Abstract: At 12:48 p.m. on September 23, 2020, Employee #1 was a substitute custodial staff worker, working on the day shift. He was asked by his supervisor to change the exterior light bulbs at the school. Employee #1 brought a 10-foot, A-frame, fiberglass ladder to change the bulbs. He climbed the ladder to change a light bulb located at about 13 feet on the ceiling. As he was climbing up with a bulb in his hand from about eight feet, Employee #1 fell backwards onto the concrete floor. The ladder also fell on him. He was hurt on his shoulder, back and head. He was immediately taken to Scripps Mercy Hospital for evaluation and treatment. He also underwent surgery on his right shoulder. He stayed in the hospital for two days.