Flying pawn how to take damage when crashing on landscape

Hello, i created a landscape with mountains for a university project and its a flying game. I created the ‘‘mountains’’ with the sculpt as it is the first time i use Unreal engine in my life. i learned tutorial and e.t.c but i cant figure out how to do 1 thing. How to make the lying pawn to take some damage when hitting ( or crushed) on the mountains or wherever in the landscape. I can’t figure it out how to do it with blueprint. on Landscape i have the ’ collision presets: BlockAll ’ and i ticked the 'generate overlap ever '.
Thank you very much and appreciate for any help.