# SDR ASAA2020110633510

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2020
- Submitted: November 10, 2020
- Operation: Air carrier
- Aircraft: [N469AS](https://openairdocs.org/aircraft/N469AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41702
- Aircraft time: 23,969 hours, 7,733 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Warning Message
- Condition: False Indication
- Location: Fmc
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020110633510

## Discrepancy

BOTH FMC'S SCRATCHPAD MESSAGE 'FMC VERTICAL DISAGREE" ANNUNCIATED MULTIPLE TIMES BELOW 8000'.  GROUNDED-YES.  LT AND RT FMC'S LOGGED FCC DATA-SYNC ERROR PERFORMED B737-900 FIM 34-61 TASK 835 LT AND RT FMC'S OPERATIONS NORMAL SEAMC STEVE CONSULTED.

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