Took off the horizontal stabilizer to have a better access to the fuselage. Trimmed the F711 E down elevator stop back as shown on the picture. Drilled the bolt holes through the F912D up elevator stop and the longerons and installed the bolts temporarily.Drilled the rivet holes (#30) through the top deck and the F912D. I positioned and drilled these holes (#40) earlier though the F912D. Rivet the F912D to the fuselade deck (see pictures). Reinstall Horizontal Stabilizer.
