Two employees from two different companies were using a manlift to set a valve on a wellhead. The rigging from the crane carrying the wellhead became bound with the well, causing it to kick. The valve then loosened from the carrying straps and fell 14 feet, hitting the manlift. The two employees were knocked out of the manlift and fell 9 feet to the ground. One employee suffered a broken leg and was hospitalized. The other employee suffered minor injuries.