In that case you will have to R%26amp;R the pan.
not knowing what vehicle you have can't say about appx cost/sOil leak because of damaged oil pan?He hit the oil pan now the plug won't tighten? Sounds weird. They do have a fix at the local parts store. Go ask the counter guy for help. If you need to change the pan, you would also want to change the gasket; they rarely come off in one piece. Also there may be a cross member that's in the way. You will have to lift the engine up a few inches so you can remove the old oil pan.Oil leak because of damaged oil pan?personally i would remove it and tig weld a new nut and plug on but most people dont have welders so you should just buy a new one and take away your step dads tools!!!