# SDR ASAA2012112193355

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2012
- Submitted: November 27, 2012
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 17,037 hours, 5,440 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Display
- Part number: 1741010201
- Part serial: 006023
- Condition: Failed
- Location: Cockpit
- Part time: 17,755 hours, 5,645 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012112193355

## Discrepancy

FMC LETTER C DOES NOT WORK.  REPLACED NR 2 MCDU OPS CK GOOD REF MM 34-61-01.

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