It has emerged that one of the pilots flying the German Wings Airbus Jet was locked out of the cockpit and could be heard trying to smash the door down.
Four specialists from Interpol and French detectives are trying to work out why one of the pilots locked himself in the cockpit.
The two pilots on board can be heard shouting at each other in German before the one outside tried to smash the door down.
The Captain had 6000 flying hours while the co-pilot joined Germanwings in 2013 and had only 600 flying hours.
Its not known which of the pilots was outside and which was inside.
With this revelations suspicions are rife to whether there was a rogue pilot who deliberately flew the plane into the French Alps and killed everyone and a terrorist theory is also being considered.
However investigations continue by a team of experts from Interpol and French detectives.
