# SDR ASAA2013061595102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2013
- Submitted: June 18, 2013
- Operation: Air carrier
- Aircraft: [N407AS](https://openairdocs.org/aircraft/N407AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41731
- Aircraft time: 1,982 hours, 644 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Unknown
- Condition: Unknown
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013061595102

## Discrepancy

VTK DISPLAYED AND LOSS OF ALL INFO ON FOS NAV DISPLAY.  RESTORED TO NORMAL IN APPROX 10 SECONDS.  ACFT GROUNDED.  ACCOMPLISHED DFCS BITE TESTS 10, 20 , 58 & 49.  ALL TESTS PASSED.  AC REMAINS CATIIIA AUTOLAND  QUALIFIED.  VERIFIED LWMP PLACARD STATUS SCREW REFLECTS SAME REF AMM 22-00-01-730-801.

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