 In July 2007 , a flying instructor for Comair testified that he would have failed both pilots for violating Sterile Cockpit Rules . Later the same month , the NTSB released its final report into the accident , citing this " non @-@ pertinent conversation " as a contributing factor in the accident . 
 In July 2007 , a flying instructor for Comair testified that he would <a href='been_done' title='1'><mark>have</mark></a> failed both pilots for violating Sterile Cockpit Rules . Later the same month , the NTSB<a href='been_done' title='2'><mark></mark></a> released its final report into the accident , citing this " non @-@ pertinent conversation " as a contributing factor in the accident . 
In July 2007 , a flying instructor fir Comair testified that he would done failed both pilots for violating Sterile Cockpit Rules . Later da same month , the NTSB been released its final report into the accident , citing dis " non @-@ pertinent conversation " as a contributing factor in the accident .