At 10:33 mountain time, a Cessna 182P nosed over during landing rollout on runway 11R at the Tucson International Airport. The pilot and passenger received minor injuries. The tower controller said the airplanes approach looked a little steep. The airplane appeared to have passed over the landing threshold, then it bounced on the runway and porpoised before veering off the runway and nosing over in the dirt shoulder. The airplanes nose wheel assembly was found about 300 feet from the main wreckage.