Abstract: At 10:00 a.m. on September 28, 2017, Employee #1, an apprentice electrician, and Coworker #1, a journeyman electrician, both employed by an electrical services company, were engaged in electrical work at a job site. Coworker #1 was changing out buss fingers as Employee #1 stood behind and held open the cabinet door. Employee #1 was not wearing protective gloves or other protection. An electric arc flash occurred, and Employee #1's hand holding the cabinet door was exposed to the flash heat. Emergency services were called, and Employee #1 was transported to the hospital. He was admitted and treated for second and third degree burns to the back of his left hand.