An employee had just placed some timbers on a pipe stack. As he was moving away, a 16-inch by 10-foot pipe that was being stacked rolled onto the timbers past the intended placement. This caused the timbers to catapult over the pipe. One of the two timbers struck the employee on the right side as it was coming down, knocking him to the ground. He suffered fractures to the right wrist, nose, face, and skull on the right side. He was hospitalized.