S201 AFM
7 - AIRPLANE AND SYSTEMS
DESCRIPTION
7.7 - INSTRUMENTS AND
AVIONICS
27/06/2019
SONAIR-S2-D-MAN-006
Page : 7-48
Rev. : A
CDI and VDI indications are equivalent to those of other GPS-based approaches
(e.g.- LPV or LNAV+V). The GTN annunciates
“VISUAL” in the annunciator bar to
indicate a visual approach is active.
When loading, or activating the approach, the GPA and TCH information for that
approach will be displayed on a popup. If there is no vertical guidance available,
the popup will disp
lay “(NO VERTICAL GUIDANCE)”.
Visual approaches are intended to be used as an aid to situational awareness.
Visual approaches are advisory in nature and do not guarantee terrain and
obstacle clearance for the approach runway.
•
Descent VNAV
The GTN can provide multi-waypoint descent baro-VNAV guidance for the
enroute and initial approach phases of flight. Altitudes associated with
instrument procedures are retrieved from the navigation database when the
procedure is added to the flight plan.
Altitudes in cyan on the GTN are valid VNAV guidance waypoints and the GTN
will provide vertical guidance based on the displayed altitude constraints and
default flight path angle (FPA). Altitude colored white are advisory only.
The following are recommendations for using descent VNAV:
-
It is recommended that the pilot ensure the default FPA is the same on
both installed GTNs. Failure to do so may result in different VNAV paths
on each unit.
-
The pilot should verify all altitudes for procedures after loading the
procedure into the flight plan.
NOTE
Approaches based on Advisory Visual Approach operation is to
be used for situational awareness under VFR only