First photo of heroic Germanwings pilot who tried to stop catastrophe emerges online

An image of the little-known second pilot of doomed Germanwings flight 9525, who desperately tried to smash down the cockpit door, has emerged online.

The captain had a secret combination to open the cockpit door. Source: 1 NEWS

Black box recordings show Patrick Sondheimer tried to smash open the cockpit door with an axe or crowbar as his suicidal co-pilot Andreas Lubitz steered flight 9525 from Barcelona to Dusseldorf into a mountainside, killing all 150 on board.

A new image published on The Daily Mail's website reportedly shows a small memorial at Germanwings' Cologne base, with images of the staff killed in the crash.

A picture of Mr Sondheimer can be seen next to fellow pilot Andreas Lubitz and the other crew members killed in the incident.

It has been reported that Mr Sondheimer left the cockpit to use the bathroom during the flight before Mr Lubitz took the opportunity to lock him out. When Mr Sondheimer returned, he found the door locked and tried to gain entry by pleading with Mr Lubitz, and then by using a heavy implement to smash down the door, but failed.

The display was created before it was revealed that the crash was intentional.