# SDR G1IA20230429045

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2023
- Submitted: May 2, 2023
- Operation: Air carrier
- Aircraft: [N1079D](https://openairdocs.org/aircraft/N1079D), registered now
- Make and model: Beech C90A
- Registry model: [Beech C90A](https://openairdocs.org/model/beech-c90a) (OpenAirDocs)
- Aircraft serial: LJ1462
- Aircraft time: 9,574 hours, 11,785 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Dpu
- Part number: 6229682004
- Part serial: 230
- Condition: Failed
- Stage of operation: CR
- How discovered: O
- Nature of condition: I
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/G1IA20230429045

## Discrepancy

BOTH EFIS SCREENS FAILED IN FLIGHT AND DISPLAYED "DPU FAIL".

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