In this episode, Rob and Jo discuss the CSB's investigation report on the 2019 explosion and fire at AB Specialty Silicones in Waukegan, Illinois. On May 3, 2019, operators were performing a batch operation when two incompatible chemicals were added to the same tank, which produced hydrogen gas, and eventually led to a massive explosion and fire that killed four employees. The CSB released its final report on the incident on 9/24/2021 and then an incompatible chemicals video about the incident on 4/28/2022. Today, we provide some background details, delve more into what happened, and cover what safety issues at the facility likely contributed to the event. We'll also cover the types of industries and facilities that could be at risk for incidents like this one, and share nine key learnings from this tragic event.  Find the CSB's final report here.  Find the CSB's video on the incident, Incompatible Chemicals: Explosion at AB Specialty Silicones, here.  And as always, please contact us with any questions or comments at [email protected].  --- Send in a voice message: https://anchor.fm/amplifyyourprocesssafety/message