Abstract: At approximately 11:30 a.m. on November 18, 1998, Employee #1 fell about 16 ft to a concrete floor. He broke his right heel and injured his right hand and left knee. He was hospitalized for six days. Employee #1's employer does maintenance at the oil refinery. At the time of the accident, a 1.5 in.- diameter pipe was being replaced and Employee #1 was to weld the pipe into place. A crane lifted the pipe section and Employee #1 was on a scaffold platform with a tag lane to move the pipe into place. As he did this, in order to get a greater height, he stood on a 10-in.-diameter pipe that was running thorough the scaffold. He pulled on the tag line and the tag line slipped and Employee #1 fell backwards over the guard rail.