Fox sat in a precarious eighth position following her first of two runs .
Fox qualified for the semi-finals on Friday morning ( AEST ) after an authoritative second and final run which catapulted her out of elimination danger with the second fastest time of the day .
Sitting in a precarious eighth position following her first of two runs , Fox qualified for the semi-finals on Friday morning ( AEST ) after an authoritative second and final run which catapulted her out of elimination danger with the second fastest time of the day .