# SDR DXTA200803038

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2008
- Submitted: May 2, 2008
- Operation: Air carrier
- Aircraft: [N304QS](https://openairdocs.org/aircraft/N304QS), registered now
- Make and model: Cessna 560CESSNA
- Aircraft serial: 5600408
- Aircraft time: 7,990 hours, 6,815 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Sensor
- Part number: 99120853
- Part serial: 10AM247
- Condition: Inoperative
- Location: Cockpit
- Part time: 7,990 hours, 6,815 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: J, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA200803038

## Discrepancy

DURING DESCENT, W/S AIR O HEAT ILLUMINATED THEN CYCLED OFF THEN ILLUMINATED AGAIN BUT CONTINUOUS.  THE SWITCH WAS IN LOW AND COULD SMELL BURNING ODOR. REPLACE WINDSHIELD TEMPERATURE SENSOR AND TEMPERATURE BULB WITH NEW.  OPS/LEAK CHECKS GOOD.  DONE IN REF.

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