# SDR ASAA2015071912502

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2015
- Submitted: July 21, 2015
- Operation: Air carrier
- Aircraft: [N477AS](https://openairdocs.org/aircraft/N477AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40716
- Aircraft time: 238 hours, 82 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Malfunctioned
- Location: Left
- Stage of operation: CR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015071912502

## Discrepancy

LEFT FMC FAILED ABOUT 1 HOUR INTO FLIGHT.  ACFT GROUNDED.  PERFORMED FIM 34-61, TASK 836, 1 CIRCUIT BREAKER CYCLED.  DUAL FMC, OPS RESTORED.  GROUND VERIFICATION TEST GOOD. NO HISTORY.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.