# SDR ASAA2022051938412

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2022
- Submitted: May 24, 2022
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 51,394 hours, 15,250 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Switch
- Part number: UNKNOWN
- Condition: Out Of Position
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022051938412

## Discrepancy

TEN MINUTES PRIOR TO DESCENT RIGHT FMC FAILED, RAN QRH AND COULD NOT RESTORE NORMAL OPERATION. GROUNDED - YES. REPOSITION FMC SWITCH TO NORMAL POSITION, B737-800 FIM 34-61 TASK 801 SHOW FMCS FLT LEG 1 SHOWS PRES POS LAT, ADIRS NO FAULTS FIM 34-21 TASK 801, FMCS TEST GOOD B737-800 AMM 34-61-00.

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