NEW : `` Too early to conclude pilot error , '' NTSB chief says . Then -- just 1.5 seconds before the plane slammed into the runway -- the crew decided to call off the landing and try to pull up for another try , Hersman said . The agency is also looking to see if the plane 's computer was handling landing . If it was, that would be a major setback for investigators trying to determine what caused the crash.
NEW : `` Too early to conclude pilot error , '' NTSB chief says . The agency is also looking to see if the plane 's computer was handling landing . If it was, that would be a major setback for investigators trying to determine what caused the crash.