Abstract: At approximately 1:12 p.m. on December 2, 2005, two employees were working in a structure supporting a jaw crusher while replacing a worn toggle plate attached to the outside of the moveable crusher jaw. The old toggle plate had been removed using a portable hoist (come-along) attached to a sling and a chain and the new plate was being positioned for installation when the chain supporting it came loose from an eye on the crusher pitman. Employee #1 suffered a serious laceration and contusion in the upper right thigh when the 1,050-pound toggle plate fell approximately 24 in. striking him a glancing blow. Employee #2 was struck by the chain and knocked unconscious. Employee #2 sustained a concussion and contusions to his left shoulder, right forearm and right thumb. Both employees were hospitalized.