# SDR ASAA2018050124447

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2018
- Submitted: May 1, 2018
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 17,074 hours, 5,664 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: DE
- 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/ASAA2018050124447

## Discrepancy

FMC MESSAGE VTRK DISAGREE FOR ABOUT 5 SECONDS. CLEARED ITSELF. NO OTHER UNUSUAL INDICATIONS. MESSAGE ON BOTH SCRATCHPADS.  ACFT GROUNDED.

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