Boeing 757-200, registration N591UA, three days before it was hijacked as <a href="https://en.wikipedia.org/wiki/United_Airlines_Flight_93" class="extiw" title="w:United Airlines Flight 93">United Airlines Flight 93</a> in the <a href="//commons.wikimedia.org/wiki/September_11,_2001_attacks" class="mw-redirect" title="September 11, 2001 attacks">September 11, 2001 attacks</a>.
<a href="//commons.wikimedia.org/wiki/User:MacMax" title="User:MacMax">MacMax</a>
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<span class="int-own-work" lang="en">Own work</span>