If you have enough information (as is found in a bibliographic citation) to identify an article, follow these steps to obtain the full text.
Transportation Safety Board of Canada—Information and reports on transportation safety in Canada, including transportation disasters.
National Transportation Safety Board (US)—Information and reports on transportation safety in the United States, including transportation disasters.
NASA Technical Reports Server—Articles and reports relating to NASA's discoveries, research, and activities, including reports of accident investigations.
You can start searching for articles quickly using Quick Find. You will retrieve articles and books, and you can limit your results to only articles (or only peer-reviewed articles) if you prefer. A listing of recommended databases that contain material about Engineering is here. Below are some general and Engineering specific databases.