"Peter Duniho" writes:

My comments are specifically targeted at genuine *failures*. That is,
something broke.

Ah...o.k. That *is* different and I can appreciate the distinction.

There are plenty of reasons an engine might stop running,
but not all of them are pertinent to a reliability analysis discussing
failure rates and statistical chances of failure. You seem to keep trying
to introduce irrelevent types of engine failures, while I try to make clear
what it is I'm talking about.

No, I was coming at it more from the pilot's (rather than the
mechanic's) perspective. It's not "irrelevent" to a pilot when the
engine makes an uncommanded stop in flight. I think it's common for
pilots to call such stoppages "engine failures." I can see that
there might be a better term for it.

O.k., fuel exhaustion, air starvation, misfueling, ... are no longer
causes of "engine failures". Now to come up with a name for what
people mean when they talk about undesired engine stoppage...

Thanks for sticking with me through this.

--kyler