# SDR ASAA0853530

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2008
- Submitted: September 30, 2008
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 7,944 hours, 2,385 cycles
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Cdu
- Part number: 1741010201
- Part serial: 4756
- Condition: Faulty
- Location: Cockpit
- Part time: 7,944 hours, 2,385 cycles
- Stage of operation: UK
- 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/ASAA0853530

## Discrepancy

FIRST OFFICER MCDU TACTILE FEEDBACK ON LINE SELECT KEYS 1L 2L 5L 6L AND 6R IS INOP.  VERFIED PROBLEM.  REPLACED F/O'S FMS MCDU PART VERIFIED.  ALSO REF MM 34 61 01 000 802 & 400 802 FOR REMOVE AND REPLACE & GND VERIFICATION TEST.  OPS NML.

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