Abstract: Employee #1 was assigned to divide a large horse stall into two smaller stalls by installing precut planks into slots in the wall. The 8 ft by 3 in. planks were stored on the second floor, which was 10 ft 1 in. above the first floor. Employee #1 lowered several planks through a floor opening before he fell through headfirst, landing on his forehead and his right hand. The length of the planks would have required Employee #1 to lean into the opening so that he could reach the floor with the planks. The accident could have been prevented if Employee #1 had carried the planks down the stairs as had been done in the past. Employee #1 died from his injuries.