Which of the following is NOT a privilege of someone holding an inspection authorization?

The privilege of someone holding an inspection authorization (IA) encompasses a range of authoritative tasks related to aircraft maintenance and inspections. However, inspecting and approving an aircraft for a continuous airworthiness program is not a standard privilege associated with holding an IA.

An IA can perform annual inspections required by regulations and approve aircraft for return to service after these inspections. They also have the authority to approve major repairs and alterations after ensuring that the work complies with regulatory standards. Supervising maintenance personnel is within the scope of an IA's duties, as they can guide and oversee maintenance practices to ensure compliance with safety and regulatory requirements.

On the other hand, a continuous airworthiness program involves ongoing inspections and maintenance oversight, which can include aspects managed by designated airworthiness representatives or other personnel rather than being a direct privilege of the IA. Thus, option C is accurately identified as not a privilege afforded specifically to the holder of an IA. This distinction highlights the IA's role primarily in annual inspections and approvals directly linked to the return to service of an aircraft, which is a critical aspect of maintaining aviation safety.