steve.t wrote:

Generally this is assumed/presumed to be for other than engine
fire.

I still remember a flight during my primary training. It was before my
first XC, and I "encountered" perhaps 20 different emergencies in various
(simulated!) combination. Engine fire was certainly among them.

For any of the 172s or 182s I've flown, various fires have been included in
the emergency procedures checklist.

- Andrew