# SDR ASAA2022022037507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2022
- Submitted: February 23, 2022
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 57,627 hours, 16,724 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022022037507

## Discrepancy

UPON REACHING CRZ ALT, R-FMC FAILED (VTK, NO MAP INFO). COMPLIED WITH FMC FAIL QRH. DUAL FMC OPS RESTORED. OPS NORMAL. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 836. CYCLED FMC'S C/B'S . NO DEFECTS NOTED.

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