Amazonjet Posted April 8, 2022 Report Share Posted April 8, 2022 On my 2008 CTLS, after removing a ceiling cover I noticed a plugged 1/4 hose/tube sticking out of the wing root from the fuselage. It runs overhead somewhere. Upon further investigation there was a 2nd plugged hose on the fuselage wing root running overhead behind the windscreen or maybe running down to the instrument panel, and a 3rd plugged hose coming from the left wing. My pitot tube is on the right wing. Besides the temperature sensor and navigation light I am not aware of any other items in the left wing. Does anyone know what this could be? I hope it is not some sort of fuel venting that has been disconnected… Quote Link to comment Share on other sites More sharing options...
Anticept Posted April 8, 2022 Report Share Posted April 8, 2022 That's the balance tube between the wings. It keeps their internal pressures equal. That *needs* to be connected. Right now you have fuel fumes being blown into the cockpit and under certain flight attitudes, even will leak fuel into it. Both wings have a tube coming out of them, and they connect to a tube running through that tunnel just in front of the flap mechanism on the top of the airplane cabin. Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted April 8, 2022 Report Share Posted April 8, 2022 The manufacture's approval for installing the fuel vents in the caps on the very early CTLS require that the vent hoses be plugged. 08 04 30 FD Manufacturer Approval for CTLS 07-11-13 through 08-01-16 Fuel tank cap vent (2).pdf Quote Link to comment Share on other sites More sharing options...
Anticept Posted April 8, 2022 Report Share Posted April 8, 2022 I didn't see the plug on my tiny phone screen. Makes sense. Thanks tom for clearing that one up for me too! Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted April 8, 2022 Report Share Posted April 8, 2022 There were just a few of the first CTLS that had problems. There was one in Pennsylvania where they were working on the vents and exploded a tank when they tried to use air pressure to clear the vent. That was a bad day for someone's new airplane. Quote Link to comment Share on other sites More sharing options...
Skunkworks85 Posted April 8, 2022 Report Share Posted April 8, 2022 4 hours ago, Tom Baker said: The manufacture's approval for installing the fuel vents in the caps on the very early CTLS require that the vent hoses be plugged. 08 04 30 FD Manufacturer Approval for CTLS 07-11-13 through 08-01-16 Fuel tank cap vent (2).pdf 367.78 kB · 8 downloads Tom, What would be the recommend plug for a tube like that? I doubt it is a bolt. Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted April 8, 2022 Report Share Posted April 8, 2022 2 hours ago, Skunkworks85 said: Tom, What would be the recommend plug for a tube like that? I doubt it is a bolt. Honestly anything the will seal of the line and not fall out should work. Quote Link to comment Share on other sites More sharing options...
Anticept Posted April 8, 2022 Report Share Posted April 8, 2022 6 hours ago, Tom Baker said: There were just a few of the first CTLS that had problems. There was one in Pennsylvania where they were working on the vents and exploded a tank when they tried to use air pressure to clear the vent. That was a bad day for someone's new airplane. I bet it barely registered a couple psi in the tank before it peeled open too. Quote Link to comment Share on other sites More sharing options...
GlennM Posted April 9, 2022 Report Share Posted April 9, 2022 6 hours ago, Tom Baker said: Honestly anything the will seal of the line and not fall out should work. Golf tee Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted April 9, 2022 Report Share Posted April 9, 2022 23 minutes ago, GlennM said: Golf tee Golf tees tend to be tapered, and don't stay in place as well. Quote Link to comment Share on other sites More sharing options...
Amazonjet Posted April 9, 2022 Author Report Share Posted April 9, 2022 I’m pretty sure they are bolts with a zip tie. A bolt with a long blank shank and the treads cut off would have been optimal. I do occasionally smell fuel and not when I’m topped off. Maybe they wing ones are leaking a bit…. Quote Link to comment Share on other sites More sharing options...
GrassStripFlyBoy Posted April 9, 2022 Report Share Posted April 9, 2022 7 hours ago, Amazonjet said: I do occasionally smell fuel There are lots of locations from the wings, to the shut off value, and back through the firewall that can leak. Might want to examine the lines / connections / filter area behind the panel. That is often the source of fuel smell in cockpit and something to not ignore. Quote Link to comment Share on other sites More sharing options...
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