After crashing on the island, Shepard says "I hope I didn't land on anybody" (in reference to Dorothy's house landing on the Wicked Witch of the East). The Stargate franchise have a long running tradition of making Wizard of Oz references.
McKay says that he is astonished that some Braveheart extras (referring to the prisoners on the island) were able to shoot the puddle jumper and made it crash.