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    Failing to Use All the Navigational Inputs At Your Disposal
    From: Bob Goethe
    Date: 2017 Jun 7, 16:47 -0700

    We have talked before about the importance of cross-checking your navigational data, generated by one method, with that generated by a different method.  Hence, when sailing you cross-check your GPS with celestial, or if you are near enough to shore, with your hand-bearing compass + radar + depth sounder.

    In the words of the NTSB:  the pilots were "not using all the instruments at their disposal to determine their location" and landed at Ellsworth Air Force Base, rather than Rapid City, South Dakoka - a mistake of 6 miles.  

    Source:  https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20160708X61700&AKey=1&RType=Final&IType=IA

    There is an illustration of the course followed at http://www.bbc.com/news/world-us-canada-40176462 

    Bob

       
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