She's trying to land the chopper safely, but the chopper doesn't land safely, and the reason it's not landing safely is because it's not responding to the commands that her legs are giving because her legs were blown off.
Elle a essayé de le faire atterrir proprement, mais elle n'a pas réussi, et ceci parce que l'hélicoptère ne réagissait pas aux commandes de ses jambes parce qu'elle avait perdu ses jambes.