Who should be notified when aircraft are delayed or a delay is expected?

The correct choice is to notify the Flight Operations Manager or Traffic Management Unit when aircraft are delayed or a delay is expected. This is because these personnel are responsible for coordinating and managing flight operations, including addressing delays. The Flight Operations Manager oversees the overall operational efficiency of flights and is informed of such situations to implement the necessary measures to mitigate the impact of delays on the overall schedule.

In a busy airport environment, timely communication regarding delays is vital to maintain operational flow, safety, and efficiency. The Traffic Management Unit specifically focuses on managing air traffic to prevent congestion and enhance the effective use of airspace. By alerting these units about any delays, they can adjust traffic flow and make informed decisions to optimize the handling of aircraft in the airspace and on the ground.

The other options are less appropriate for this specific situation. While an Air Traffic Control Supervisor plays a critical role in overseeing air traffic control operations, their focus is primarily on immediate air traffic management rather than operational delays. Ground Control deals mainly with the movement of aircraft on the ground and may not be involved in broader operational decisions regarding flight delays. Emergency Services are only involved when there are safety concerns or incidents, making them a less relevant choice for standard delay notifications.