<p>WASHINGTON (CNN) --Four people were killed when a small plane crashed on takeoff from Greensburg Jeannette Regional Airport in Greensburg, Pennsylvania, Sunday afternoon, authorities said.</p>
<p>The plane, a Cessna 205, took off at 1:15 p.m. for a skydiving operation, said Arlene Salac, a spokeswoman for the Federal Aviation Administration's Eastern Region.</p>