During 1931-1932 at large power plants of the USSR - Zlatoust, Chelyabinsk, Ivanovo, Baku, etc. - there were systematic accidents of individual boilers of motors, turbines, generators, etc., which disabled them for more or less long periods and reduced the power of power plants. However, contrary to the opinion of technical specialists about technical illiteracy or negligence of the lower and middle levels of service personnel, the investigation fabricated a case on the wrecking activities of counter-revolutionary groups...