CNN Smerconish April 4, 2014 04:29:00
Turned off first. >> this line represents the plane's altitude. if flight mh-370 suddenly fell to a lower altitude here is where we would see a change. if someone deliberately alterred the path we would see the line dip or rise. >> one of the things people will be looking at is who is in control of the aircraft. when we look at the data from the flight data recorder you can see if inputs were coming from auto pilot or left seat or right seat. >> reporter: technicians can pin point where the plane was located at any point during flight. although memory chips are rarely damaged airlines need to ...