carefully.

Note: In the location under the forward spars, support the wing half at normal height by any stable means, such as a ladder and padded lashed block. This will support the wing as the wing strut is removed. Avoid excess vertical deflection of the wing as this may stress the wing root attach point.

6. Using suitable light and the access gained by the wing strut hole, visually inspect the front of the rear spar and the rear of the front spar for abnormal bulges or erupted spar surfaces.

7. Remove the wing tip fairing by drilling out the rivets (using a #30 drill or smaller), and inspect the spars for abnormal bulges or erupted spar surfaces in the “U channel attach area" of each spar, and the outer lengths to the splices of the sheet metal spar extrusions.

Note: Inspection of the front of the front spar may be performed by using the existing inspection holes and a “light trolley" on the upper aileron cable ( the illumination from the light trolley must be sufficient to provide for adequate inspection). Attach the light trolley to the upper aileron cable with a tie wrap, connect a wire or rope of suitable length to the tie wrap and use this as a means to move the light along the face of the spar.