Boroscopic Testing is an advanced visual inspection method used to examine internal surfaces and inaccessible areas of equipment without dismantling the component. Using a rigid or flexible borescope equipped with high-resolution optics and illumination, inspectors can capture detailed images and videos of internal conditions. The technique is commonly applied to turbines, heat exchangers, boilers, pipelines, engines, and pressure vessels to identify corrosion, erosion, cracks, deposits, blockages, and other defects. Boroscopic testing provides a fast, cost-effective, and non-destructive solution for condition assessment, preventive maintenance, and failure analysis.