The Aircraft Inspection industry, classified under SIC Code 9621, involves the regulation and administration of transportation through the inspection of aircrafts. This industry is responsible for ensuring that aircrafts are safe to operate and comply with regulations set by aviation authorities. Aircraft inspections are conducted at various stages of an aircraft's life cycle, including pre-flight, post-flight, and during maintenance checks. Inspections involve a thorough examination of the aircraft's structure, systems, and components to identify any defects or potential safety hazards. The Aircraft Inspection industry plays a critical role in maintaining the safety of air travel and preventing accidents.