FDECU May Have Contaminated Refrigerant

FDECU May Have Contaminated Refrigerant


    Units that have field deployable environmental control units (FDECU), models 2, 3, 4, 5 and 9, NSN 4120-01-449-0459, pay close attention.  Your FDECU could have arefrigerant contaminated with methyl chloride, also known as R-40.  Methyl chloride is flammable and explosive when exposed to the atmosphere or aluminum.  It could damage the FDECU.  What’s worse, it could injure or kill you or others.  For the complete story, get CECOM Safety of Use Message (SOUM) 2012-001.  The message discusses root causes, hazards, inspection, reporting and more.  You’ll find the SOUM at the US Army CECOM Directorate for Safety website:



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