Drilled holes in the C-1010 Pin Blocks. Used scrap tube to hold pin blocks in place. drilled #12 holes for the screws on all pin blocks. Holes drilled parallel to plane axis and not to the skin.
Marked all pin blocks deburred and adapted the holes. attached the blocks to fuselage and checked operation of latch mechanism. little adaptation required for smoother operation. final adaptation after the McMaster seal will be installed