Who is authorized to inspect and approve an engine major repair for return to service?

The authorization to inspect and approve an engine major repair for return to service lies specifically with a certificated mechanic who holds an inspection authorization (IA). This is due to the advanced level of knowledge and experience required for oversight of major maintenance and repairs, which includes a thorough understanding of regulatory standards as outlined by the Federal Aviation Administration (FAA).

A certificated mechanic with an inspection authorization has demonstrated the ability to perform and supervise inspections and approve work for return to service, which is particularly critical following a major repair. Their additional training and experience equip them with the necessary tools to ensure that all repairs conform to FAA regulations and the manufacturer’s specifications, thereby maintaining safety standards.

Other options, such as any licensed aircraft mechanic or a qualified technician from the manufacturer, do not necessarily hold the same level of authority concerning inspections after major repairs. While Federal Aviation Inspectors have oversight roles and ensure compliance with aviation regulations, they do not typically perform hands-on inspections or approvals for specific repairs. Thus, the designation of a certificated mechanic with inspection authorization is key in this context, ensuring that the maintenance process meets the rigorous standards required by the FAA.