I am an instructor, not a builder.  I have experience with the rutan construction method, but very little with lancair.  An owner that I teach has a 360 with the left flap debonding at the trailing edge bond line, shown as an 8 inch crack through the middle of the trailing edge.  I would like to know suggestions on fixing this.  From my experience with the ez's, normaly sanding between the two areas and filling with epoxy would be a normal fix on a non structural surface, but I am concerned  about this with a flight control.  The owner believes filling with a hypodermic needle and super glue will fix this.  I obviously do not agree with this fix and am looking for input.  Thanks.

Luke Alcorn