# SDR ASAA2018061125047

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 11, 2018
- Submitted: June 14, 2018
- Operation: Air carrier
- Aircraft: [N570AS](https://openairdocs.org/aircraft/N570AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35185
- Aircraft time: 43,164 hours, 12,812 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Sensor
- Condition: False Activation
- Location: Window
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018061125047

## Discrepancy

NR 2 WINDOW OVERHEAT LIGHT ILLUMINATED DURING APPROACH.  ACFT GROUNDED.  TROUBLESHOT IAW FIM 30-41, TASK 811. CURRENTLY FAULT LIGHT WAS NOT ON.  PERFORMED A WINDOW HEAT CONTROL UNIT BITE IAW FIM 30-41 TASK 801, TEST PASSED. PREVIOUS LEG FAULTED WINDOW SENSOR.  PERFORMED A CHECK OF THE WINDOW SENSORS AND FOUND VALUES TO BE WITHIN LIMITS.  DISCOVERED WINDOW WAS ALREADY USING SPARE SENSOR. REMOVED AND REPLACED THE FIRST OFFICER`S WINDOW ASSY IAW AMM 56-12-11. LEAK TESTED AND OPS CHECKED GOOD.

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