This paper presents the challenges in providing immediate and long term responses to ascertain integrity of a 10-inch subsea oil pipeline which was found impinged underneath a 17.7tonne buckle trigger structure. In February 2024, a routine ROV inspection detected a 3rd party interference with an underwater asset, overturning one buckle trigger structure. Further investigation confirmed the pipeline is buried underneath the structure. Buckle trigger structure is critical to provide a low-friction zone for controlled and engineered lateral buckling mitigation. Although no loss of containment, immediate priority was to establish the pipeline’s integrity. A major challenge was lack of information on pipeline overall configuration and more critically, condition of its local cross-section buried underneath the structure. Swift action was taken to perform gauge pig run to estimate the extent of potential damage. The gauge plate indicated an early estimate of 9.7% diameter dent and using this conservative information, finite element analyses were conducted to ascertain the pipeline’s bending collapse capacity. Utilizing the positional information from ROV’s GPS data, the analysis results indicated sufficient collapse capacity for the expected loads under its current condition. Upon confirming its immediate integrity, the next task was to gather sufficient information to confirm the actual extent of damage in which various inspection methods were deployed such as multi-beam Echo Sounder, In-line Caliper and XYZ inspection. The final in-line Caliper and XYZ inspection data confirmed a much more benign damage than initially estimated, with a maximum reduction in internal diameter of only 0.6%. A confirmatory finite element analysis was performed using all available datasets established that integrity of the pipeline is intact. Swift inspection and analysis enabled timely and precise business decisions to be made at every stage of this journey. This paper discusses detailed steps taken and the technical challenges to determine the pipeline integrity status.