# SDR ASAA2020100733299

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2020
- Submitted: October 9, 2020
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 25,053 hours, 7,991 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Malfunctioned
- Location: Left
- 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/ASAA2020100733299

## Discrepancy

LT FMC FAILED, VTK AND MAP DISPLAYED ON CAPT SIDE WITH LOSS OF NAV DATA.   GROUNDED-YES.  LT FMC LOGGED "B" FAULT LAST LEG, SYSTEM OPERATIONS OK.

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