# SDR ASAA2015102813544

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2015
- Submitted: October 30, 2015
- Operation: Air carrier
- Aircraft: [N514AS](https://openairdocs.org/aircraft/N514AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35193
- Aircraft time: 27,096 hours, 8,240 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Warning Message
- Condition: False Activation
- Location: Fmc
- Stage of operation: TX
- 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/ASAA2015102813544

## Discrepancy

FMC DISAGREE APPEARED ON THE MCDU SCRATCHPAD DURING TAXI FOR TAKEOFF.  THERE HAD BEEN A 60+ SECOND POWER INTERRUPTION AT THE GATE DURING BOARDING WHEN GROUND PERSONNEL PULLED GROUND POWER WITHOUT AUTHORIZATION.  ACFT GROUNDED.  FOLLOWED QRH FOR FMC DISAGREE ON THE GROUND DUAL FMC OPERATION RESTORED.

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