Aircraft cabin air pressure question.

[PRTVR]

My granddaughter was flying back from Canada and her dolls head ended up squashed flat, it wasn't mechanically done, sat on etc,
Trying to think of a explanation of how it happened, have experienced the opposite, opening a bag of crisps and the bag pressure is higher than the cabin but struggling to understand how it happened, any thoughts anyone.

[Steve7777]

Air could escape more easily than it could enter. On the way up the pressure successfully equalised. On the way down it didn’t and the increasing cabin pressure squashed them.

[PRTVR]

That makes sense, I was thinking that the head would be just a shell, but if it was like a ball but with a very small hole it would
act like you said. Thank you.

[CarbonXKR]

You always see that with your water bottle (if you have one half finished). Flat on landing..

[anonymous-user]

And if you have stuffy ears (like when I barotrauma’d mine the other year), descending when you can’t equalise properly is very unpleasant.

I had the thing happen with the water bottle too.