# SDR ASAA2017040920420

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2017
- Submitted: April 12, 2017
- Operation: Air carrier
- Aircraft: [N486AS](https://openairdocs.org/aircraft/N486AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44107
- Aircraft time: 6,271 hours, 2,123 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Sensor
- Condition: Malfunctioned
- Location: R2 Window
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017040920420

## Discrepancy

RIGHT SIDE WINDOW OVERHEAT ILLUMINATED AT CRUISE. QRH FOLLOWED AND LIGHT EXTINGUISHED.  ACFT GROUNDED. TROUBLESHOT IAW FIM 30-41 TASK 811. FOUND WINDOW SENSOR FAILED ON LAST 7 LEGS ON WHCU.  DUE TO HISTORY,  SWAPPED FROM PRIMARY SENSOR TO SPARE SENSOR,  RESISTANCE CHECKED GOOD IAW AMM 30-41-21-760-801.

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