Which switch is found on the cockpit maintenance panel?

The defueling switch is specifically located on the cockpit maintenance panel and is utilized for the purpose of controlling the defueling of the aircraft's fuel systems. This switch allows ground crew and maintenance personnel to manage fuel transfer when the aircraft is on the ground.

This capability is essential in maintenance scenarios, as it provides a safe and efficient method to remove fuel for storage or to prepare the aircraft for maintenance tasks. The location of the defueling switch on the cockpit maintenance panel emphasizes its importance in ground operations and ensures that it is readily accessible to the appropriate personnel.

In contrast, fuel pump switches and landing gear switches are typically not located on the cockpit maintenance panel, as they are standard operational controls used during flight. The engine start switch also serves a different purpose related to initiating engine operation and is similarly found on primary control panels rather than the maintenance panel.