OSHA Accident Investigation · Summary #14394225

HEAD,EQUIPMENT FAILURE,HOSE,HIGH PRESSURE,OIL WELL SERVICING,STRUCK BY,FLYING OBJECT,PRESSURE RELEASE

1988-09-21T00:00:00

Event: HEAD,EQUIPMENT FAILURE,HOSE,HIGH PRESSURE,OIL WELL SERVICING,STRUCK BY,FLYING OBJECT,PRESSURE RELEASE
Linked inspection: No inspection record linked to this accident's victims.
Summary number: 14394225
Report ID: 625700

Event description

Employee killed when struck by wing nut union from hose

Investigation abstract

Employee #1, a laborer, and three coworkers were hydrostatically testing 7 in. d iameter pipe. Employee #1 was sitting on another pipe that was approximately 32 ft away from the pipe that was being tested. When the test pressure was brought up to 16,000 psi, a hammerlock union failed and parted. The female end, to which the pressure hose was attached, flew back approximately 10 ft and struck a meta l backstop that had been put in front and back of the pipe being tested for the employees' protection. The part separated from the hose, ricocheted off the back stop, and struck Employee #1 on the head. He was killed.

Victim

#1 Fatality Age 22 M

Nature of injury
12

Part of body
13

Event type
1

Source
36

Occupation code
999

Human factor
6

Environmental factor
5

Task assigned
1

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