1. Removed 6B5-4 (both sides) and 6B5 2. 2. Marked new rivet locations on 6B5-4s, punched and drilled with #40 bit. 3. Clecoed 6B5-4s to 65B5-2. 4. Back drilled new rivet locations with #40 bit. 5. Removed 6B5-4s from 6B5-2. 6. Reinstalled 6B5-2 and 6B5-4s in fuselage. 7. Positioned channel 6B5-6 on stbd side, and clamped in position. 8. Back drilled 6B5-6 through 6B5-4 and 6B5-2 with #40 bit. 9. Clecoed 6B5-6 to 6B5-4 and 6B5-2. 10. Back drilled stbd fwd fuselage skin and aft stbd fuselage skin to 6B5-2. 11. Repeated steps 7-9 for the port side. Step 10 has not yet been accomplished on the port side.
