Abstract: On February 27, 1991, Employees #1 and #2, of the Smith Dennison Construction Company, were repairing a natural gas leak on the 3/4 in. service line in a mobile home park. The park owner had dug a hole under the right side of a mobile home next to the utility pad to expose the gas line. Employees #1 and #2 conducted a job review when they arrived at the site, and decided to use a 4-wheel cutter to cut the steel pipe and then insert a Pitman stopper. They anticipated leaking gas, so they did not conduct a test with the central gas indicator that was on the truck to determine if there was any contamination present. A natural gas fire occurred and Employees #1 and #2 sustained burns.