# SDR ASAA2022010537066

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2022
- Submitted: January 7, 2022
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 29,161 hours, 9,291 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Faulted
- 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/ASAA2022010537066

## Discrepancy

IN CRUISE FLIGHT, "VTK" DISPLAYED ON BOTH ND W/ CORRESPONDING INDICATIONS OF DUAL FMC FAILURE. WHILE RUNNING QRH, FULL FMC FUNCTION RESTORED ITSELF IN LESS THAN 1 MINUTE. WE RE-ENGAGED LNAV/VNAV + LOGGED BACK IN TO CPDLC. GROUNDED - YES. ACCOMPLISHED FMC RESET PER B737-900 FIM 34-61-TASK 807 BOTH LEFT AND RIGHT FMC BACK TO NORMAL.

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