30-40 TASK 812.

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