NTSB was initially established within the newly formed Department of Transportation (DOT) in 1966,5 but was made independent from DOT in 1974.6 NTSB is charged by Congress with investigating every civil aviation accident in the United States and significant accidents in other...
" The NTSB plays a vital role in transportation safety. It is charged with investigating all civil aviation accidents in the United States and selected accidents in other transportation modes, determining the probable cause of these accidents, and making appropriate recommendations,...