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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 201167582 - Employee Is Injured When Helium Tank Explodes

Accident: 201167582 -- Report ID: 0950641 -- Event Date: 11/10/2005
InspectionOpen DateSICEstablishment Name
12606252011/14/20055999Sims Welding
At approximately 4:25 p.m. on November 10, 2005, Employee #1 was filling a tank of helium at a party store. The tank was 19 inches high and 8 inches in diameter, was constructed of aluminum, and was manufactured by Kiddee. It had a CGA 580 fitting designed for helium. As he filled the tank, he heard a hissing sound so he stopped the filling process. Thinking that it was a faulty rupture disc, he removed the original disc, which was rated for 3500 psi, and replaced it with another disc rated at 3775 psi. He then used a wrench to tighten the transfill hose to the valve. When he be began fill the tank again, it exploded. He was struck by a piece of the tank approximately 10 inches long by 8 inches wide by 4 inches thick and suffered a compound fracture of his femur. He was hospitalized with his injury.
Keywords: cylinder, compressed gas, explosion, high pressure, struck by, tank, leg
Employee # Inspection Age Sex Degree Nature Occupation
1 126062520 Hospitalized injury Fracture Sales occupations, other business services

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