In flight, the engine and wing anti-ice systems operate automatically in case of ice encounter when the ice protection mode selector is in the AUTO position. Which mode triggers automatic operation?

In flight, the engine and wing anti-ice systems operate automatically in case of ice encounter when the ice protection mode selector is in the AUTO position. Which mode triggers automatic operation?

• A. AUTO
• B. MANUAL
• C. OFF
• D. ON

Answer: (A)

Automatic mode is the setting that enables engine and wing anti-ice to engage on its own when ice is encountered. In this mode, the system monitors for icing conditions and activates the anti-ice protections without pilot input, reducing workload and ensuring protection as soon as ice is detected. In manual, the crew must activate it themselves; OFF disables the protection entirely; ON keeps it on regardless of detection. So the mode that triggers automatic operation is the automatic setting.

Automatic mode is the setting that enables engine and wing anti-ice to engage on its own when ice is encountered. In this mode, the system monitors for icing conditions and activates the anti-ice protections without pilot input, reducing workload and ensuring protection as soon as ice is detected. In manual, the crew must activate it themselves; OFF disables the protection entirely; ON keeps it on regardless of detection. So the mode that triggers automatic operation is the automatic setting.