March 23, 2012, Longmont, Colo., Cessna 172S/Cessna 180
At about 1143 Mountain time, the two airplanes were substantially damaged during a mid-air collision. The Cessna 172 impacted an embankment. The flight instructor and private pilot receiving instruction aboard the Cessna 172 were fatally injured. The Cessna 180 impacted power lines and a fence during a forced landing. The pilot of the Cessna 180 sustained minor injuries. Visual conditions prevailed. The Cessna 180 pilot stated she was northbound at approximately 7000 feet msl when she heard a loud bang. The airplane immediately pitched up about 50 degrees and rolled into an approximate 45-degree right bank.