# SDR ASAA2022010737093

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2022
- Submitted: January 11, 2022
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 56,422 hours, 16,908 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022010737093

## Discrepancy

TRANSITORY L FMC FAILURE FOR APPROXIMATELY 3 MIN. GROUNDED - YES. REF B737-800 FIM 34-61 TASK 801 FOUND WATCHDOG TIMER FAULT ON LEG 1 BOTH L AND R FMC LOGGED FAULT. PER FIM FAULT WAS INTERMITTENT FMC OPS TEST OK.

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