Abstract: At 8:00 a.m. on May 17, 2017, Employee #1 and Coworker #1, employed by a concrete products company, were attempting to remove a hatch door from its frame. The entire pre-assembled hatch assembly, East Jordan Iron Works Part Number 8196, consisted of a cast iron frame, a 30-inch by 30-inch cast iron hatch door, a stainless steel spring-assisted strut, and a self-engaging safety bar. The assembly weighed approximately 520 pounds. As the two workers attempted to remove the strut that acted as a lift assist for the door, the compressed spring-loaded strut flew apart and struck Employee #1's right hand. Emergency services were called, and Employee #1 was transported to the hospital. He was admitted and treated for an amputated right index finger and fractured thumb. The surgical staff was able to reattach the amputated finger.