During landing and shutdown, when is the WHEEL page replaced by the DOORS page?

The WHEEL page is replaced by the DOORS page when the last engine is shut down. This process is part of the A320's operational protocol, wherein the systems shift focus based on the aircraft's phase of operation.

During landing and shutdown, once the pilot has completed the necessary steps for shutting down the engines, the aircraft transitions from one operational context to another. Shutting down the last engine indicates that the aircraft is no longer in flight operations, but is in a ground state where other systems, such as those related to door management, become more pertinent. Therefore, it makes sense that the display would shift focus to the DOORS page, which provides information on the status of the aircraft's doors for safety and operational readiness.

This transition helps the flight crew manage ground operations effectively, ensuring that all procedures regarding the doors are monitored as they prepare to deplane passengers or service the aircraft.