Bonded lastafoam to inner skin on upper surface of wing. Foam extends forward to 1 1/2 inches aft of fwd edge of upper spar cap fwd edge. Foam will be bonded to outer skin and extend aft to this same line. Bonding done with flox/micro mixture. Micro used to form slight contour between foam and spar cap to match airfoil.
After cure, sanded foam with long board to comform with airfoil shape.