Design GPA must provide recovery with major overhauls of nominal power and efficiency indicators. The degree of deterioration depends mainly on the design perfection (stablesion geometry of parts and components in the long running time), its suitability for recovery characteristics as during the operation and during maintenance and repair. However, the real value reduction indicators can be much larger. Regulation predictive maintenance pumping units OAO Gazprom has advanced tolerances depending on belonging to one of the four classes of the technical state of gas turbines and PPM: in good, satisfactory, unsatisfactory and undesirable operation. To meet the challenges of diagnosis, modeling and optimization of GPA ABAC recommended to use advanced algorithms that take into account the individual characteristics of a new generation of GPU, the effect of the error levels and shifting nature of gasdynamic characteristics of multi mill. In programming washes GW developer STU must consider the climatic conditions of operation GTU. Application of anti-freeze at temperatures below freezing outside air does not give the desired effect. Requires the development of technical measures to maintain the technical state of the GTU. For continuous monitoring of the technical state of the park equipment GPA recommended hardware and software diagnostic tools of its elements in a complex automated systems of technical diagnostics. The authors developed a model of indirect shift HDC based on thermal testing in the process of use GPA, and the experimental application of the correction factor for indirect shift HDC significantly improves the accuracy of the calculation and assessment of technical condition.