Impromptu waypoints may be inserted into the flight
plan interrupting execution of the current flight plan
leg. The impromptu point may be any valid waypoint
format. Refer to Figure 3C-48 and Table 3C-39 and
Figure 3C-49 and Table 3C-40 for an illustration of the
two methods of executing Direct-To operations to
impromptu waypoints. When performing a Direct-To
the scratchpad waypoint, the active waypoint will be
pushed one waypoint into the future and the
waypoint. When the MAP is the active waypoint,
executing a Direct-To the scratchpad waypoint will
move the MAP into history (not future), allowing
Waypoint insertion between the FAF and the MAP is
prohibited, even when the FAF is in history.
Figure 3C-48. Direct-To an Impromptu Waypoint
Table 3C-39. Direct-To an Impromptu Waypoint Procedure
Press Direct Function Key - DIR.
Enter waypoint in scratchpad.
Insert impromptu waypoint.
When the Direct To becomes the active waypoint, the course indicator displays dir.