I'm kind of surprised a passenger didn't flip out on this one. People are already on edge on "these little crop-dusters" as one man described a CR7 at DCA, and the Dash 8 has one of the best passenger views of the landing gear in aviation (MABYE a better view from the back seat of a 172 but I doubt it). I would figure whoever was sitting next to the tire would have freaked out and started yelling at the FAs and the message would be relayed before the tower figured it out but thats just my opinion.