# SDR CVG2007F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2007
- Submitted: November 7, 2007
- Operation: Air carrier
- Aircraft: [N431DA](https://openairdocs.org/aircraft/N431DA), registered now
- Make and model: Lear 31A
- Registry model: [Lear 31A](https://openairdocs.org/model/learjet-31a) (OpenAirDocs)
- Aircraft serial: 163
- Engine: Garrtt TFE7312B
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Defog System
- Part number: 660393003
- Condition: Failed
- Location: Cockpit Window
- Part time: 2,464 hours
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CVG2007F00000

## Discrepancy

(DAE ID NR 07-277) ON DESCENT, AFTER TURNING ON WINDSHIELD DEFOG IAW CHECKLIST, WINDSHIELD BEGAN TO VISIBLY ARC AND ELECTRICAL ODOR FILLED COCKPIT.  AFTER TURNING WINDSHIELD DEFOG OFF, ARCING STOPPED AND ODOR DISSIPATED.  LT WINDSHIELD ELECTRICAL ELEMENT FAILED.  REPLACED LT WINDSHIELD.  (K)

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