Garmin GNC 420 - Manual (Page 108)

GNC 420(A) Pilot’s Guide and Reference
SECTION 6
PROCEDURES
6-24
3) Fly the outbound course. The Map Page depicts
the flight path extending indefinitely from PMD
VOR (Figure 6-67). The distance (DIS) on the
Default NAV Page, the Map Page, and the
Active Flight Plan Page increases, indicating
the distance back to PMD VOR.
Figure 6-67 Map Page
4) Upon reaching the desired altitude (5000’),
press the OBS Key to return to automatic leg
sequencing. Confirm that ‘SUSP’ no longer
appears directly above the OBS Key.
5) An alert (‘NEXT DTK 126°’) appears, providing
guidance to the inbound course (Figure 6-68)
The actual desired track (DTK) depends on the
ground speed and distance from PMD VOR.
Intercept and fly the inbound course.
Figure 6-68 Waypoint Alert
6) When approaching PMD VOR (the missed
approach holding point), an alert message
in the lower right-hand corner of the screen
recommends the holding pattern entry
procedure (‘HOLD PARALLEL’). When flying
the holding pattern, a timer appears on the
Default NAV Page. The timer automatically
resets on each outbound and inbound portion
of the holding pattern.
7) Note that the GNC 420 again displays ‘SUSP’
above the OBS Key. Automatic waypoint
sequencing is suspended at the missed
approach holding point. A waypoint alert
(‘APPRCHING WPT’) appears in the lower right
corner of the screen each time the aircraft
approaches PMD VOR in the holding pattern.
8) When leaving the holding pattern, press the
PROC Key to reactivate the approach, or select
a different approach, or press the Direct-to
Key to select another destination.
190-00140-20 Rev. K