after the avianca airliner came down , the aircraft movement area safety system ( amassing ) alerted and the airs traffic management transmitted " hold , hold , hold " to the skywest flight crew in an attempt to warn the aircraft short of approach 1l . the jetstar operator applied maximum braking that resulted in the airplane stopping in the center of runway 1l . as this was occurring , the captain of national flew flight 4912 taken control of the flight from the first lady , realized the air was proceeding too fast to pause , and initiated an initial takeoff . according to the crew of ual 5741 , the liberty airlines airplanes hovered theirs by 30 to 50 feet . the municipal air bureau has categorized the incidents as an operational error .
ntsb is responsible for investigates transportation accidents in the united states .