Jam nuts serve a purpose and that is to prevent actuating arms from becoming disconnected. I found three examples on the same airplane. Two flap jam nuts were loose and should have been caught on a preflight, and the autopilot servo arm jam nut was loose as well. Any of these could cause a flight control problem if they came completely loose.
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The State of Auto Conversions
We take a look at the current auto-engine conversions for homebuilt aircraft. By Patrick Panzera.
Building the ‘Beater – Part 4
It’s hard to believe that several months have gone by again and it’s time...
Loctite and safety wire , I have yet to have one come loose