Finished drilling L lower longeron holes. Countersunk L landing gear weldment common holes for #8 screws. Deburred all holes. Radiused aft end of L lower longeron. Temporarily bolted and clecoed L lower longeron in place. Drilled all R lower longeron holes. Countersunk R landing gear weldment holes. Deburred all holes. Radiused aft end of R lower longeron. Temporarily bolted and clecoed R lower longeron in place.