You take your basic meteor streaking along at 24,000 MPH and smack that sucker into a jet airplane and you are going to have all sorts of new chemical compounds formed.
I actually once saw a daylight meteor entry and the light was blindingly bright and the trajectory was across the sky. It didn't appear at all to have originated from the ground level moving up. I suppose anything is possible but most people would consider the idea that a meteor collision, with the object appearing to rise in a criss cross trajectory into the aircraft, caused this is a bit, shall we say "far fetched". Certainly more so than the possibility of a SAM, terrorist launched or otherwise.