# SDR ASAA2022012337230

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2022
- Submitted: January 26, 2022
- Operation: Air carrier
- Aircraft: [N570AS](https://openairdocs.org/aircraft/N570AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35185
- Aircraft time: 54,721 hours, 16,341 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762000101
- Part serial: 006670
- Condition: Failed
- Location: Ee Rack, E5
- Part time: 35,020 hours, 10,986 cycles
- 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/ASAA2022012337230

## Discrepancy

RIGHT FMC FAILED AT CRUISE ALT 350. FMC P/RST AMBER LIGHT BLINKING ON AND OFF. PER CHECKLIST, WENT TO SINGLE FMC OPS. EVENTUALLY THE RIGHT FMC RETURNED TO NORMAL. GROUNDED - YES.  REMOVED AND REPLACED RH FMC COMPUTER PER B737-800 AMM 34-61-02-400-801 OPERATIONAL BITE TEST & CROSS LOAD OK PER AMM 34-60-00-710-701.

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