I suppose there isn't any such thing as a "minor crash"... but I had a relatively unimpressive incident the other day. Coming in for a landing and one of the props hit a fence, snapped the two tips off, and the Phantom dropped onto a dirt flower bed from about 6 feet in the air. After I took all the props off and fired it up, and successfully tested RC activations and camera control, I figured it wasn't any big deal. Went and got a new full set of props and thought I'd be back flying. But now, one of the props scrapes against the top of the shell when it rotates. I presume it's the arm that hit the ground during the crash, and the structure has been compromised somehow. I tried tightening the motor mount screws, but they all seem good. Can I just get a new shell and put it on myself? Or does it need to go in for expert repair? Thoughts?