Your interviewer is looking to gain some insight into your personal drive and desire for working as an Aircraft Mechanic to ensure that you will be motivated on the job at Air New Zealand. If they look to hire you for this role, they want to be ensured that you are dedicated to your craft and to the betterment of the team you will be joining. While certainly an open-ended question that allows you to really talk about where your passion lies within the field, be sure to display that passion to your interviewer as you answer this question.