Who must accompany crewmembers who are not current or qualified?

The correct answer emphasizes the importance of safety and proficiency when operating an aircraft or any complex system where crew performance is critical. A qualified Flight Instructor (FI) or Safety Instructor (SI) brings essential skills and knowledge to ensure that crewmembers who lack current qualifications receive proper guidance and oversight.

This is particularly important because unqualified or non-current crewmembers may not be familiar with current procedures, aircraft systems, or safety protocols. The presence of a qualified FI/SI ensures that these individuals are not only monitored but also receive instructional support to help them regain their proficiency. This pairing helps to mitigate potential risks associated with untrained personnel operating in a complex environment, thereby enhancing overall safety and operational effectiveness.

In contrast, having another unqualified crew member, a safety officer, or a senior instructor with no specific qualifications to provide instruction might not fulfill the necessary safety standards required for effective training and oversight. The role of the qualified FI/SI is critical in maintaining operational safety and ensuring that all crew members are adequately trained to work in their roles.