Alert 11 – 16 High Potential Near Miss – Hoisting Line Disconnected from Drawworks Drum


During well service operations the hoisting line (tubing line) disconnected from the drawworks on a well service rig. There were no injuries or equipment damage but severity potential was high. Loss of the hoisting line clamp could have resulted in dropping the traveling block. Fortunately the traveling blocks were in an elevated position in the mast with twenty plus wraps of hoisting line on the drum.

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