# SDR ASAA2021021834151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2021
- Submitted: February 23, 2021
- Operation: Air carrier
- Aircraft: [N513AS](https://openairdocs.org/aircraft/N513AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35192
- Aircraft time: 44,421 hours, 13,144 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Location: Right
- Stage of operation: NR
- 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/ASAA2021021834151

## Discrepancy

3 SEPARATE OCCASIONS, FO NAV DISPLAY SHOWED MAP AND VTK WITH ASSOCIATED FMC ALERT LIGHT ILLUMINATION INDICATING RIGHT FMC FAILURE EACH TIME IT RESOLVED BEFORE ACCOMPLISHING, QRH.  GROUNDED - YES.  NR 2 FMC OPS NORMAL, COULD NOT DUPLICATE, NO HISTORY.

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