# SDR ASAA2019072030122

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2019
- Submitted: July 22, 2019
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 29,111 hours, 8,358 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019072030122

## Discrepancy

ON THE GROUND F/O'S NAV DISPLAY SHOWS VTK ALONG WITH BOTH FMC P/RST. CYCLED ON AND OFF SEVERAL TIMES. GROUNDED - YES. PERFORMED FIM TASK 34-61 AND SUSPECT A NUISANCE ERROR AS PER AMM 34-61-00-860-801, CYCLED POWER PER AMM 20-60-99-760-001, NO FAULTS NOTED A/C IS OK FOR SERVICE.

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