overhaul

In the context of manufacturing, particularly in the aerospace industry, an "overhaul" refers to a comprehensive maintenance process for aircraft and their components. This involves the complete disassembly of airframes and engines after specified periods of operation, typically around five years for airframes and more frequently for engines.1

During an overhaul, each part is meticulously inspected for wear and damage, often using advanced methods like X-ray and ultrasonic testing to detect even minute defects. Defective components are repaired or replaced, and corrosion is removed. This process also includes implementing any recommended modifications or improvements to enhance performance, such as strengthening structural components.1

Engines undergo a similar rigorous process, with individual parts being disassembled, inspected, and measured against strict manufacturer tolerances. After reassembly, engines are tested extensively. Manufacturers play a key role by supplying necessary parts, documentation, and expert advice throughout these maintenance and overhaul operations.1