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Jeffrey Liegner, MD wrote:
LIVP Turbo Air Changes after ~2 Hours Cross
County
I've taken two longer cross country flights >3 hrs) lately
and
have experienced a change in turbo air temp suddenly after ~2 hours
flight time. It has happend four times now, so there seems to be
a pattern.
Jeff, just a thought. I've had defective SCEET tubing delaminate and
internally collapse producing an intermittent pressurization problem on
my Cessna. Once collapsed, it would stay that way until shutdown, then
be OK on startup until the next random time it happened. The problem
could not be seen from the outside of the tube. Replacement of the
tube (done in desperation) cured the problem and the postmortem on the
tubing, with it straightened out and peering down the interior of the
tube, revealed what had been happening. Some of the troubleshooting
ideas given before should help to isolate the problem to the tubing
coming into the mixer box.
Good luck! Let us know what you find.
Barry Knotts
LIV-P, Conti TSIO-550, Perrysburg, OH, abuilding....
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