Aviation accident investigation jobs determine the cause of a plane crash and how to prevent future incidents. Members of the National Transportation Safety Board (NTSB) arrive on the scene after an accident to investigate crash sites and plane wreckage. In this role, you secure the scene to prevent further injury or accident, collect evidence from the site, interview witnesses and victims, review flight history, and look at plane data to determine additional details about each crash. Your responsibilities may include working outdoors in extreme conditions. Aviation accident investigation positions typically collaborate with law enforcement officials, airport authorities, and medical professionals involved in the case.