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I found a potentially serious problem with the rudder of my 360 during the
pre-flight.  The light tug on the top of the rudder that I always do in the
pre-flight revealed looseness in that the rudder top moved slightly
laterally.

Disassembly of the rudder from the airframe showed that the top rudder pin
had worked its way upward until it was flush with the bottom of the support
arm.  This pin is an AN-4 bolt cut to length and press fit into the support
arm.  I believe that I had added some epoxy to the joint when I originally
pressed the pin into position.  This apparently wasn't good enough.

I fixed the problem by drilling a small hole into the end of the support arm
and through the AN-4 bolt, and then drove a 1/2" long roll-pin into the
hole.  The hinge pin is now securely attached and can't work its way loose.

You might include the "light tug on the rudder" as part of your pre-flight
inspection and at next annual look for movement of the AN-4 pin.

Hal
N360HW

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