Abstract: At 2:45 p.m. on April 24, 2017, two maintenance employees worked to install a bearing on a Raymond High-Lift powered industrial truck. The work was performed indoors in the Maintenance Shop. The employees stood on a 6 riser Tri-Arc Mobile Ladder Stand, (serial: 09973, capacity: 450 pounds, tread width: 16 inches, top step height: 57.5 inches). The ladder stand was placed sideways next to the forklift. Employee #1 stood on the top step to install the bearing while Employee #2 stood on the lower steps and pried the mast apart using 14-inch long screwdriver. The lateral force caused the ladder stand to kick out and the employees fell. Employee #1 fell and hit his head on the concrete resulting in a skull fracture. Employee #2 grabbed the forks of the forklift and did not fall to the floor. Employee #1 was hospitalized until May 14, 2017 when he was released to home. On May 19, 2017, the employee died from a blood clot.