# SDR 2005FA0000580

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2005
- Submitted: March 17, 2005
- Operation: General aviation
- Aircraft: [N5434A](https://openairdocs.org/aircraft/N5434A), registered now
- Make and model: Cessna T210N
- Registry model: [Cessna T210N](https://openairdocs.org/model/cessna-t210n) (OpenAirDocs)
- Aircraft serial: 21063436
- Aircraft time: 5,225 hours
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Encoder
- Part number: A30
- Part serial: 47432
- Condition: Erratic
- Location: Altimeter
- Stage of operation: CR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2005FA0000580

## Discrepancy

ALTITUDE OUTPUT BECAME ERRATIC, VARYING SEVERAL HUNDRED FT BOTH ABOVE AND BELOW THE ACTUAL ALTITUDE OVER A PERIOD OF 30 MINUTES.  PROBABLY CAUSED BY INTERMITTENT HEATER THERMOSTAT.

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