What does the LDG Memo display for flaps if the flight controls are operating in Alternate or Direct law modes?

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The LDG Memo displays "FLAPS....FULL action item will display as FLAPS.....CONF3" when the flight controls are operating in Alternate or Direct law modes. In these modes, certain protections and functionalities are limited. Specifically, the landing configuration for the flaps is not allowed to extend to the FULL position due to the altered operational state of the flight control system.

When in Alternate or Direct law, the aircraft relies on reduced control laws which affect the operation of the flaps. Instead of showing the FULL configuration, the system indicates that the best possible landing flap configuration (CONF3) is the maximum that can be safely achieved under the current circumstances, reflecting the need for pilots to be aware of the reduced performance and handling qualities available through the flight control system.

This indicates to the crew that they may need to adjust their approach and landing strategy, as the primary functionality of the flaps is affected by the loss of normal flight control laws. Understanding this helps ensure awareness of the aircraft’s capabilities and limitations during critical phases of flight.

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