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Heat Exchanger Failures and Fires

Heat exchangers can fail through corrosion, tube rupture, or thermal shock, releasing hazardous process fluids or creating dangerous mixing between process streams. The cases below document what the CSB found when heat exchangers were a primary or contributing factor.

16 CSB investigations in this database involve heat exchanger as a primary or contributing equipment factor, spanning 1998–2024.


Heat Exchanger Failures and Fires (16)

Incident Date Industry Key Hazard
Wacker Polysilicon Chemical Release 11/13/2020 Chemical Manufacturing Chemical Release, Toxic Release
Formosa Plastics Propylene Explosion 10/06/2005 Chemical Manufacturing Chemical Release, Explosion
Bayer CropScience Pesticide Waste Tank Explosion 08/28/2008 Chemical Manufacturing Runaway Reaction, Explosion
Cuisine Solutions Ammonia Release 07/31/2024 Food Processing Ammonia Release, Toxic Release
Honeywell Chemical Incidents 07/20/2003 Chemical Manufacturing Chemical Release, Toxic Release
Dow Louisiana Operations Explosions 07/14/2023 Chemical Manufacturing Explosion, Fire
Enterprise Pascagoula Gas Plant Explosion and Fire 06/27/2016 Oil And Gas Production Chemical Release, Explosion
Williams Olefins Plant Explosion and Fire 06/13/2013 Chemical Manufacturing Bleve, Chemical Release
Goodyear Heat Exchanger Rupture 06/11/2008 Chemical Manufacturing Overpressure, Chemical Release
Kuraray Pasadena Release and Fire 05/19/2018 Chemical Manufacturing Chemical Release, Fire
Tesoro Anacortes Refinery Fatal Explosion and Fire 04/02/2010 Petroleum Refining Explosion, Fire
Concept Sciences Hydroxylamine Explosion 02/19/1999 Chemical Manufacturing Explosion, Chemical Release
ExxonMobil Torrance Refinery Explosion 02/18/2015 Petroleum Refining Explosion, Fire
Synthron Chemical Explosion 01/31/2006 Chemical Manufacturing Runaway Reaction, Vapor Cloud Explosion
Honeywell Geismar Chlorine and Hydrogen Fluoride Releases 01/23/2023 Chemical Manufacturing Chemical Release, Explosion
Silver Eagle Refinery Flash Fire and Explosion and Catastrophic Pipe Explosion 01/12/2009 Petroleum Refining Flash Fire, Explosion

Chemical Release · Explosion · Structural Failure · Fire · Toxic Release


Valve Failures in Process Plant Incidents · Relief Valve Failures and Overpressure Events · Pressure Vessel Explosions and Failures · Pump Failures and Process Safety Incidents · Pipeline Ruptures, Leaks, and Fires · Distillation Column Explosions and Failures


Data sourced from CSB.gov public investigation reports. This site is an independent project not affiliated with the U.S. CSB.