Garmin G1000 Pilot's Manual page 241

APPROACH OPERATIONS
Since not all approaches in the database are approved for GPS use. When selecting an approach, a "GPS"
designation to the right of the procedure name indicates the procedure can be flown using the GPS receiver.
Some procedures will not have this designation, meaning the GPS receiver can be used for supplemental
navigation guidance only. If the GPS receiver cannot be used for primary guidance, the appropriate
navigation receiver must be used for the selected approach (e.g., VOR or ILS). The final course segment of
ILS approaches, for example, must be flown by tuning the NAV receiver to the proper frequency and selecting
that NAV receiver on the CDI.
All WAAS approaches (LNAV, LNAV+V, L/VNAV, and LPV) are displayed in the list of available approaches
(Figure 5-90) and will give vertical guidance up to the IAF. The WAAS approach may be activated at any point
to proceed directly to the IAF. It should be noted that a lateral flight plan (LNAV) does not include vertical
guidance after the Final Approach Fix.
Approach
Display
Load and/or activate an approach procedure:
1) Press the PROC Key.
2) Highlight 'SELECT APPROACH'.
3) Press the ENT Key. A list of available approaches for the destination airport is displayed (Figure 5-90).
4) Turn either FMS Knob to highlight the desired approach. The WAAS channel and ID for the selected approach
procedure are displayed in the 'APPROACH CHANNEL' field (Figure 5-87).
5) Press the ENT Key. A list of available transitions for the selected approach procedure is now displayed.
6) Turn either FMS Knob to selected the desired transition. The "Vectors" option assumes vectors will be received
to the final course segment of the approach and will provide navigation guidance relative to the final approach
course.
190-00498-01 Rev. A
Figure 5-90 Selecting an Approach
Garmin G1000 Pilot's Guide for the Cessna Nav III
GPS NAVIGATION
Available
Approaches
5-105