# SDR ASAA1058139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2010
- Submitted: August 9, 2010
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 5,547 hours, 1,649 cycles
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Cdu
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1058139

## Discrepancy

CAPTAINS CDU (ACFT LEFT) WENT BLANK 2 TIMES (DARK SCREEN NO PRESENTATION).  STAYED BLANK AT 5 SECONDS DISPLAYED "BIT TEST" IN YELLOW (+) ADDITIONAL DATA IN BLUE FOR LESS THAN A SECOND THEN RETURNED TO NORMAL DISPLAY.  THIS OCCURRED WHILE NO INPUT /EXECUTION BEING PERFORMED WITH EITHER CDU/FMC.  EXCEPT FOR THESE TRANSIENT EVENTS WORKED FINE.  PERFORMED FIM TASK 34 61 00 810 804 FOR CAPTS CDU NO FAULTS FOUND.  REPAIR CONFIRMATION SUCCESSFUL.  NO HISTORY SEAMC NOTIFIED.

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