# SDR ASAA2017011019300

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2017
- Submitted: January 12, 2017
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 30,666 hours, 9,063 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Warning Message
- Condition: False Activation
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017011019300

## Discrepancy

F/O MCDU LOCKED UP WITH FLASHING "BUTTON PUSH IGNORED" MESSAGE IN SCRATCH PAD.  ACFT GROUNDED.  UNABLE TO DUPLICATE DEFECT, F/O'S GROUND VERIFICATION TEST PASSED, IAW AMM 34-61-01.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.