Which action is indicated by holding the takeover button on the captain's sidestick?

Holding the takeover button on the captain's sidestick is designed to grant the captain priority over the F/O's sidestick inputs. In the A320's fly-by-wire system, both the captain and first officer have sidesticks that can influence aircraft control. When the captain holds the takeover button, it ensures that the inputs from the first officer's sidestick are overridden. This feature is essential in scenarios where the captain needs to assert control of the aircraft, particularly during critical phases of flight or in situations requiring immediate response.

This mechanism reinforces the hierarchical authority in the cockpit, ensuring that the captain can maintain command when necessary, thereby enhancing safety during flight operations. The focus is on creating a clear procedure in aircraft handling to avoid potential conflicts between pilot commands.