# SDR PNSA2013121905

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2013
- Submitted: December 20, 2013
- Operation: Air carrier
- Aircraft: [N685PA](https://openairdocs.org/aircraft/N685PA), registered now
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 212
- Aircraft time: 51,254 hours
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Module
- Part number: 6224401001
- Part serial: 8148
- Condition: Failed
- Location: Air Data
- Part time: 3,528 hours
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/PNSA2013121905

## Discrepancy

TCAS INOPERATIVE, TRANSPONDERS 1 AND 2 INOPERATIVE. FLIGHT DIRECTOR INOP. R & R AIR DATA COMPUTER.

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