Case Study 1: On October 9, 1992, a 33-year-old male tree feller was killed while operating a chainsaw. Using a 4-horsepower, 16-inch, bow-bar chainsaw, the victim felled a 40-foot pine tree. He then used the bow-bar chainsaw to cut the limbs from the felled tree. As the victim cut through a spring pole, the chain saw recoiled and kicked back, fatally striking him in the throat.
Case Study 2: On April 8, 1993, a 28-year-old male equipment operator was killed when he was struck and run over by the skidder machine he was operating. The victim pulled into a landing area (which had a slope of less than 5 percent), stopped the skidder, and unhooked a number of logs that were being dragged. The victim remounted the skidder and drove it around an idled log-loader. As he did so, the skidder ran over two logs lying on the ground—one 6 inches in diameter and the other about 14 inches in diameter. When the skidder ran over the logs, the victim apparently lost his balance, fell or jumped from the skidder cab, and was run over by the left rear tire. The victim sustained multiple traumas to the head and torso and died at the scene.