As a part of Air New Zealand's cargo operations team, you will be working with many different pieces of mechanical equipment and your success in this role will require you to have some knowledge of the ins and outs of mechanical repair and troubleshooting. As you rate yourself, talk about any experience you have working on mechanical issues in vehicles or other mechanical equipment to prove your ability to learn this aspect of the job quickly. Any way you answer, try to impose your confidence in this area to your interviewer and show a willingness to learn more in this job.