An operation of Progressing Cavity Pumps (PCPs) was challenged by a number of factors at the mature field. Taking into account a huge number of PCP wells, the scale of the problem was getting serious and financially sensitive. To investigate operational challenges from various perspectives, the customer invited most recognized PCP service authorities to conduct Root Cause Failure Analysis (RCFA) under complex wells Audit Program. This paper discusses the whole process, including initial well screening and ends up with final recommendations. Information provided in this paper could be considered as a practical, already implemented process to resolve PCP operational issues. It discusses the majority of PCP Specific applications and comes with possible solutions and outputs of such decisions.