Module rattle is it normal?

[doutlaw]

I have an airbag module off a suzuki swift. This module was once dropped as i can see a dent on its case. I decided to rattle the pcb to check if the (impact sensor)(not sure if its called something else its usually the large boxed component) is ok.
I can here it rattle when shaking the board, turning it around slowly looks like there is nothing loose thou.

Just wanted to confirm if this is normal? Before i clear the crash data.

Thanks.