In the event of an expected delay, what should you communicate when the aircraft enters your area?

Communicating a delay update along with holding instructions if necessary is essential for several reasons. First, providing the delay update informs the flight crew about the expected situation, allowing them to better prepare for any adjustments in their operations and flight plans. It helps pilots align their expectations with the realities of air traffic control directives and the operational environment.

When the aircraft enters your area, holding instructions may be required based on the traffic situation or runway availability. By including both the delay update and holding instructions, you ensure that the pilots have clear and actionable information to safely manage their flight until they can proceed or land. This approach enhances situational awareness and promotes safety by minimizing uncertainty and miscommunication in an already stressful situation.

Other options, such as only providing the expected landing time or merely giving a new frequency, would not offer the comprehensive guidance that the flight crew needs to traverse the delay effectively. Sharing weather information at the destination, while useful, addresses a different aspect of flight operation and does not directly relate to managing the delay upon entering the airspace. Thus, option A encapsulates the most critical information required for the effective management of the situation.