Alert 02 – 23 Personnel Hoisting Operations Results in a Restricted Work Case
WHAT HAPPENED:
There was a leak in a union on the mud pump high pressure mud line leading to the rig floor stand pipe. The injured person was lowered below the rig floor using the rig floor air winch. He was to loosen the clamps on the high pressure mud line to be able to change the union O ring. The air winch operator did not remain standing by at the air winch. When the Driller came back from break time he picked-up the air winch line and he was not aware that there was a man hanging in the winch line below rig floor level. The injured person’s right shoulder was hit against the sub base beams before the Assistant Driller was able to stop the Driller.