Abstract: SEVERAL EMPLOYEES WERE RIGGING A 3,175 POUND PIECE OF CONCRETE SO THAT IT COULD BE HOISTED TO THE SECOND FLOOR. THE PIECE OF CONCRETE HAD BEEN PART OF A STOCK CHEST. THE FOREMAN CHECKED THEIR RIGGING JOB AND TOLD THEM TO RE-RIG IT. HE THEN LEFT THE AREA. THE EMPLOYEES THEN USED A 12 FOOT CHOKER SLING ATTACHED TO THE CHAIN HOIST HOOK. WHEN THEY STARTED TO LIFT THE CONCRETE, THE SLING SLIPPED AND PROVIDED ENOUGH SLACK SO THAT THE CONCRETE SLAB COULD SWING AROUND AND FALL ONTO EMPLOYEE #1. HE WAS PINNED BETWEEN THE CONCRETE AND A SMALL WALL. THE OTHER EMPLOYEE (EMPLOYEE #2) RECEIVED MINOR INJURIES WHEN HE SCRAMBLED TO GET OUT OF THE WAY OF THE FALLING CONCRETE SECTION.