After six months of renovation, the first phase of a total of 4 of these aircraft, returned to service. The scope of these modernization investment was substantial, so you might well speak of a "refurbishment". Possible in the future to be milled in a "language", we decided to convert all of these aircraft to control systems from Heidenhain, in this case the new TNC 530 HSCI.

For later use all the possibilities of this control can, all the guides were replaced, converted to digital control of all drives and replaced all ball screws. Since this conversion also required replacement of electronics made now these thermally sensitive components were housed in new air-conditioned cubicles. After commissioning, our goal is to gradually convert all machines of this type on Heidenhain controls.