A <a href="https://en.wikipedia.org/wiki/Convair_CV-240_family" id="mw9A" rel="mw:WikiLink" title="Convair CV-240 family">Convair CV-580</a> and <a href="https://en.wikipedia.org/wiki/De_Havilland_Canada_DHC-6_Twin_Otter" id="mw9Q" rel="mw:WikiLink" title="De Havilland Canada DHC-6 Twin Otter">De Havilland Canada DHC-6 Twin Otter</a> <a href="https://en.wikipedia.org/wiki/1972_Lake_Winnebago_mid-air_collision" id="mw9g" rel="mw:WikiLink" title="1972 Lake Winnebago mid-air collision">collide</a> above <a href="https://en.wikipedia.org/wiki/Lake_Winnebago" id="mw9w" rel="mw:WikiLink" title="Lake Winnebago">Lake Winnebago</a> near <a href="https://en.wikipedia.org/wiki/Appleton,_Wisconsin" id="mw-A" rel="mw:WikiLink" title="Appleton, Wisconsin">Appleton, Wisconsin</a>, killing 13.<sup about="#mwt79" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-14"}}' id="cite_ref-14" rel="dc:references" typeof="mw:Extension/ref"><a href="./June_29#cite_note-14" id="mw-Q" style="counter-reset: mw-Ref 14;"><span class="mw-reflink-text" id="mw-g">[14]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-14"><cite about="#mwt76" class="citation web cs1" id="CITEREFRanter">Ranter, Harro. <a class="external text" href="https://aviation-safety.net/database/record.php?id=19720629-1" id="mwBzQ" rel="mw:ExtLink nofollow">"ASN Aircraft accident Convair CV-580 N90858 Appleton, WI"</a>. <i id="mwBzU">aviation-safety.net</i>. <a class="mw-redirect" href="./Aviation_Safety_Network" id="mwBzY" rel="mw:WikiLink" title="Aviation Safety Network">Aviation Safety Network</a><span class="reference-accessdate" id="mwBzc">. Retrieved <span class="nowrap" id="mwBzg">2021-06-29</span></span>.</cite><span about="#mwt76" class="Z3988" id="mwBzk" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=aviation-safety.net&amp;rft.atitle=ASN+Aircraft+accident+Convair+CV-580+N90858+Appleton%2C+WI&amp;rft.aulast=Ranter&amp;rft.aufirst=Harro&amp;rft_id=https%3A%2F%2Faviation-safety.net%2Fdatabase%2Frecord.php%3Fid%3D19720629-1&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJune+29"></span></span>