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Date: Mon, 13 Sep 2010 08:34:43 -0400
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Subject: Re: [LML] Re: Engine failure ATC Transcript Super Legacy Twin Turbo TSIO 580
From: Colyn Case <colyncase@earthlink.net>
In-Reply-To: <list-4464420@logan.com>
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References: <list-4464420@logan.com>

Well that's a happy ending.

I wonder if anybody ever thought about putting check valves in the Y =
that leads to the inlet.    Then you would still get something out of =
the remaining turbo.
....but that would be more complicated than just tightening the hell out =
of those hoses.

On Sep 12, 2010, at 8:42 PM, John Hafen wrote:

> I have a Continental in my IVP with the linked turbo system.
>=20
> Climbing over Mt. Ranier at 17k feet, one of the turbo hoses blew off. =
I didn't know that at the time.  All I knew is that I was climbing over =
Ranier (a 14,500 foot volcano with no landing areas near by) and was =
thrown forward in the seat as my manifold pressure went from 37 inches =
to 22.
>=20
> I initially thought I had lost an engine, but it was still running.  =
But the reduction in manifold pressure was dramatic.  And frightening.  =
I probably said a bad word or two (glad Mom wasn't with me) and may have =
crapped myself as well, not sure.
>=20
> I decided to make like United or Delta and try to glide into SeaTac.  =
So I turned toward SeaTac and was about to call to enter their class B =
and have them clear the runway, but about 12k feet, the engine started =
feeling much happier.  I returned to Paine without incident.
>=20
> A de-cowling revealed the slipped hose.  It only came off about 1/4th =
inch, but that obviously was enough to lose all turbo boost.  I slipped =
the hose back on and tightened the hell out of it, re-safety wired it, =
and have flown happily every since.
>=20
> John Hafen
> IVP 413AJ
>=20