appropriate personal protective equipment / residual energy / crude oil / corrosive chemical / lockout devices / tagout devices / energy isolating devices / machinery / scale products / energy-control measures / oil refinery / oil refinery incident / nearby travel center / hazardous energy / hydraulic equipment / energy-isolating device / /
Organization
U.S. Chemical Safety and Hazard Investigation Board office of Investigations and Safety Programs / U.S. Chemical Safety and Hazard Investigation Board / Center for Chemical Process Safety / Occupational Safety and Health Administration / American Petroleum Institute / /
Person
Trevor Kletz / Donald A. Norman / /
Position
mechanic specialist / mechanic / mechanic specialist and a mechanic / maintenance supervisor / officer / safety officer / /