1. The pilot holes in the U-00005A-1 were measured, marked and drilled. 2. The hatched areas were removed. 3.The U-00006C-1 was remporally reinstalled to the U-00006A-L-2 & -R-2 witg the indicated hardware, then the U-00005B was attached to the U-00005A-1 with #8 screws. 4. The fit was correct for the U-00005A-1 and U-00005B. 5. Two pilot holes near the top center were match-drilled with an extender #40 bit. Each hole was clecoed. 6. The U-00005B was match-drilled #40 to the U-00005A-1 at each dimple in the U-00005B. 7. Each hole in the U-00005A-1 and U-00005B were final-drilled #19. The U-00005A-1 and U-00005B were disassambled and the U-00006C-1 was discarted.