Deburred component on left end of the main spar. Primed steel and mating surfaces. Assembled components and torqued the AN3 bolts to 25 lb-in. Applied torque-seal to all torqued bolts. Installed castle nuts and cotter pins on the locking lever components.
Updrilled the AN3 holes in the spar root brackets. Disassembled root components and started deburring them.