How to shut down engines, they need fuel,air and fire...Once they are running they can be the devil to stop. The simplest method is to turn off the fuel which is exactly what we airframe drivers do. If its a wreck then get off panel at the fcu and turn it off manually (did this personally once on a B105 wreck in a tree) dont ask
- obviously fire crews would need some tech help. At an Air Force Base where I was based we used to have the fire guys around and showed them. On smaller engines PT 6 etc you can also kink the fuel line - on the big boys hmmm, I dont know so much. Spraying stuff in at the front end might just result in a very shiny clean compressor section...