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Occupational Safety and Health Administration OSHA

Inspection Detail



Accident Investigation Summary
Summary Nr: 14520001 Event: 10/30/1986Oil Well Servicing Employee Struck & Killed By Flying Clamp
EMPLOYEE #1 WAS CONDUCTING A HYDROSTATIC TEST OF A 10,000 PSI MWP SUBSEA WELLHEAD (36 INCH OUTSIDE DIAMETER, 10 INCHES LONG). A PLUG WAS SET IN THE BOTTOM INSIDE DIAMETER OF THE WELLHEAD HOUSING, AND A BLIND (PLATE) WAS SECURED TO THE TOP OF THE WELLHEAD, USING A #27, 18 3/4 INCH CAMERON SWING BOLT CLAMP. THE PRESSURE WAS BROUGHT UP TO 15,000 PSI. AS EMPLOYEE #1 WALKED AROUND THE PROTECTIVE SCREEN TO CHECK ON HIS TEST HOSE, THE THREADS STRIPPED ON THE BOLTS HOLDING THE TWO HALVES OF THE CAMERON CLAMP TOGETHER. THE CLAMP, WEIGHING 2,070 POUNDS, FLEW APART UNDER THE PRESSURE AND STRUCK EMPLOYEE #1 IN THE FACE AND CHEST, KILLING HIM INSTANTLY.
Keywords: chest, high pressure, oil well servicing, struck by, flying object, face
Inspection Degree Nature Occupation
1 100263193 Fatality Fracture Occupation not reported

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