# SDR ASAA2022051738350

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2022
- Submitted: May 18, 2022
- Operation: Air carrier
- Aircraft: [N493AS](https://openairdocs.org/aircraft/N493AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41727
- Aircraft time: 22,112 hours, 6,959 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Sensor
- Part number: UNKNOWN
- Condition: Failed
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: M
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022051738350

## Discrepancy

WINDOW OVERHEAT ON RIGHT SIDE WINDOW, FOLLOWED QRH. OVERHEAT LIGHT REMAINED EXTINGUISHED. GROUNDED - YES. WHCU SHOWS MULTIPLE WINDOW SENSOR FAULTS. SWAPPED R2 SENSOR TO SPARE. CLEARED WHCU HISTORY, BITE TEST GOOD.

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