Hydro power plant “Perućica” in Montenegro has been monitored in 2024 by NDT (Ultrasonic testing – UT, and magnetic particles - MT) with a focus on defects found in inlet elbows of units 6 and 7. Having in mind the importance of this power plant, especially from point of view of potential catastrophic consequences in the case of a failure, the elbows with defects were carefully analysed by means fracture mechanics parameters and structural integrity assessment to estimate risk of its further use. In the lower and upper elbow of unit 7 indications have been detected during first magnetic particle testing. At the lower elbow “A-side” a crack with length of 500 mm and depth up to 20 mm was detected. Consequences of the failure are regarded as significant for people, equipment and environment, category 4. Based on likelihood and consequence, risk matrix is made, indicating high level of risk. Based on these results, one can conclude that the inlet elbow A7 is safe for further operation, even in the presence of relatively large crack. This conclusion is also based on the fact that there is no mechanism of crack growth (practically no corrosion and fatigue). Anyhow, since the risk is of high level, repair welding was recommended and performed.