spatial disorientation
...that an amateur airplane pilot's spatial disorientation during flight can lead to an irreversible graveyard spiral?
...that an amateur airplane pilot's <b id="mwATc"><a href="./Spatial_disorientation" id="mwATg" rel="mw:WikiLink" title="Spatial disorientation">spatial disorientation</a></b> during flight can lead to an irreversible graveyard spiral?