# SDR ASAA2022090839883

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2022
- Submitted: September 9, 2022
- Operation: Air carrier
- Aircraft: [N479AS](https://openairdocs.org/aircraft/N479AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 60576
- Aircraft time: 25,464 hours, 7,945 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Cdu
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022090839883

## Discrepancy

AT CRUSIE FL 360 BOTH CDU'S DISPLAYED MENU PAGE W/NO FMC PROMPT. VTK FLAG ON CA ND. SYSTEM REST W/IN 30 SEC BEFORE CHECKLIST INITIATED. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 34-61 TASK 836, OPS NML.

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