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GNC 420/420A Quick Reference
SELECT AN APPROACH
18
190-00140-21 Rev. F
Editing a flight plan:
1) Press the FPL Key and turn the small right
knob to display the Flight Plan Catalog Page.
2) Press the small right knob to activate the
cursor.
3) Turn the large right knob to highlight the
desired flight plan and press the ENT Key.
4) To add a waypoint to the flight plan, turn the
large right knob to select the point to add
the new waypoint. (If an existing waypoint is
highlighted, the new waypoint is placed directly
in front of this waypoint.)
a) Use the small and large right knobs to enter
the identifier of the new waypoint and press
the ENT Key.
5) To delete a waypoint from the flight plan, turn
the large right knob to select the waypoint to
be deleted and press the CLR Key to display a
‘remove waypoint’ confirmation window.
a) With ‘Yes’ highlighted, press the ENT key to
remove the waypoint.
6) Once all changes have been made, press the
small right knob to return to the Flight Plan
Catalog Page.
Selecting an approach:
1) Press the PROC Key to display the Procedures
Page.
2) Turn the large right knob to highlight ‘Select
Approach?’ and press the ENT Key.
3) A window appears listing the available
procedures. Turn the large right knob to
highlight the desired procedure and press the
ENT Key.
4) A second window appears listing the available
transitions. Turn the large right knob to
highlight the desired transition waypoint and
press the ENT Key. (The approach ‘Vectors’
option assumes the pilot will receive vectors
to the final course segment of the approach
and will provide navigation guidance relative
to the final approach course.)