Recently, an ironworker felt soreness in his left shoulder. The employee was setting angle braces, from an aerial lift, for two stair towers. The process of setting the angle braces was for the injured employee to hold the angle braces outside of the lift while the other employee put in the bolts. The employees set approximately 32 angle braces within five hours. The employee continued to work throughout the day setting the stairs on the stair towers.
The next morning the employee still had left shoulder pain. For about an hour he put bolts in holes to tighten the stair tower. At 8:00am, he tried to use an impact drill to tighten the bolts into the stair tower, but the pain in his left shoulder would not allow him to complete the task. Up until 10:30am, the employee drove the aerial lift while his partner used the impact drill to tighten the bolts. At that time he reported to the safety director that he had left shoulder pain that would not allow him to complete his work tasks.