# SDR ASAA2021070335241

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2021
- Submitted: July 7, 2021
- Operation: Air carrier
- Aircraft: [N431AS](https://openairdocs.org/aircraft/N431AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43255
- Aircraft time: 28,479 hours, 9,171 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Faulted
- Location: First Officer'S
- Stage of operation: NR
- 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/ASAA2021070335241

## Discrepancy

DURING LATERAL OFFSET TO AVOID WEATHER, FIRST OFFICER'S MAP DISPLAY VTK AND SCRATCHPAD INDICATED SINGLE FMC OPERATION. FOLLOWED QRC AND RELOAD DUAL FMC OPERATION. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 836 RESET C/B 6D16 AND 18A6. SYSTEM OPS CHECK OK.

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