Hey any guy who's name is lablover has to be a great guy! I would remove the exhaust and maybe the carb and intake to look inside for dirt at very least. Once satisfied the engine has no dirt inside I would remove the glow plug and install a prop and turn it over by hand. I would for sure bench run the motor at very least before it is flown again. it depend on what angle the engine hit, I have had broken cases from crashes, look at the mounting lugs on top and bottom real close. It is a pretty toght motor (I have one) but nothing is indestrucable. just check her over eal good and go with your gut feeling or get the Club expert to look it over if you are not 100% sure, an extra set of eyes is added insurance. Good Luck and keep flying! Look at it like you got that one out of the way and now the odds against it happening again soon are with you!!! Have Fun!