Abstract: At 9:30 a.m. on September 27, 2021, an employee, a journeyman electrician, was working at a client's site helping a coworker put an electrical sign back in its frame. The employee was guiding the sign up while the coworker was positioning it in the body of the plastic. Then employee was putting screws in the bottom retainer using a Dewalt 20V Max Brushless Compact 1/4-Inch Impact Driver while he was on the fourth step of an A-frame Werner ladder when he fell to the concrete floor. The ladder was stable on the ground and the ground was dry. The employee suffered severe brain damage due to a brain bleed and died.