Drilled the "cover support" ribs for snap bushings. Preped and primered, then riveted in place on the F904 "forward" center section. Next, i drilled and installed the F633 control column mounts in place on the "rear" center section. Fabricated the F904-J "center section spacers" from aluminum tube and used the drill press to "sand" the ends clean and to EXACT length.
The Center section is now stored for later assembly
