# SDR ASAA2021041634599

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2021
- Submitted: April 19, 2021
- Operation: Air carrier
- Aircraft: [N491AS](https://openairdocs.org/aircraft/N491AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44109
- Aircraft time: 20,343 hours, 6,509 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Location: Left
- Stage of operation: CL
- 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/ASAA2021041634599

## Discrepancy

LEFT FMC FAILED MOMENTARILY ON CLIMBOUT. NORMAL OPERATION RESTORED IN APPROXIMATELY 60 SECONDS. NOTE. VTK AND MAP DISPLAYED ON CAPTAIN'S NAV DISPLAY. GROUNDED - YES. REF B737-900 FIM 34-61 TASK 801 OPS RESTORED OK FOR SERVICE.

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