# SDR ASAA2021031834334

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2021
- Submitted: March 22, 2021
- Operation: Air carrier
- Aircraft: [N435AS](https://openairdocs.org/aircraft/N435AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43292
- Aircraft time: 27,962 hours, 8,973 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Malfunctioned
- Location: First Officer'S
- Stage of operation: CR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021031834334

## Discrepancy

FO FMC WENT BLANK @2233Z FOR LESS THAN 10 SECONDS BEFORE RESTARTING. NO LINGERING EFFECTS NOTED. A/C IN CRUISE @ FL340. .79 MACH VMC. GROUNDED - YES. CONDUCTED FMC OPERATIONAL CHECK REF B737-900 FIM 34-61 TASK 836 ITEMS A-E. NO DISCREPANCY NOTED.

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