# SDR ASAA2021091635959

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2021
- Submitted: September 17, 2021
- Operation: Air carrier
- Aircraft: [N423AS](https://openairdocs.org/aircraft/N423AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35206
- Aircraft time: 30,462 hours, 9,785 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Location: First Officer'S
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021091635959

## Discrepancy

ENROUTE F/O'S FMC FAILED ,VTK APPEARED AND LASTED APPROX 30 SECONDS FMC REBOOTED. AFTER LANDING FMC DISAGREE LIGHT ILLUMINATED TWICE. GROUNDED - YES. NO HISTORY, PERFORMED B737-900 FIM 34-61 TASK 836 F/O'S FMC RETURNED TO NORMAL OK FOR SERVICE SEAMC ROWEN CONSULTED.

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