# SDR ASAA2017072421452

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2017
- Submitted: July 25, 2017
- Operation: Air carrier
- Aircraft: [N529AS](https://openairdocs.org/aircraft/N529AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35198
- Aircraft time: 28,553 hours, 8,543 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: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017072421452

## Discrepancy

LEFT FMC FAILED AT FL340 LEVEL FLIGHT, VTK DISPLAYED ON CA ND NO FMC PROMPT ON MCDU.  SYSTEM FULLY RECOVERD AFTER 30 SECONDS.  ACFT GROUNDED. FIM 34-60 TASKS 801 & 837 APPEARS TO HAVE BEEN AN INTERMITTENT FAULT FMC OPERATIONAL TEST IAW AMM 34-61-00 NORMAL HAS NO OTHER RECENT HISTORY.

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