Employer's role is changing once the construction phase turns to its end and the commissioning is completed. The operation phase is beginning. Availability and maintenance are the upcoming key performance indicators of the project now. How to setup inspection programs in an economic manner? What is a sufficient approach? How the results are to interpret exhaustively? The multiple aspects influencing the stability of the structures should be assessed adequately. OWT is able to provide this service based on its wide offshore engineering experience.