Abstract: At approximately 7:45 a.m. on March 6, 2006, Employee #1, a packer, was cleaning a card and fold machine using an air gun, a Guardair Corporation, Model Number 75LJ. The carding process eliminates fibers too short for inclusion in the spun yarn, and removes dirt and foreign matter, and arranges the fibers into a very thin layer. The machine was running, and the interlock on a door that guards several chain and sprocket assemblies was disabled, in order to expedite the cleaning process. Employee #1 sustained a crushing injury to his right hand when it got caught between a running chain and a sprocket. He was transported to Arrowhead Regional Medical Center, where he was hospitalized for three days.