Abstract: On April 13, 2011, an employee was a mechanic working with a lead mechanic to troubleshoot and fix a Hitachi brand escalator located. One step of the escalator had been removed to allow access to the interior. After servicing the unit, the employee who was on the upper level of the building opted to turn on the escalator to allow it to run. His back was to the escalator and somewhat kneeling on the landing and the half-exposed step closest to the landing. An opening where the step had been located was directly behind the half step with another step to the rear of the gap. When he turned on the escalator, his right foot must have been partially in the gap area and the step behind the gap sheared the foot off at the ankle as the escalator began to move forward. People in the building gave the employee aid until fire department personnel arrived and arranged transportation to the hospital. The employee sustained an amputation of the foot at the scene but underwent additional surgery to remove additional bone and tissue. He spent three days in the hospital.