# SDR ASAA2022011437169

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2022
- Submitted: January 19, 2022
- Operation: Air carrier
- Aircraft: [N494AS](https://openairdocs.org/aircraft/N494AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41729
- Aircraft time: 21,762 hours, 6,741 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Faulted
- Stage of operation: NR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022011437169

## Discrepancy

NO VSPEED AND LDG AIT FLAPS ON FO'S PFD. LNAV AND VNAV WON'T ENGAGE. GROUNDED - YES. PERFORMED OPS CHK ON FMC REF B737-900 AMM 34-61-04 OPS GOOD. OK FOR SVC.

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