What is the typical response if a beacon code cannot be assigned?

The typical response when a beacon code cannot be assigned is to make handoffs based on previous assignments. This approach allows for continuity in tracking and communication with the aircraft without having to interrupt the operational workflow. By relying on previous beacon code assignments, controllers can maintain situational awareness and ensure safe operations.

Using past assignments helps in leveraging existing information about the aircraft's intentions and movements, which can be particularly beneficial in busy airspace. It allows the controller to effectively manage the flight without creating unnecessary confusion or delay that might occur if a blank slate was adopted due to the unavailability of a new code.

This strategy is not only practical but aligns with standard operating procedures that prioritize safety and efficiency in air traffic management. Other options, while potentially relevant in different scenarios, do not directly address the situation where a beacon code cannot be generated as a standard operational response.