The red A/P disc button on the control wheel can accomplish two functions. Which of the following describes those functions?

• A. Disconnect the A/P and interrupt the stick pusher if it is activating
• B. Disconnect the A/P only
• C. Interrupt the stick pusher only
• D. Restart the autopilot

Answer: (A)

The red AP DISC button on the control wheel is meant to give you immediate manual control when automation is active. It performs two actions: it disconnects the autopilot, and if the stick pusher is currently activating to prevent a stall, it interrupts that stick-pusher action as well. This combination lets you take over control quickly and stops any automatic stall-prevention input from continuing. Restoring only one of these functions would not fully hand control back to you, and restarting the autopilot isn’t what this button is for.