What action should be taken when conducting operations on runways not advertised for use?

When conducting operations on runways not advertised for use, stating the runway in use is essential because it provides clarity and awareness for all parties involved in the operation. By clearly designating the runway being utilized, it ensures that both air traffic control and other aircraft recognize the specific runway in play, facilitating effective communication and safety in the airspace.

In situations where runways are not officially advertised or designated for operational use, it becomes critical for pilots and air traffic controllers to confirm which runway is actively being used to prevent any misunderstandings that could lead to potential conflict or accidents. This communication helps ensure safe operations on the airfield, particularly in busy terminal environments where multiple runways may be present.

The other options involve actions that could normally follow this initial step, but without first stating the runway in use, it would be challenging to execute those other actions effectively. Notifying the control tower and issuing standard traffic instructions would depend on having a clear understanding of which runway is in use, making the initial communication of the runway vital.