Alert 05 – 07 Unsafe Hoisting & Rigging Practice WHAT HAPPENED: The monkey board assembly was being removed from the derrick during the rig out stage of
Alert 99 – 28 Hydraulic Telescoping Cylinder Failure WHAT HAPPENED: While rigging up a telescoping mast, one of the two cylinders failed and the mast dropped. No
Alert 99 – 14 Rigging Down Safety WHAT HAPPENED: During rig-down, all sections of the mast had been dismantled and only the lower sections remained pinned to the