Civil Aeronautics Board report into the crash of a TWA Boeing on 17 May 1940.
Civil Aeronautics Board, US Department of Commerce
after 1940 <div style="display: none;">date QS:P,+1940-00-00T00:00:00Z/7,P1319,+1940-00-00T00:00:00Z/9</div>
US Department of Transportation Special Collections <a rel="nofollow" class="external autonumber" href="http://specialcollection.dotlibrary.dot.gov/Document?db=DOT-AIRPLANEACCIDENTS&amp;query=(select+89)">[1]</a>