Overhaul represents one of the most comprehensive and in‑depth types of major repair for industrial, power‑generation, refinery, and infrastructure equipment. In this process, the entire system or equipment is taken out of service and completely disassembled, cleaned, measured, tested, worn‑out parts replaced, and finally reassembled and recommissioned. The overhaul inspection acts as the core of this process, with the aim of ensuring equipment health, identifying hidden defects, preventing sudden failures, extending asset lifetime, and improving safety. The Importance of Inspection