CNN CNN International March 26, 2015 07:36:00
The plane disappeared from french radar when it was at around 6,000 feet. investigators they the descent appeared controlled. >> the curve is compatible with an aircraft controlled by pilots, except for the fact that we can't imagine pilots consciously sending an aircraft into a mountain. but it may also be compatible with an aircraft which is controlled by an automatic pilot. >> reporter: finding the plane's second black box will be critical to unlock the mystery of what brought down the jet. on the flight data recorder, investigators will get a second-by-second breakdown. how the plane's sys...
Source: archive.org