# SDR ASAA11510146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2011
- Submitted: July 22, 2011
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 13,774 hours, 4,393 cycles
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Display
- Part number: 1741010201
- Part serial: 4756
- Condition: Malfunctioned
- Location: Cockpit
- Part time: 17,465 hours, 5,409 cycles
- 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/ASAA11510146

## Discrepancy

CAPTAINS CDU HAS CYCLED FROM BLANK SCREEN BITE TEST AND NORMAL OPERATION MULTIPLE TIMES.  COULD NOT DUPLICATE DEFECT.  FMCS INFLT REVIEW SHOWS L/H CDU FAULTS LAST 2 FLT LEGS.  PRECAUTIONARY REPLACED LT CDU REF MM: 34 61 01, OPS CHECK NML.

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