Alert 00 – 37 Block Hanging Line Load Path


While performing the annual MPI inspection of critical equipment, it was discovered that the rig’s 500 ton traveling block top clevis hanging weight limitations were being exceeded. A rating plate identified the maximum weight to be hung from the clevis as 13 tons. The combined block and top drive weight is 17.5 tons, exceeding the maximum weight by 4.5 tons.

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