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Date: Tue, 15 Jun 2010 07:58:28 -0400
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From: David Standish <carbonflier@gmail.com>
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Subject: Re: Birds Nest Under LIVP Cowling: Higher CHTs
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Last June I parked overnight at  KMLE (Millard) southwest of Omaha.  On 
preflight the next morning I found bird droppings on the prop and inside 
the cooling intake.  I pulled the cowl and found a nest being 
constructed over N0. 1 cylinder.  The airplane was only stationary for 
about 16 hours and on an active ramp.  When I got home I constructed a 
pair of cowl plugs and have not had a repeat yet.

David Standish M.D.
N32CL


Jeffrey Liegner, MD wrote:
>
>     After a trip to the midwest, I noticed much higher cylinder temps
>     for the rear cylinders during climb and cruise.  I pulled the
>     cowling and found a bunch of Nebraska weeds and vegetation stuck
>     and stuffed on top of the rear cylinders (#2 and #1), which
>     certainly would have impaired cooling back there.
>
>
>     I almost think of it as a birds nest (blown to smithereens), but
>     the airplane was hangered (not exclusively protective of birds),
>     but was pointed towards the outside while the hanger was open
>     during the two days.
>
>                        
>
> I'm reminded that birds only need a half hour of unattended time to 
> stuff a bunch of nesting material inside the cowling.
>
> This is the season for birds nests.  Look more carefully than I 
> apparently did.
>
> Lucky there was not a small fire under the cowling.
>
> Jeff L
> LIVP
>