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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 200371946 - One Employee Killed And One Injured In Steam Line Rupture

Accident: 200371946 -- Report ID: 0454510 -- Event Date: 10/08/2001
InspectionOpen DateSICEstablishment Name
30356580810/31/20011711C. O. Classen Mechanical, Inc.
Two employees entered a manhole pit to replace a by-pass line on a steam pipe (trap for condensate from steam). The valves in this section of piping had been closed and the employees began to loosen the pipe at the joint using pipe wrenches. Apparently the steam leakage built up pressure in the line and the pipe broke at the threads nearest Employee #1. It was discovered that a thinner walled pipe was used on this section when it was installed and the thinner pipe was the one that broke. Steam escaped and severely burned Employee #1 over 80 percent of his body and also burned Employee #2's hands. Employee #1 died from his injuries approximately three days later in the hospital. Employee #2 was treated for burns but was not hospitalized.
Keywords: burn, steam line, confined space, rupture, steam, manhole
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Other building Other Under $50,000 1 X
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 303565808 Fatality Burn/Scald(Heat) Plumbers, pipefitters and steamfitters FallDist:
Cause: Installing equipment (HVAC and other)
FatCause: Other
2 303565808 Non Hospitalized injury Burn/Scald(Heat) Plumbers, pipefitters and steamfitters FallDist:

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