Alert 08 – 15 Monkey Board Incident Results in MTO


During a rig move operation, the diving board had been secured with a tie back rope to the monkey board which was resting in a vertical position. The derrickman had climbed up on the monkey board to align it before raising the mast. At the same time a roustabout saw a rope that was tied on the bottom of the monkey board hindering the operation. As the roustabout moved into position under the diving board to untie the rope, the derrickman cut the rope holding the diving board securely in place. The derrickman did not look down to verify if it was safe to cut that particular rope. The diving board fell approximately 1.5 meters (5 feet) and hit the roustabout on the back of his head causing an open wound injury and rendering the IP unconscious.

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