As per title. How to replicate - go to test drive and literally drop it on top of a tank.
Tested with A-4E early and i have the same issue.
You can bug report it here: Gaijin.net // Issues (just search a bit first so that you don’t report something that is already reported and known about)
A guide on how to report bugs can be found here: ([Navigation] Technical Knowledge Base | War Thunder Wiki)