Популярні відео - Катастрофа A320 у Французьких Альпах і Пасажирський літак
Image copyright AFP Image Caption Germanwings co-pilot Andreas Lubitz is known to have suffered from depression in the past.
The co-pilot of the plane that crashed Germanwings in the French Alps in March appears to have practiced a rapid descent on a previous flight, a report by French investigators said.
The report said Andreas Lubitz established a plane for an unauthorized raid earlier that day.
Lubitz is suspected of deliberately running the Airbus 320, killing all 150 people on board.
He locked the captain out of the cockpit.
Lubitz appears to have practiced programming a rapid descent on the outbound leg of flight - from Duesseldorf to Barcelona on March 24 - the preliminary report by the agency BEA accident investigation said.
He said repeatedly - again with the captain out of the cockpit - the dial altitude was set at 100 feet 30 m, reading as low as possible, despite the control instructions air traffic in Bordeaux to put to 35,000ft and 21,000ft.
It has also been reset once to 49,000ft, the maximum altitude.
The changes apparently occurred about five minutes to about 30 July from 30 seconds after the captain left the cockpit.
Analysis Richard Westcott BBC transport correspondent.
When you hear that Lubitz was feeding in extreme altitude settings from 100 feet to 49,000ft, you can have a picture of the plane zigzag up and down, as he pushes and pulls on the joystick.
How then could the captain and rear passengers do not notice that something was wrong.
Well, it doesn not work like that any Lubitz would be twisted a dial on a computer in front of him.
The drivers say turn right quickly dial it wouldn t have brought dramatic changes on board In fact, the plane would have just kept down as instructed by the air traffic control.
This why the other driver didn t notice and Lufthansa said earlier that it was the same with Lubitz pilot flying on the aircraft, he later decided to crash Obviously, he didn t notice something strange about the behavior of his colleague.
I can not speculate on what was going on in his head - all I can say is that he has changed the button to the minimum setting of 100 feet and it has done repeatedly, director of BEA Remi Jouty told Reuters news agency.
It was on the return leg on the same day - from Barcelona to Duesseldorf - the fatal accident occurred.
Five minutes on the flight out of Dusseldorf-Barcelona.
19 July 59 - sounds corresponding to the captain leaving the cockpit.
20 July 29 - Stretch said by air traffic control to descend to 35,000ft.
20 July 50 - The selected altitude changed to 100 feet, rose to 49,000ft to 35,000ft then returned.
22 July 27 - Selected changes in altitude to 100 feet repeatedly.
24 July 29 - Noise corresponding to the return of captain in the cockpit.
The co-pilot is known to have suffered from depression in the past month past German prosecutors revealed that Lubitz had researched suicide methods and security cockpit doors.
Lufthansa, Germanwings parent company, twice refused to renew his medical certificate in 2009 because of depression, the preliminary report of the BEA said.
When it was revalidated, a note was attached requiring aeromedical doctors to contact the driver licensing authority before renewal.
The BEA report also describes in more detail what happened on board in the minutes before the accident.
The flight data recorder suggests Lubitz, 27, from 273 knots speed the plane h 505 km to 345 knots 314 mph on his descent.
On 14 occasions, the air traffic control and air defense French tried to contact the plane.
The intercom in the cabin, knocking on the cockpit door and then sounds similar to violent blows are heard on the voice recorder as captain tries to re-enter the cockpit.
BEA is expected to publish its final report in a year, focusing on systemic failures and security of the cockpit.
Copilot Lubitz Germanwings crash practiced rapid descent BBC News, Berlin, accident, Lubitz, practice.