2014 Bedford Gulfstream IV crash
... that the National Transportation Safety Board concluded that the probable cause of the 2014 Bedford Gulfstream IV crash was the flight crew's failure to perform the flight-control check before takeoff?
... that the <a href="./National_Transportation_Safety_Board" id="mwBBo" rel="mw:WikiLink" title="National Transportation Safety Board">National Transportation Safety Board</a> concluded that the probable cause of the <b id="mwBBs"><a href="./2014_Bedford_Gulfstream_IV_crash" id="mwBBw" rel="mw:WikiLink" title="2014 Bedford Gulfstream IV crash">2014 Bedford Gulfstream<span id="mwBB0" typeof="mw:Entity"> </span>IV crash</a></b> was the flight crew's failure to perform the flight-control check before takeoff?