The injured employee was going to use an elevator to go upstairs. The elevator does not have a call button and is operated manually. The employee approached the elevator and used the elevator drop key located in the elevator key box to manually open the door. He then stepped forward into the elevator shaft. The elevator car was on another floor, resulting in the employee falling down the shaft from the first floor to the basement level. The employee was hospitalized with a sprained left hand and bilateral calcaneal fractures.