Today we finished step 6 21iS/U-22, installed all the rivets LP4-3 using the pneumatic riveter, there were 2 rivets that could not be installed because underneath this was a bushing that if we left it installed, we removed the bushing, installed the rivet and then we put back the bushing, then we started step 5 21iS / U-23 was carried out, the nuts were installed.
