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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 200840908 - Welder Dies In Confined Space Environment

Accident: 200840908 -- Report ID: 0524530 -- Event Date: 07/01/2003
InspectionOpen DateSICEstablishment Name
30381850407/01/20031799Walters Metal Fabrication
Employee #1, a welder, entered a confined space to install a tank in a 22-ft deep pit. Air monitoring showed high levels of carbon monoxide so the employee wore a supplied-air hood respirator when he entered the tank. When safety monitors observed the employee from above, they saw the employee had collapsed and was apparently unconscious. Later, during the accident investigation, it was discovered that the air supply line had been hooked up to a plant nitrogen line instead of an air source. Employee #1 was pronounced dead at the hospital.
Keywords: asphyxiated, confined space, ppe, welder, construction, pit, tank, respirator
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Manufacturing plant Alteration or rehabilitation $250,000 to $500,000 6 22 X
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 303818504 Fatality Asphyxia Welders and cutters FallDist:
FallHt:
Cause: Steel Erection Of Solid Web-Welding/Burning/Grindi
FatCause: Asphyxiation/inhalation of toxic vapor

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