# SDR 2019FA0000177

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2019
- Submitted: June 7, 2019
- Operation: General aviation
- Make and model: Boeing 737-37Q
- Registry model: [Boeing 737-37Q](https://openairdocs.org/model/boeing-737-37q) (OpenAirDocs)
- Aircraft serial: 28548
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Cdu
- Condition: Failed
- Stage of operation: CR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2019FA0000177

## Discrepancy

BOTH CDU FAILED. QRF TO VVI.  AFTER TROUBLESHOOTING IN FMCS BOTH CDU WERE CLEANED. OPERATIONAL CHECK OK.

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