Civil Aeronautics Board report into the incident involving Pan American Flight 203 on 3 October 1941.
Civil Aeronautics Board, US Department of Commerce
1942-01-16
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+113)">[1]</a>