Was passiert eigentlich wenn so ein Flugzeug abstürzt, müssen dann alle mit ins Verderben?

There’s no “the” crash. Every flight accident is unique, runs differently and there are different factors ‘pure.

When planes fly in mountains, there are sometimes survivors and sometimes not.

When planes shoot, break and blow up in flames during landing, there are sometimes many dead, sometimes few dead and sometimes all survive.

When a plane has to be watered, there are sometimes dead and sometimes all survive.

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And yet, it depends on what you do as a passenger. For example, if you blow up the life jacket in the aeroplane during an emergency watering, and if you don’t get out of the aeroplane, or if you have internalized the security information and blow up the thing until you get out of the aeroplane.

Or if you have a burning airplane in your head, where the next emergency exit is, so you can find it even when the smoke burns in your eyes and sees nothing more. Or if you’re blind, you can’t find anything and then you just suffocate.