Sorry for taking so long to get back to your reply...school and work have had me consumed for a while, anyway i did what you said and upon inspecting the model after the clean up I found this on the back of the tail

I tried deleting the the messed up part but it wouldn't let me click on the edges or verts, i then tried to delete the face it was sitting on hoping it would delete the whole thing....sadly it did not and i still could not get rid of it.....any ideas?