Cause & Consequence
- Uncontrolled release of a flammable gas or liquid
Any Location Type
Incident Info Source
Specific Incident Equipment
Well Service Rig Main Block
As per the IADC Safety Alert
The hoisting line (tubing line) clamp was not torqued to 150 foot pounds as per the manufacturer’s
The clamp was reused an undetermined number of times and the clamp’s interior friction surfaces
were worn significantly.
The clamp’s securing bolts were slightly deformed.
The clamp was not visually inspected on a frequent basis in accordance with the manufacturer’s
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