# SDR ASAA2022082939748

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2022
- Submitted: September 1, 2022
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737
- Aircraft serial: 36482
- Aircraft time: 49,320 hours, 14,489 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: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022082939748

## Discrepancy

AT FL 370 JUST PRIOR TO DESCENT, L FMC FAILED 3 TIMES IN 2 MINUTES. VTK, MAP AND BOTH FMC PROMPTS ERASED. NORMAL OPS RESTORED EACH TIMES WITH NO PILOT ACTION. NOTE: APPROACH WAS NOT LOADED UNTIL DESCENT WINDS WERE EXECUTED. GROUNDED - YES. REF B737-800 FIM 34-61 TASK 836. RESET BOTH FMC'S OPS CHECK NORMAL.

---
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.