The pilots failed Agree_or_refuse_to_act to switch Change_tool on the engines ' internal ice protection systems , used Using reverse thrust in a snowstorm prior to takeoff Self_motion , tried to use Using the jet exhaust of a plane in front of them to melt their ice , and failed Earnings_and_losses to abort Process_end the takeoff Motion even after detecting Check a power problem while taxiing and seeing Perception_active ice and snow buildup Cause_change_of_position_on_a_scale on the wings .

Yasi was also indirectly responsible for the death of a 23-year-old man , who died Death from suffocation by generator exhaust fumes .