# SDR ASAA2022090939917

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2022
- Submitted: September 12, 2022
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 59,405 hours, 17,260 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Overheat
- Part number: UNKNOWN
- Condition: Warning Light
- 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/ASAA2022090939917

## Discrepancy

LEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. FOUND LEFT FRONT WINDSHIELD SENSOR SWITCH IN SPARE POSITION PERFORMED WINDOW TEMP SENSOR RESISTANCE CHECK IAW B737-800 AMM 30-41-21-760-801 PRIMARY SENSOR CHECK GOOD , SPARE SENSOR CHECKED OPEN PLACED SENSOR SELECT SWITCH TO PRIMARY AND PERFORMED WINDOW HEAT CONTROL UNIT BITE PROCEDURE SYSTEM OPS CHECK GOOD IAW AMM 30-41-00-710-801 & B737-800 FIM 30-41 TASK 801.

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