AirAsia Flight's Radar Data Tells Frightening Story

Indonesia's transportation minister reports the plane was climbing at least 3 times faster than normal.
1:50 | 01/21/15

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Transcript for AirAsia Flight's Radar Data Tells Frightening Story
The latest on the final moments of airasia flight 8501. The investigation now revealing the plane made a sudden steep climb before stalling and plunging into the java sea. ABC's David Kerley is in Washington with the latest on that. Good morning. Reporter: Good morning. This isur first official solid indication of what happened to that airasia flight. But there are still many questions. They have pulled up the tail, the black boxes and found the fuselage but it is the radar data that the transportation minister now says it was climbing too fast a rate, stalled and then plunged into the java sea. The pilots encountered severe weather and wanted to climb but approval was delayed. The Indonesians say the jet started climbing at a rate of 6,000 feet a minute, that is at least three times faster than a Normal ascent. For the passengers the g-forces necessary to get that airplane into a precipitous climb would be very scary. Reporter: Climbing that fast means forward air speed is lost, the wings lose their ability to lift the plane so it stalls and starts falling to Earth. When an airplane stalls it can end up spinning and that spin may be unrecoverable. Reporter: Well, it's been a week now since the Indonesians recovered the black boxes and have yet to release specific data. The cockpit recorder does show there were no other voices in the cockpit or threats ruling out terrorism and no indication of a bomb. Now, the Indonesians are required to file a 30-day report. That's next week but this morning they are saying they will not make that public. Safety experts are getting concerned about the secrecy and what they see as a conflict of interest in this investigation, robin. Many are concerned about that. David, thank you.

This transcript has been automatically generated and may not be 100% accurate.

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