Stabilizer Torque Tube Removal

How to keep the Cessna 170 flying and airworthy.

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flyboy122
Posts: 324
Joined: Mon Apr 21, 2014 2:30 am

Stabilizer Torque Tube Removal

Post by flyboy122 »

Hi All,

I noticed a little surface rust on my stabilizer torque tubes the other day. The section inboard of the stab itself was easy enough to clean up, but the with a light I can see that inside the stab the tube has some surface rust as well. This got me thinking. How is that torque tube attached? I didn't look super close, but a cursory glance didn't pop out any bolts or such. The IPC isn't really descriptive either. I'm hoping I just missed something obvious and you can all chuckle at my dumb question.

Thanks,
DEM
Metal Master
Posts: 526
Joined: Thu Dec 02, 2004 1:52 am

Re: Stabilizer Torque Tube Removal

Post by Metal Master »

170 A elevtaor dissassembeled.jpg
It will not come apart without disassembly. This is a picture of the inside of a customers 170A elevator I took apart for repair of wind damage and Corrosion control, the 170A and 170B are similar in this particular area.
This had both upper and lower skins replaced, The internal parts glass bead blasted and then two part epoxy primed with DP 40 primer. Then riveted back together.
Jim
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A&P, IA, New owner C170A N1208D, Have rebuilt some 50 aircraft. So many airplanes, So little time!
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Bruce Fenstermacher
Posts: 10422
Joined: Tue Apr 23, 2002 11:24 am

Re: Stabilizer Torque Tube Removal

Post by Bruce Fenstermacher »

All of the elevators, 170, L-19 or 190/195 are constructed the same though they are not the same. The 170 and 170A are the same and seem to suffer worse from corrosion on and in the control tube or the outer rib which is much more exposed than the later B model.
CAUTION - My forum posts may be worth what you paid for them!

Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
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