# SDR ASAA2015030310841

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2015
- Submitted: March 5, 2015
- Operation: Air carrier
- Aircraft: [N413AS](https://openairdocs.org/aircraft/N413AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35205
- Aircraft time: 7,646 hours, 2,464 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Warning Flag
- Condition: Unknown
- Stage of operation: CR
- 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/ASAA2015030310841

## Discrepancy

LOSS OF ALL NAVIGATION AND PERFORMANCE DATA ALONG WITH VTK FLAG BOTH SIDES DURING CRUISE. FLAGS DISAPPEARED AFTER 1 MINUTE AND WE WERE ABLE TO ENTER ALL DATA WITH NORMAL FUNCTION.  ACFT GROUNDED. ACCOMPLISHED FIM 34-61, TASK 801.  NO CURRENT FAULTS NOTED.  NO HISTORY 30 DAYS.

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