Civil Aeronautics Board report summarizing their investigation and findings into the aviation accident.
Civil Aeronautics Board, US Department of Commerce
1966-06-27
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+769)">[1]</a>