CNN The Lead With Jake Tapper March 25, 2014 20:21:00
Cockpit. turn backs because of that were fairly common because they are going to turn -- they are not going to diagnose it. they are going to start for the ground. so that's a challenge but i don't think it's an insurmountable challenge. perhaps they can be designed with very low voltages. >> the trouble is, you mentioned air france flight 447, one of the changes after that was that the pingers have to send out pings for more than 30 days and that plane went down -- what is it -- five years ago. even if a decision was made today, it might be a number of years before the 20,000 planes are are f...