Mine did the same thing once upon a time.. luckily it went straight into a freshly plowed/damp field, so the only damage was a broken motor mount. I since fixed it with a couple carbon fiber rods going from the front of the mount to almost the radio compartment. Good as new, and still flying like a champ
I do however now put a very small amount of blue locktight on the servo arm screw now. Mine was a Hitec digital.. how about yours? Sorry for the loss man.. that's sad