CNN CNN Newsroom April 14, 2014 14:44:00
Know that we have a high degree of certainty that the data being recorded is reasonable. >> so there are two black boxes. tell us what information comes out of each. >> sure. there's two black boxes, the flight data recorder and the cockpit voice recorder. the cockpit voice recorder records the audio. there's four channels, one channel for each of the pilot's headset. then in this case a very important area mic. the area mic is crucial because it will allow investigators to hear what was being said in the cockpit when there was no communication going back and forth between the towers which we ...