Civil Aeronautics Board report into the crash of Northeast Airlines Flight 801 on 14 January 1952.
Civil Aeronautics Board, US Department of Commerce
1952-11-18
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+512)">[1]</a>