# SDR 224873

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2004
- Submitted: December 28, 2004
- Operation: Air carrier
- Aircraft: N121CQ
- Make and model: Saab SF340A
- Registry model: [Saab SF340A](https://openairdocs.org/model/saab-scania-sf340a) (OpenAirDocs)
- Aircraft serial: 121
- Aircraft time: 32,725 hours, 31,560 cycles
- System (JASC): [3430 · Landing and Taxi Aids](https://openairdocs.org/jasc/3430)
- Part: Receiver
- Condition: Inoperative
- Location: Navigation
- Stage of operation: CL
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/224873

## Discrepancy

NR 1 AND NR 2 NAV RECEIVERS INOPERATIVE WITH MULTIPLE NAV FREQUENCIES SELECTED.  NO CDI DISPLAY, NO DME, RMI'S SHOWED CORRECTLY.  AIRCRAFT RETURNED TO MAINTENANCE HANGAR.

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