EE was assisting in the removal of a pump skid from the pump building. EE was behind the pump operating the ratchet hoist when the pump moved and the suction pipe kicked backward striking their left knee. EE was seen at the ER, referred to ortho who released EE back to work. On 10-21-2019 Dr. took EE off work after an MRI reveled a meniscus tear in EE left knee.