TM 9-2350-287-10ENGINE AFES COMPONENTS (continued)Remote Status Indicator (RSI)The RSI is a red alarm light that warns personnel in the crew compartment of engine overheat and fires.The red RSI ENGINE FIRE warning lamp and the red FIRE ALARM lamp on the engine T/A panel light at the sametime.Fire ExtinguishersThe fire extinguishers consist of steel cylinders filled with Halon and equipped with a quick-release valve assembly.AFES cylinders contain Halon fire suppressant pressurized with dry nitrogen for use on hydrocarbon fuel fires only.The engine compartment has two fire extinguishers, each weighing 10 pounds. One fire extinguisher interfaces with thethermal detection system through the engine compartment T/A panel. It activates automatically when the thermaldetection system senses an engine fire. The second fire extinguisher is dedicated to the AFES manual discharge system(AFES/MDS). It is activated by pulling one of the lanyard cable pull handles. One is located on the outside of the vehiclenear the driver’s hatch, and the other is located in the driver’s compartment.4-9
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