Nav Aid data is loaded into the NGX when the airport is added in the RTE, ORIGIN entry of the CDU. If an error appears it indicates a problem with the produced Nav Data and you should report the issue on the forum.

Check each SID, STAR, Approach and all the Transitions by programming the CDU and step by step following the LEGS and visually checking on the DU.

Notice where an overfly of a waypoint would make the flight path better or enable travel on a correct radial. Tick the OverFly tick box for the relevant direction in the Nav Data Tool.

Make any Direction Type changes as necessary and then regenerate the Nav Data. Reload the Nav Data in the NGX by re-entering the airport in the RTE, ORIGIN entry of the CDU.

Repeat as necessary.

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