"The U.S. Chemical Safety Board (CSB) released its final investigation report into the February 8, 2017, explosion at the Packaging Corporation of America's (PCA's) DeRidder, Louisiana, pulp and paper mill. The incident killed three contract workers that were performing welding and grinding, referred to as "hot work," above a tank that contained flammable materials. Please see the CSB email chain below. An animation showing the sequence of events is available to view on the CSB's website ( https://www.csb.gov/videos/?SID=3589) , as well as on the CSB's YouTube channel ( https://www.youtube.com/watch?v=a96kriSo6EQ ). You may find the 6-minute video to be a good training facilitator or safety meeting topic."
