# SDR 97ZZZX1236

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N633TC](https://openairdocs.org/aircraft/N633TC), registered now
- Make and model: Piper PA-34-200T
- Registry model: [Piper PA-34-200T](https://openairdocs.org/model/piper-pa-34-200t) (OpenAirDocs)
- Aircraft serial: 348070314
- System (JASC): [3030 · Pitot/Static Anti-Ice System](https://openairdocs.org/jasc/3030)
- Part: Switch
- Part number: 9937726
- Condition: Failed
- Location: Pitot Heat
- Stage of operation: NR
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1236

## Discrepancy

PILOT REPORTED STRONG ELECTRICAL SMELL FROM LEFT SIDEWALL ELECTRIC SWITCH PANEL WITH ALL ANTI-ICE PROTECTION ON.  INVESTIGATION REVEALED PITOT HEAT SWITCH HAD ARCED AND BURNED INTERNALLY.  TOTAL TIME ON SWITCH 3,109.7 HOURS SINCE INSTALLED.

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