# SDR ASAA2017022619948

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2017
- Submitted: February 28, 2017
- Operation: Air carrier
- Aircraft: [N477AS](https://openairdocs.org/aircraft/N477AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40716
- Aircraft time: 6,787 hours, 2,237 cycles
- System (JASC): [3097 · Ice/Rain Protection System Wiring](https://openairdocs.org/jasc/3097)
- Part: Wire
- Part number: ABC57021
- Condition: Failed
- 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/ASAA2017022619948

## Discrepancy

AT CRUISE R2 WINDSHIELD OVERHEAT LIGHT ILLUMINATED,  PERFORMED QRH CHECKLIST, LIGHT REMAINED OUT.  ACFT GROUNDED. NUMEROUS FAULT FOR SENSOR ON WHCU BITE. RESISTANCE CHECKED FOR WINDOW COLD & EXTENDED HEAT APPLIED SHOW SAME VALUE WITHIN LIMITS, IAW AMM 30-41-21 & WDM 30-41-11. REPLACED COIL CORD, WINDOW HEAT OPERATIONAL TEST PASSED.

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