Completed step 6 page 15-02 – trimmed 2 W-1208-R nose ribs with trimmed aft flange removing forward upper and lower flanges per Figure 2. Completed step 7 – trimmed forward flanges per Figure 2 on 4 – W-1208-R untrimmed ribs. Completed step 9 page 15-02 – dimpled rivet holes and dri;;ed center nutplate hole #19 on 1 each W-1208-L and W-1208-R with both aft and forward flanges trimmed. Deburred ribs and primed parts. Installed nutplates and W-00028 plate with specified rivets in Figure 4. Prepared untrimmed W-1208-R nose rib for nutplates per step 10 – deburred and primed.