On June 28, 1993, at approximately 2100 central daylight time, a Cessna 172G, N3987L, was substantially damaged during a forced landing, near Fort Worth, Texas. The pilot, also the owner, and his passenger were not injured. Weather for the flight was visual meteorological conditions. During an interview with the pilot, conducted by a Federal Aviation Administration (FAA) inspector, he stated that he was at cruise flight when the engine began to run rough. He immediately looked for an airport; however, the engine lost complete power. The forced landing was made to the only available area, which the FAA inspector stated was unsuitable. The pilot reported that at approximately thirty feet above ground level the stall warning horn sounded and the airplane descended vertically to ground impact. An inspection of the airplane at the accident site failed to reveal any anomalies that could have caused the loss of power. The fuel cells were examined and they both contained fuel. The airplane was released to the owner.