Which statement best describes API 5 personnel?

• A. They are primarily ground-based support
• B. They are actively flying
• C. They are responsible for airway navigation
• D. They handle administrative tasks

Answer: (B)

API 5 personnel are the aircrew actively in flight. The core idea here is that their primary role is to operate the aircraft during missions, meaning they are physically flying rather than being stationed on the ground. Ground-based support, administrative tasks, and even navigational responsibilities describe other aspects of aviation operations, but they don’t capture the defining activity of API 5—being in the air and performing flight duties. So the statement that best describes API 5 personnel is that they are actively flying.