Which of the following actions must firefighters take in response to an emergency situation declared by an aircraft?

In an emergency situation declared by an aircraft, the primary focus for firefighters is to prepare to assist the aircraft in landing. This involves coordinating with the flight crew and air traffic control to ensure that the runway is clear, that emergency services are ready, and that all safety protocols are in place to facilitate a safe landing.

This action is crucial because the aircraft may face various emergencies, including engine failures, fuel issues, or other mechanical problems. By preparing to assist during the landing, firefighters can be positioned appropriately to respond to any potential hazards, such as fires or structural damage that may occur upon landing.

The other actions would be inappropriate or ineffective in this context. Evacuating the airport could hinder emergency operations. Routine maintenance checks would divert attention and resources away from the immediate emergency response. Informing the media, while potentially important at a different stage, is not a priority in the initial response phase when the focus should be on ensuring the aircraft and its occupants can land safely.