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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 200980522 - Boiler Vessel Explodes During Inspection Process

Accident: 200980522 -- Report ID: 0855610 -- Event Date: 11/01/2004
InspectionOpen DateSICEstablishment Name
30781278411/02/20042892Viking Explosives & Supply, Inc.
InspectionOpen DateSICEstablishment Name
30781286711/02/20045074O'Connor Company

On November 1, 2004, Employee #1, a systems operator, and Employee #2, a supervisor, working for Viking Explosives and Supply Inc., were present at the job site while Employee #3, a technician working for the O'Connor Co., was performing inspections on a boiler in Gillette, WY. Viking Explosives and Supply Inc. purchased the replacement boiler from the O'Connor Co. On November 29, 2004, the boiler installation was performed by a third party, Powder River Heating and Air Conditioning Inc. During the final installation check up, the third party reported that the boiler would not light off. As part of the purchase contract, the O'Connor Co. sent Employee #3 to perform start-up checks on the boiler. During this process, the boiler exploded. Employee #1 was instantly killed, Employee #2 was seriously injured and Employee #3 was critically injured.

Keywords: boiler, explosion, laceration, concussion, puncture, installing

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation
1 307812784 Fatality Puncture Miscellaneous plant and system operators
2 307812784 Hospitalized injury Cut/Laceration Supervisors, mechanics and repairers
3 307812867 Hospitalized injury Concussion Mechanical controls and valve repairers

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