# SDR ASAA2022112940966

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2022
- Submitted: November 30, 2022
- Operation: Air carrier
- Aircraft: [N937AK](https://openairdocs.org/aircraft/N937AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44100
- Aircraft time: 1,842 hours, 564 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Display
- Condition: Malfunctioned
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022112940966

## Discrepancy

IN CRUISE BOTH INBOARD CDU'S BLANKED W/ VTK ON THE CA SIDE. MCDU/CDU BOTH BLANKED WITH MENU PAGE DISPLAY ALL ITEMS (ACARS, ACMS, SAT, HGS) BUT NO FMC. NO MESSAGE DISPLAYED IN SCRATCH PAD. FMC RETURNED TO NORMAL IN 30-45 SECONDS. GROUNDED - YES. RESET BOTH FMC'S, OPS CHECK GOOD IAW B737-9 FIM TASK 34-61-00-810-918.

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