On October 10, 2007, at 1014 mountain standard time, a Cessna 172L, N9897G, experienced a loss of engine power and made a forced landing on Williamson Valley Road mile marker 6 near Prescott, Arizona. The pilot/owner operated the airplane under the provision of 14 CFR Part 91. The airplane sustained substantial damage. The pilot, the sole occupant, received serious injuries. Visual meteorological conditions prevailed, and no flight plan had been filed. The flight departed the Ernest A. Love Field Airport (PRC), Prescott, at an undetermined time.

A responding Yavapai County sheriff's deputy reported that the pilot told him that the engine lost power, and he turned back for the airport. He knew he wasn't going to make the airport, so he made a forced landing on Williamson Valley Road. The airplane struck a fence and flipped over.