Abstract: At 07:15 a.m. on May 7, 2012, Employee #1 was assisting a coworker adjust the rear brakes on a dump truck before taking it out of the yard. When Employee #1 yelled to build up air pressure, his coworker started the engine and let out the clutch, forgetting that he had left the transmission in gear and spun the rear tires. Employee #1 was lying on the ground near the rear of the truck and his legs were between the tires of the rear tandem axles. The spinning tires tore off the skin and pants of Employee #1 and damaged the muscle tissue to the bone from the knee down to his ankle on his right leg.