That would depend on the aircraft in question
johnman.
On the B747-400, for example, the procedure is identical, in the air or on the ground:
THRUST LEVER..........................................CLOSE
FUEL CONTROL SWITCH..........................CUTOFF
ENGINE FIRE SWITCH...................................PULL
If FIRE ENG message remains displayed:
ENGINE FIRE SWITCH...............................ROTATE
Rotate to the stop and hold for 1 second.
After 30 seconds, if FIRE ENG message remains
displayed,
ENGINE FIRE SWITCH......ROTATE TO OTHER BOTTLE
Rotate to the stop and hold for 1 second.
From Boeing QRH, FIRE ENGINE, SEVERE DAMAGE,
OR SEPARATION
When an evacuation then takes place the other three engines have their fire handles pulled, as does the APU, after the fire drill on the burning engine.
Or have I totally missed your point?
