On November 30, 2017, an employee attached a plate clamp to the side of a 5x10 piece of sheet metal that was 0.5 inch thick. The plate clamp was connected to an overhead electric hoist installed on a jib crane. The clamp was attached to the side away from the plasma table; the clamp was manually tightened. The employee lifted the clamp and sheet up enough to clear the top of the table and moved the bottom of the sheet to the table's edge and then proceeded to lay the metal flat on the table. The employee had to make adjustments to the metal's position and stood up on the table. After the last adjustment, the employee went to get off the table and the sheet fell from the clamp. The sheet struck the back of the employee's legs as it fell to the table resulting in broken bones in the right leg.