# SDR 99ZZZX349

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N3670Z](https://openairdocs.org/aircraft/N3670Z), registered now
- Make and model: Piper PA-22-160
- Registry model: [Piper PA-22-160](https://openairdocs.org/model/piper-pa-22-160) (OpenAirDocs)
- Aircraft serial: 227408
- System (JASC): [3452 · ATC Transponder System](https://openairdocs.org/jasc/3452)
- Part: Connector
- Condition: Failed
- Location: Transponder
- Component: Narco, AT50A
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX349

## Discrepancy

LOSS OF B4 MODE C CODE LINE.  CONTACT PIN IN RACK LOST TENSION.  REPLACED ALL CONTACT PINS.

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