# SDR ASAA2020102333408

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2020
- Submitted: October 26, 2020
- Operation: Air carrier
- Aircraft: [N433AS](https://openairdocs.org/aircraft/N433AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41704
- Aircraft time: 26,946 hours, 8,606 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Malfunctioned
- Location: Captain'S
- Stage of operation: DE
- 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/ASAA2020102333408

## Discrepancy

PRIOR TO TOP OF DESCENT CAPTAIN'S FMC DISPLAY WENT BLACK.  FMC DATA DID A BITE TEST.  FMC SCREEN RETURNED TO NORMAL OPERATIONS.  GROUNDED-YES.  ACCOMPLISHED FMCS BITE PROCEDURE B737-900 FIM 34-61 TASK 801, NO FAULTS FOUND, OPERATIONS CHECK NORMAL.

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