Today the steps from 3 to 8 22iS / U-03 were carried out in step 3, the completion of the countersink # 40 was completed in the holes of the piece F-01272-1 where the rows were placed for this step a bar was manufactured with drill holes with the same distance between each hole of the nutplates, this was cast under the piece in order to center the pilot of the countersink cutter and avoid its sliding towards the sides.
In piece F-01201B-1 the pieces F-01257-1 were cast and nutplates K1000-08D were installed.
Step 1 22iS / U-04 was also performed in which machine countersink # 40 the nutplates attach holes in F-01217-L.
