At 12:01 CST, a Cessna 172P collided with a Cessna 172M during touchdown at Brainerd-Crow Wing County Regional Airport. The pilot of the 172P stated that he had made a call on the common traffic advisory frequency and did not hear any other traffic in the area. A witness stated that he saw the 172P overtake and land on top of the 172M, which had completed its touchdown on runway 23.