Maverick wrote:I can't explain in detail but the purpose of the Engine Fire Push Button switch is to isolate the entire engine from the system. Like you said, it shuts the fuel and hydraulics line so the fire does not spread. By doing so, the Fire Extinguishing Agents become more effective in doing its job.
Not much, need to refer the books for more details.
Cheers!..
hi Maverick...anyway that's a good answer
Anyway, maybe i can add some info regarding this action..there are many actions when we pull or push the button for engine fire push button switch..in some airplane,i refer to the basic airplane, when we push the button for fire push button switch there are many sequences will be happen..not just hydraulic and fuel is affected, but bleed air produce by an engine is automatically shut off in the first stage and the fire extinguisher system direction valve also in positioned..when direction valve in position,it will automatically armed the extinguisher agent fire switch and then fuel valve will be closed and the starting control circuits will be de-energized. After that,hydraulic valve and oil shut off valve will be closed automatically and engine automatically will be totally shut down in the final stage..(for turboprop engine - feathered)..hope this helps Maverick
