# SDR ASAA2017031520183

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2017
- Submitted: March 17, 2017
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 31,297 hours, 9,275 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Cdu
- Part number: 1741010201
- Part serial: 005762
- Condition: Failed
- Location: First Officer'S
- Part time: 36,128 hours, 10,631 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017031520183

## Discrepancy

F/O MCDU DOES NOT RESPOND TO KEY INPUTS. ACFT GROUNDED. REMOVED & REPLACED THE FO'S MCDU IAW AMM 34-36-01. OPS NORMAL.

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