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Old 01-14-2019, 12:00 PM
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rolick22 rolick22 is offline
Join Date: Oct 2013
Location: Powell, OH
Posts: 151

Originally Posted by NinerBikes View Post
Is this modification for older RV-12's now standard with the 2 parts added to the RV-12 iS kits during assembly?
Yes the gusset are the same on the original 12 and the 12iS. The part that is different are the way the upper and lower horns are mounted to the spar. Itís a totally different set up using new designed brackets that are riveted instead of bolted.
David Rohrlick
Empennage Finished
Wings finished to iS standard
iS Finishing Kit Finished
iS Fuselage Finished (mostly)
iS Engine Kit Finished
iS Avionics Kit in work
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Old 03-09-2019, 11:41 PM
jetset44 jetset44 is offline
Join Date: Nov 2018
Location: Kirkland
Posts: 2
Default Misaligned holes?

First-time poster here. I have a pre-iS empennage kit and am installing this service bulletin during the build instead of retrofit. I just clecoed the HS-01231C gussets into place on the HS spar (Step #22) and found the holes in the gusset don't align well with the matching holes on the inboard hinge brackets. Both left and right brackets and top and bottom are all out of alignment similarly. See the attached photos below. Did anyone else have this problem or have any suggestions? Help would be appreciated!


Last edited by jetset44 : 03-09-2019 at 11:46 PM.
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Old 03-10-2019, 12:21 AM
rv9builder rv9builder is offline
Join Date: Jan 2005
Location: Irvine, CA
Posts: 776

There are two versions of the HS-01231C gusset. It's possible you received the wrong one for your kit. See this thread for more information, especially post #18 and 22.
RV-12iS Fuselage
RV-9A Project: Sold

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Old 03-10-2019, 07:34 AM
Mich48041 Mich48041 is offline
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 2,869

Steve (Jetset44),
Welcome to VansAirforce
Joe Gores
RV-12 Flying
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Old 03-10-2019, 11:58 AM
jetset44 jetset44 is offline
Join Date: Nov 2018
Location: Kirkland
Posts: 2

Thanks for the tip, RV9builder! I searched VAF for info but missed that thread. I didn't realize there were two versions of that gusset, but it appears I have the correct one. Looks like a call to Van's tech support is in order...

Thanks for the welcome, Mich48041! Been lurking here for over a year but just now posted.

Last edited by jetset44 : 03-10-2019 at 08:33 PM.
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