Broken F-4S SAM system

the F4-S SAM system doesn’t seem to work at all, every time my engine catches fire I immediately press the fire extinguisher button, but they never work. anyone have the same problem?

What is the fire extinguisher button called in the menu?

I don’t know, I have the default key with key 6

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“Toggle Extinguisher” under Manual engine controls

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I think… That they only deal with fires in the engine, if other parts of the aircraft on fire, then they do nothing