Message-Id: <5.1.0.14.2.20010710143004.047db050@pop3.olsusa.com>
Date: Tue, 10 Jul 2001 14:30:48 -0400
To: lancair.list@olsusa.com
From: Marvin Kaye <marvkaye@olsusa.com>
Subject: LIV vent missing on Tony's plane & Fuel Crossover Tube
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Reply-To: lancair.list@olsusa.com

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Posted for "skarkula" <skarkula@email.msn.com>:

 >>I looked in my builder's manual last week to see which vent was at BL 
141.  It appears to be the aluminum line which runs from BL 141 to the NACA 
vent at the wing tip.  No other vent from this wing tank section was 
indicated in the manual. <<

I believe the vent in question is the 1/4 inch diameter hole through the 
main spar shown in Figure 6E3 on page 6-35. Another possibility as to why 
Tony lost fuel is the fuel crossover tube. Apparently, fuel can drain out 
of the main fuel bay, into the leading edge of the wing, leading to fuel 
starvation.  There is a mandatory service bulletin (SB048-0399) to plug 
this tube. But this leads to another concern. There will be a lot of 
un-useable fuel in the leading edge of the wing from BL25.5 to BL56 where 
the fuel passes through the spar (see figure 6F2 page 6-38). I don t like 
carrying this much un-useable fuel. Perhaps the fuel and vent holes in the 
BL52 rib should be plugged (if you haven t closed your wing). At the very 
least a fuel drain plug should be installed near the BL25.5 rib forward of 
the spar.

Regards,

Steve Karkula
LIV-P 20%

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Please send your photos and drawings to marvkaye@olsusa.com.
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