# SDR P5CA2008121601583

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2008
- Submitted: December 17, 2008
- Operation: Air carrier
- Aircraft: [N450PA](https://openairdocs.org/aircraft/N450PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30808
- Aircraft time: 35,709 hours, 5,933 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Transponder
- Condition: Malfunctioned
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA2008121601583

## Discrepancy

DURING TAXI OUT CREW WAS UNABLE TO SELECT THE FIRST DIGIT ON TRANSPONDER.  MAINTENANCE CONFIRMED THE OPERATION OF THE LEFT AND RIGHT TRANSPONDERS IAW AMM 34-53-00.  THE AIRCRAFT DEPARTED WITH NO FURTHER ISSUES.

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