# SDR ASAA2022041337979

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2022
- Submitted: April 14, 2022
- Operation: Air carrier
- Aircraft: [N971AK](https://openairdocs.org/aircraft/N971AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43339
- Aircraft time: 562 hours, 173 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: UNKNOWN
- Condition: Faulty
- 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/ASAA2022041337979

## Discrepancy

2 PLUS 40 INTO FLIGHT AT FL340 BOTH FMC'S FAILED CRUISE FL340 FOR 30-45 SECONDS. THEY BOTH RE-BOOTED WITHOUT ANY PILOT INTERACTION AND OPERATED NORMALLY. GROUNDED - YES. NO ACTIVE FMC FAULTS. FMC FLT HISTORY ONLY SHOWING RH FMC FAULT ON LAST LEG. CYCLED RH FMC AND LH FMC C/B, FMC'S OPS NORMAL PER B737-9 AMM 34-61-00.

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