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June 13, 2016

Look alikes causes fatality

Two maintenance workers were trying to remove a safety valve after obtaining work permit, when one of them was overcome with H2S and fell from the scaffolding and died. Both workers had unscrewed the flange bolts of the wrong safety valve. There were two safety valves that were identical in nature at the same location. One was isolated and permit handed over to remove that. But the workers opened the valve in service. What system do you have to prevent similar accidents?


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