Apply some glue to the profiles of the servo. Install the servo. Thread the wire as shown in the picture.
After installing the servos, assemble the wing spars.
First, deepen the pre-cut slot with the hobby knife, and make sure the slit is clear where the wing and
fuselage meet. Test fit the spar to make sure it sits flush to the surface of the wing.
Squeeze some glue into the pre-cut slot and install the spar , and ensure that it is fully seated and flush to a
little below the surface the wing.