Scheduled maintenance was carried out on General Electric MS6001B gas turbine plant and Т-15.5/20.3-5.4/0.2 steam turbine (Kaluga turbine plant) of second power unit of the station. Under the maintenance program gas turbine stripping was fulfilled with rotor roll-out and replacement of 1…3 stage blades, inspection of bearings condition and lubricating oil replacement. For steam turbine opening of the cylinder, rotor roll-out, inspection of mounting bearings and hot path components were carried out. After maintenance and repairing second power unit was put into operation. All works were produced by the specialists of Intertechelectro-Turbomontazh (a part of Intertechelectro Group of Companies).