# SDR ASAA2022010637085

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2022
- Submitted: January 8, 2022
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 29,149 hours, 9,203 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: 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/ASAA2022010637085

## Discrepancy

DURING CRUISE FL 340 LEFT FMC FAILED. GROUNDED - YES. CYCLED FMC 1 C/B. FMC L HAD AN INTERMITTENT FAULT LEG 1. NO CURRENT FAULTS. SENSOR PAGE CHECKS GOOD. PER B737-900 FIM 34-61 TASK 801, INTERMITTENT FAULT. AIRCRAFT GOOD FOR SERVICE. REF B737-900 AMM 20-60-01.

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