Two employees were working from a scaffold at a residential home, installing a 12-to-14-foot beam at a height of about 16 feet. The beam slipped and knocked the employees off the scaffold, causing them to land on a concrete slab below. One employee sustained a sprained ankle and multiple broken ribs but was not hospitalized. The other employee was hospitalized for a skull fracture, brain swelling, as well as a fractured right forearm.