Abstract: At 3:15 p.m. on August 21, 2017, Employee #1 and Coworkers #1 and #2, employed by a construction company, were installing exterior vinyl siding at a multiemployer construction site, a two-story multifamily residential building. They were working from a pump jack scaffold. Employee #1 began to lower the scaffold, and the workers fell through the gap between the scaffold and the building, a fall height of 15 feet. Employee #1 hit his head on the concrete pavement. Emergency services were called, and Employee #1 was transported to the hospital. He was treated for multiple injuries, including fractures of his arm and collarbone and a possible concussion. Employee #1 required two surgeries.