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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 200041481 - Employee Dies After Being Struck By Well Valve Assembly

Accident: 200041481 -- Report ID: 0653510 -- Event Date: 03/06/2009
InspectionOpen DateSICEstablishment Name
31306106103/09/20091389Mesa Well Service, L.P.
On March 6, 2009, Employee #1 was working with a crew removing the Christmas tree assembly from a gas well that was to be temporarily abandoned. The crew did not depressurize the well before attempting to remove the Christmas tree. As the Christmas tree was being released from the threads holding it, there was a violent release of pressure, displacing the Christmas tree upwards and causing it to come loose from the elevator and falling to the side. Employee #1 was killed when he was struck by the Christmas tree assembly.
Keywords: air pressure, gas well, valve
Employee # Inspection Age Sex Degree Nature Occupation
1 313061061 Fatality Other Occupation not reported

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