Finished pilot drilling the SNX-F24-01 cross tie box. Took lots of measurements and had to reposition several times to maintain the 3" width and to ensure squareness.
Up-drilled all holes. Disassembled, deburred, re-assembled. At this point, only the top surface & web are riveted, but the lower surface is final-drilled in preparation for riveting after installation into the fuselage.
