Today, steps 2 and 3 24iS / U-04 were carried out in which match-drill # 30 was performed on the 12 holes in the sides of the roll bar assembly into the F-1231D. for this step first match drill # 40 was made to avoid that the burr removed enlarges the hole, when drilling to a smaller size the other side of the burr would be easier when drilling to the extent that is specified, when finished, the parts they were deburred and the F-1231D's were applied primer. Step 7 and 8 23is/u-07 were also carried out in which the skins F-01270-L-1 & R-1 were riveted to the whole fuselage that had been cleated one day before and marked with feathers in the places where it was to be riveted , for this step we started with the Cherry rivets, then with the cs4-4 and finally with the lp4-3.
