Konstantin:
I don't know that infomation without removing the rudder, but my thought would be to make an access opening on each side of the rudder like maybe a 12X12 square and see whats going on inside and after repairs are made epoxy or screw an inside flange made from a thin piece of hardwood or plastic on the opening and then put the cut panels back with epoxy and fiberglass mat
I don't know that infomation without removing the rudder, but my thought would be to make an access opening on each side of the rudder like maybe a 12X12 square and see whats going on inside and after repairs are made epoxy or screw an inside flange made from a thin piece of hardwood or plastic on the opening and then put the cut panels back with epoxy and fiberglass mat