6-24
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. P
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
6.14 Points to Remember for All Procedures
• The GTN 6XX Map page is designed to complement your printed approach
plates and vastly improve situational awareness throughout the approach.
However, you must always fly an approach as it appears on the approach plate.
• The active leg (or the portion of the approach currently in use) is depicted
in magenta on the Map page. As you fly the approach, the GTN 6XX
automatically sequences through each leg of the approach unless “SUSP”
appears at the annunciation bar at the bottom of the display. “SUSP”
indicates that automatic sequencing of approach waypoints is suspended on
the current leg and normally appears at holding patterns and upon crossing
the missed approach point (MAP), for Climb to Altitude legs, and for Hold
to Altitude legs.
•
For roll steering autopilots: roll steering is terminated when approach mode
is selected on the autopilot and is available once the missed approach is
initiated.
• If Vectors-to-Final is activated while on the “FROM” side of the FAF, automatic
waypoint sequencing is suspended and the SUSP annunciation will appear.
Automatic waypoint sequencing will resume once the aircraft is on the “TO”
side of the FAF and within full-scale deflection.
• For all procedures, make sure to check the runway, transition, and all
waypoints.
• Most legs are
“TO”
legs on which the TO/FROM flag on the CDI indicates
“TO”
and the Distance field on the flight plan decreases as you navigate
along the leg. However, some procedures include legs which are
“FROM”
legs. On these legs, the TO/FROM flag on the CDI indicates
“FROM”
and the
Distance field on the flight plan increases as you navigate the leg.
“FROM”
legs are typically found on procedure turns and on some missed approach
procedures.
CAUTION: Not all autopilots will follow guidance when on a heading leg
using NAV, GPSS, or APR mode on the autopilot. Heading legs for procedures
can be identified by “HDG XXX°” in white on the Flight Plan page, as well
as the procedure chart indicating that the aircraft must fly a particular
heading. Certain autopilots will revert to a “Roll Only” or “Wings Level”
mode on these leg types and the pilot must engage the heading (HDG)
mode of the autopilot and set the heading bug appropriately in order to
use the autopilot on these legs.
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