Bob,

This one certainly has me curious as to the cause. I've got very
limited experience in fanjets, but I've flown them at max operating
altitude and consider it a normal operation. In the turbojet 20-series
Lears we regularly went to FL450 in the 23 and 24B (usually after one
hour of flight) to get the fuel burns as low as possible when hauling
freight (plus, back then, there was nobody up that high and we always
got direct). In one version of the 25 we could go to FL510 although
even when very light, the climb rate going through 490 was so slow we
wondered whether we'd make 510 before time to start down (and, as you
know, you could see the curvature of the earth).

I did lose an engine at FL450 in a 24B when the captain moved the power
levers fairly quickly and an old fuel control unit couldn't handle it
at that altitude, flaming out the engine. We got a relight at 17,000
although, as I recall, the relight envelope was supposed to go to
25,000 (let's just say maintenance at that organization was not exactly
top notch - long out of business).

As a result, I'm curious as to what would cause both engines to go
quiet - the only common system is fuel, although I don't know the CRJ
systems at all and wonder whether there is/are any procedure(s) that
must be followed above a certain altitude regarding pumps or if the
company regularly flew so low that they didn't put in any additives
such as PRIST to prevent ice in the fuel. Have to contact a CRJ
captain friend of mine and see what she says. Also wondering why the
relight was unsuccessful...just doesn't make sense, jet engines are so
darn simple in operation - add fuel, ignite and go. Also wondering why
they couldn't make an airport from 410 in central Missouri.

The overheating comment on this thread is laughable. And I thought I'd
heard all of the nutty theories of aircraft accidents. Or maybe it was
some localized heavy gravity that shortened the glide range....

Your thoughts?

Warmest regards,
Rick