# SDR ASAA2019092330788

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2019
- Submitted: September 24, 2019
- Operation: Air carrier
- Aircraft: [N491AS](https://openairdocs.org/aircraft/N491AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44109
- Aircraft time: 15,507 hours, 5,054 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cockpit
- 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/ASAA2019092330788

## Discrepancy

F/OS MCDU LINE SELECT BUTTON 2L WORKS INTERMITTENTLY IT OFTEN TAKES 3 PUSHES TO WORK. GROUNDED - YES. RESET POWER PER AMM 20-60-99 OK FOR SERVICE.

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