NTSB report into the crash of a LearJet owned by Paul Kelly Flying Service on 14 November 1965.
National Transportation Safety Board (NTSB)
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+789)">[1]</a>