# SDR ASAA2017022719961

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2017
- Submitted: March 7, 2017
- Operation: Air carrier
- Aircraft: [N469AS](https://openairdocs.org/aircraft/N469AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41702
- Aircraft time: 10,275 hours, 3,409 cycles
- System (JASC): [3097 · Ice/Rain Protection System Wiring](https://openairdocs.org/jasc/3097)
- Part: Wire
- Condition: Failed
- Location: Window Sensor
- Stage of operation: AP
- How discovered: U
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017022719961

## Discrepancy

OVERHEAT WINDOW HEAT ILLUMINATED R2 SIDE AT APPROXIMATELY 5000FT DURING APPROACH.  COMPLETED QRH AND DID NOT EXTINGUISH.  ACFT GROUNDED.  ACCOMPLISHED R2 SIDE WHCU BITE IAW FIM 30-41 TASK 811.  SENSOR FAULT ILLUMINATED IN CURRENT AND LAST 10 LEGS OF HISTORY. REMOVED SENSOR WIRE FROM PRIMARY TO THE SPARE POSITION. OPS TESTED NORMAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.