# SDR DXTA200400289

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2004
- Submitted: April 8, 2004
- Operation: Air carrier
- Aircraft: [N924QS](https://openairdocs.org/aircraft/N924QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500124
- Aircraft time: 3,294 hours, 2,038 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Cdu
- Part number: 700549901
- Part serial: 000113681
- Condition: Failed
- Location: Nr 1 Fms
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA200400289

## Discrepancy

DURING CRUISE AT FL430, NR 1 FMS WENT BLANK WITH RED FMS NR 1 DISPLAYED ON CAPTAIN’S MFD. ABOUT 30 MINUTES LATER A FAINT ODOR OF BURNED INSULATION NOTICED, ODOR STAYED CONSTANT FOR THE REST OF THE FLIGHT. REMOVED AND REPLACED NR 1 FMS CDU, OP-CHECK GOOD PER CESSNA 750 MM CHAPTER 34-60-01.

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