# SDR ASAA2015100713398

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2015
- Submitted: October 9, 2015
- Operation: Air carrier
- Aircraft: [N407AS](https://openairdocs.org/aircraft/N407AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41731
- Aircraft time: 11,492 hours, 3,651 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Warning Flag
- Condition: False Indication
- Location: Fmc
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015100713398

## Discrepancy

AT CRUISE, FL 350, VTK FOLLOWED BY MAP FAILURE FLAG ON CAPTAIN'S NAV DISPLAY.  VNAV, LNAV DISCONNECTED.  PRIOR TO COMMENCING CHECKLIST, PROBLEM RESOLVED ITSELF AND SHOWED OPS NORMAL.  ACFT GROUNDED.  ACCOMPLISHED FIM TASK 34-61, TASK 801, NO FAULTS NOTED. CHECKS OK REF SAME.

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