<a href="https://en.wikipedia.org/wiki/Aeroflot_Flight_6551" id="mwiQ" rel="mw:WikiLink" title="Aeroflot Flight 6551">Aeroflot Flight 6551</a> crashes in <a href="https://en.wikipedia.org/wiki/Semey" id="mwig" rel="mw:WikiLink" title="Semey">Semey</a>, <a href="https://en.wikipedia.org/wiki/Kazakh_Soviet_Socialist_Republic" id="mwiw" rel="mw:WikiLink" title="Kazakh Soviet Socialist Republic">Kazakh Soviet Socialist Republic</a> (now <a href="https://en.wikipedia.org/wiki/Kazakhstan" id="mwjA" rel="mw:WikiLink" title="Kazakhstan">Kazakhstan</a>), killing all 63 aboard.<sup about="#mwt113" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-18"}}' id="cite_ref-18" rel="dc:references" typeof="mw:Extension/ref"><a href="./May_11#cite_note-18" id="mwjQ" style="counter-reset: mw-Ref 18;"><span class="mw-reflink-text" id="mwjg">[18]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-18"><cite about="#mwt110" class="citation web cs1" id="mwBZM"><a class="external text" href="https://aviation-safety.net/database/record.php?id=19730511-0" id="mwBZQ" rel="mw:ExtLink nofollow">"ASN Aircraft accident Ilyushin 18B CCCP-75687 Semipalatinsk"</a>. <i id="mwBZU">Aviation Safety Network</i><span class="reference-accessdate" id="mwBZY">. Retrieved <span class="nowrap" id="mwBZc">2017-12-29</span></span>.</cite><span about="#mwt110" class="Z3988" id="mwBZg" 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+Network&amp;rft.atitle=ASN+Aircraft+accident+Ilyushin+18B+CCCP-75687+Semipalatinsk&amp;rft_id=https%3A%2F%2Faviation-safety.net%2Fdatabase%2Frecord.php%3Fid%3D19730511-0&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMay+11"></span></span>