# SDR CA150526001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2015
- Submitted: August 5, 2015
- Operation: General aviation
- Make and model: Cessna 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (OpenAirDocs)
- Aircraft time: 8,107 hours
- Engine: Lyc O320H2AD
- System (JASC): [3452 · ATC Transponder System](https://openairdocs.org/jasc/3452)
- Part: Transponder
- Part number: AT165
- Condition: Smoke
- Location: Atc
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA150526001

## Discrepancy

(CAN) DURING TAXI OF ACFT, SMOKE WAS NOTICED COMING OUT FROM FACE OF TRANSPONDER.  ACFT WAS SHUTDOWN & MAIN BASE NOTIFIED.  AN INSPECTION WAS CARRIED OUT FROM A LOCAL AMO & DETERMINED TO BE AN INTERNAL PROBLEM WITH THE TRANSPONDER.  THE UNIT WAS REMOVED & ACFT PROCEEDED WITH INTENDED FLIGHT BACK TO MAIN BASE.

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