Who may perform a 100-hour inspection on certain aircraft operating for hire?

The ability to perform a 100-hour inspection on aircraft operating for hire is specifically granted to appropriately rated mechanics. These individuals are certified by the Federal Aviation Administration (FAA) and possess the necessary skills, knowledge, and training to carry out such inspections, ensuring compliance with safety and regulatory standards.

This inspection is a critical maintenance activity that ensures the aircraft is in safe operating condition, especially for those flying for hire, as these operations are subject to stricter safety requirements due to the commercial nature of the service. Appropriately rated mechanics must hold an Airframe and Powerplant (A&P) certificate, qualifying them to both conduct the inspection and perform any needed maintenance or repairs based on the findings of the inspection.

The other options do not align with the regulatory requirements for conducting this type of inspection. FAA design engineers, while knowledgeable, do not have the certification needed for hands-on maintenance work. Certified pilots, even if they hold an airline transport pilot or commercial license, do not have the mechanical ratings necessary for inspections. Similarly, state certified technicians, while they may have expertise, do not meet the FAA's requirement for conducting inspections on aircraft operating for hire unless they also carry the appropriate FAA certifications.