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Garmin GNC 420 User Manual

Page 95

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GNC 420(A) Pilot’s Guide and Reference

SECTION 6

PROCEDURES

6-11

Figure 6-29 Active Flight Plan Page

DO NOT USE FOR

NAVIGATION

Figure 6-30 Terminal Mode

Refer to Figure 6-30 for the following steps.

7) As in the last example, within 30 nm of the

airport, the GNC 420 switches from enroute
to terminal mode, and the CDI scale transitions
from 5.0 to 1.0 nm, full scale deflection.

8) Just prior to crossing BODRY intersection, a

’HOLD TEARDROP’ alert appears in the lower
right corner of the screen to suggest the proper
holding pattern entry (Figure 6-31). (‘HOLD
DIRECT’ or ‘HOLD PARALLEL’ may be offered
on other similar approaches.)

Figure 6-31 ‘HOLD TEARDROP’ Annunciation

9) As mentioned in the missed approach example,

the Default NAV Page displays a timer during
the holding pattern (Figure 6-32). The timer
can be used to fly the one minute outbound
portion of the holding pattern. (The holding
pattern is displayed on the Map Page and
indicated as the active leg on the Default NAV
Page and the Active Flight Plan Page.)

Figure 6-32 Default NAV Page

10) When crossing the IAF, ‘SUSP’ appears above

the OBS Key (Figure 6-32), indicating that
automatic sequencing of approach waypoints
is temporarily suspended. As the aircraft turns
inbound, ‘SUSP’ is cancelled and the GNC 420
returns to automatic sequencing.

190-00140-20 Rev. K