spaceflightmeow
Active Member
After tightening the bolts on the right wing Z-brackets for the first time, I noticed some cuttings and residue on the bolt.
http://imgur.com/a/aUbmS
EDIT: airguy, good eye. The nutplate at the bottom of the image did have a bucking bar hit it on the threaded part.
After removing the bolt and cleaning it, a bunch of black gunk came off. Some of this is material from the nutplate.
Looking at the hole in the Z-bracket and spar web, it appears that the bolt threads have cut threads in the spar web (and also a little bit in the Z-bracket)
How bad is this? Can I repair it by reaming the holes smooth?
http://imgur.com/a/aUbmS
![XXTvFGX.jpg](/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FXXTvFGX.jpg&hash=641803dd9ae14ba130399c0100acdbfc)
EDIT: airguy, good eye. The nutplate at the bottom of the image did have a bucking bar hit it on the threaded part.
After removing the bolt and cleaning it, a bunch of black gunk came off. Some of this is material from the nutplate.
![phh1831.jpg](/proxy.php?image=http%3A%2F%2Fi.imgur.com%2Fphh1831.jpg&hash=968c9da130fb06784cdfccf3f31b1bc8)
Looking at the hole in the Z-bracket and spar web, it appears that the bolt threads have cut threads in the spar web (and also a little bit in the Z-bracket)
![WY952N0.jpg](/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FWY952N0.jpg&hash=f89e3a763cac1b230b908cc811675db9)
How bad is this? Can I repair it by reaming the holes smooth?
Last edited: