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2020 2nd alert HVL#11 (Released Energy)TDS bails over extended hitting the 2nd section horizontal middle cross beam on the mast
On June 7th, 2020 at 18:25hrs while tripping out 5”drill pipe. Drill pipe Stand was pulled and racked backed after rack back the AD pressed the float button to keep the link tilt in center position same time he used retract switch to bring it back link tilt faster. Once link tilt in center position AD started descending TDS. While lowering the TDS about 5meter below the monkey board, he unintentionally operated retract switch which resulted in the elevators and links hitting the horizontal beam in the mast at height of 20 meters and the links rested on the beam until the block is completely stopped.
Always ensure no distraction for Drillers/AD when operating the draw works. Always Ensure Handovers to be done in a quiet environment where possible, stop the job if safe to do so. Always ensure warning sign placed to ensure the break operator will not be engaged in any type of discussion while operating the brake (TDS). Always engage with OEM in relation to update on critical equipment upgrades. Always distribute learning to same type of rig. Always position stabbing board camera to cover the mast during POOH. Always maintain red zone while tripping and moving the block.
Category:
Second Alerts
Document Type:
Safety
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