The desperate captain of the Germanwings plane yelled 'open this f***ing door' and tried to use a crowbar hidden in the back of the plane to force his way into the cockpit during its terrifying descent, new reports suggest.

But as heroic pilot Patrick Sondenheimer tried to break in, his co-pilot Andreas Lubitz had put on an oxygen mask and was calmly directing the Airbus A320 into the French Alps.

Distressing new details about exactly what happened on board have been published by French magazine ParisMatch which claims to have been given a full account of the flight data recording by an investgiator.

According to their transcript, the events unfolded as follows:

10:00 am

Flight 4U9525 takes off from Barcelona to Dusseldorf following a delay

10:10

The Captain says to co-pilot Andreas Lubitz: "I didn’t have time to use the bathroom before taking off."

Lubitz replies: "Go whenever you’d like."

10:27

The plane reaches cruising altitude at 38,000 feet

The captain asks Lubitz to prepare the approach for landing. Lubitz follows order and then repeats to the captain again: "You can go. You can go now."

10:28

Noise can be heard coming from a seat. The captain removes his seatbelt. The cockpit door is opened. The captain says to Lubitz: "You are in control now."

Lubitz, in a 'light tone of voice', replies: "I hope so."

10:30

Lubitz is alone in the cockpit. He locks the armoured door with the “Lock” button and it's no longer possible to open the door from the outside.

The automatic pilot is reprogrammed to accelerate the plane's descent.

10:33

The descent begins. The plane drops 3,000 feet per minute. Air traffic controllers detect the problem. They try several times to contact the airplane by radio. Lubitz does not respond.

The captain's voice can be heard as he tries to open the door, he shouts: "It’s me!"

The captain faces a camera connected to the cockpit. Lubitz would have seen him on screen but does not react.

The captain grabs an oxygen tank or fire extinguisher in order to break down the door. No response from Lubitz.

The captain yells: "For the love of God, open this door!"

10:34 approx.

An alarm goes off, both audible and visual. No reaction from Lubitz.

Through the cockpit door, the first sounds of passengers running in the aisles can be heard.

10:35

The captain asks for the crowbar hidden in the back of the plane. Louder bangs can be heard hitting the door, followed by metallic sounds. The captain tries to bend the door with the crowbar.

10:37 and several seconds

A second alarm is set off, audible and visual.

This states: “TERRAIN, PULL UP.” Still no reaction from Lubitz.

The captain yells: “Open this f***ing door!”

10:38

Lubitz’ breathing can clearly be heard through an oxygen mask he put on. He is breathing normally. The plane is at 13,000 feet.

10:40

A violent sound can be heard outside. At the same time, inside, there is screaming. The Airbus hits the mountain with its right wing.

There is no other sound, except the alarms and the screaming passengers.

10:41

The plane hits the mountainside at around 5,000 feet and travelling at 500mph.

The new details emerged as it was also claimed a video clip revealing the final moments of the Germanwings flight has been discovered.

According to Bild, the footage is extremely blurry and no individuals can be identified, but it is being examined as a key piece of evidence by investigators.

Passenger screams can be heard, including several shouting "My God" in different languages.

And crucially, at least three "metallic" bangs are audible.

This would support reports that Captain Sondenheimer, who was locked out of the flight deck by co-pilot Andreas Lubitz, tried desperately to break in with a heavy object as the Airbus A320 nose-dived into the Alps.

It also emerged Andreas Lubitz had told officials at Lufthansa's flight training school that he had suffered from severe depression.

Lufthansa's CEO had previously said the company was not aware of anything that could have driven the co-pilot to crash the Airbus A320 into the French Alps and that he was 100 percent fit to fly.

Lufthansa said Andreas Lubitz broke off his pilot training for a period of several months but then passed medical checks confirming his fitness to fly.