I've imagined this scenario many times: you break through a snow bridge and fall into a hidden crevasse, how should you react? The fear is, if you're wearing crampons, your foot may snag the ice during the fall, in which case you're likely to break your ankle and get flipped upside down (upside down in a crevasse is pretty much certain death). Or you end up deep in the crevasse seriously injured which leaves you helpless and unable to help yourself out.
There's lots of info about crevasse rescue, but not much about how to react in the moment of the fall.
What can you do when you suddenly feel yourself starting to break through the snow and know you're going into a crevasse?