20-2051-30 is part of the Department of Labor's Standard Occupational Classification (SOC) system. It is the code for Aircraft Mechanics and Service Technicians. This occupation works with powered and mechanical aircraft systems to diagnose, install, maintain, and repair aircraft components, accessories and related equipment. They perform regular maintenance procedures, test aircraft systems and adjust components, inspect aircraft engines and landing gear, and inspect and repair aircraft components. They also record work performed and parts used in repair projects, order and purchase parts and equipment, and maintain departmental records.