Today we worked on steps from 5 to 8 25is/U-04, first we fastened with clecos the parts F-1237B, F-1237D, and F-1237C-L & -R back onto the F-1237A. then we made Final-drill #12 the two holes in both lower corners of the seatback assembly, in these steps we first started using a drill #19 to enlarge the hole little by little to help the output of the chip when we drilled with a drill #12. then we disassemble the seatback assemble and deburred the holes, later we fastened with clecos again and riveted the part, last we bolted the f-00120-R an F-00121-L to the lower corners ot the seatback, the torque that we used was 20 inch pounds.
