The majority of the previous 13 flights had also entered this flight plan's coordinates into their aircraft navigational systems and flown the McMurdo Sound route, unaware that the route flown did not correspond with the approved route.
A meirande parte dos anteriores 13 voos tamén introduciran esas coordenadas de plan de voo nos sistemas de navegación do avión e ralizaran a ruta do estreito de McMurdo, sen decatarse de que a ruta voada non se correspondía coa ruta aprobada.