CC: Canard Aviators <canard-aviators@yahoogroups.com>,
     Cozy Forum <cozy_builders@canard.com>, Velocity Forum <reflector@awpi.com>

That's about it.  An IA friend told me he has seen it maybe 8 or 10 times in
twenty years.  It is a rare thing, but sooner or later, jugs MUST fail from
something.  Absent any of the more common failure modes (like cracks or
swallowed valves, etc.) this will happen.  Guy from Mattituck said the
failure mode probably had a lot more to do with QA than abuse or age or
cycles or anything else.  It is an angle-valve engine which is supposed to
be much more crack resistant than parallel valve heads.  Further, it was
treated somehow during the rebuilding (about 180 hrs ago) to make it more
resistant than that.  Sort of an uncommon occurance raised to the third
power.  Anyway, he says he should be able to help me a good bit on a new
assembly.  I will post the final results when the dust clears and the smoke
settles.

Being treated pretty good so far  ....  Jim S.

PS.  It appears that the Velocity that landed on I-95 in FL might have had a
more severe variation on this same problem.  I'm going to check with him and
see.

Carl Denk wrote:

Good show, returning to airport, and correctly 1st duty to fly the
airplane!

Sounds like there was a leak (defect) between the head and cylinder.
Then hot gases (combustion) started rushing through the small hole, and
erode the hole bigger to the point where there was no compression to
speak of, noting that at normal engine speeds, it takes quite a good
sized hole to actually have a loss of most power from a cylinder. I have
had a injector nozzle clog, and barely noticed the loss of power, but
the ultimate scanner's EGT alarms flagged a cylinder with very low EGT.
Landing at a nearby airport, pull one injector nozzle, blow it out with
mouth, and total 15 minutes on the ground we were on way home.

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