Selecting Approaches
In order to select an approach, you must first
have an active direct-to or flight plan which
terminates at an airport with a published approach.
1. Press the PROC key to display the
Procedures Page.
2. Rotate the large right knob to
highlight "Select Approach?" and press
ENT.
3. A window will appear listing the available
procedures. Rotate the large right knob
to highlight the desired procedure and
press ENT.
4. A second window will appear listing the
available transitions. Rotate the large
right knob to highlight the desired
transition waypoint and press ENT. (The
approach "Vectors" option assumes you
will receive vectors to the final course
segment of the approach and will provide
navigation guidance relative to the final approach course.)
5. Rotate the large right knob to highlight "Load?" or "Activate?" and
press ENT. ("Load?" will add the procedure to the flight plan without
immediately using it for navigation guidance. This allows you to continue
navigating the original flight plan, but keeps the procedure available on the
Active Flight Plan Page for quick activation when needed. "Activate?"
overrides the "enroute" portion of the active flight plan, proceeding directly
to the "approach" portion.)
6. For precision approaches and some non-
precision approaches, a reminder window
will appear indicating that GPS guidance
on such approaches is strictly for monitor-
ing only—use the VLOC receiver and
external CDI (or HSI) for primary naviga-
tion. To confirm this reminder, highlight
"Yes?" and press ENT.
Not all approaches in the database are approved for GPS use. As you select 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 may be used for supplemental navigation
guidance only. If the GPS receiver cannot be used for primary guidance, you must
use the appropriate receiver for the selected approach (e.g., VOR or NDB). The final
course segment of ILS approaches, for example, must be flown by tuning the VLOC
receiver to the proper frequency and coupling the VLOC receiver to the external CDI
(or HSI).
A selected approach may be activated or loaded. Loading the approach adds the
procedure to the flight plan without immediately using it for navigation guidance. You
can continue navigating the original flight plan, but the procedure is available for
quick activation when needed. Activating the approach overrides the "enroute" portion
of the active flight plan, proceeding directly to the "approach" portion. Activating the
approach also initiates automatic CDI scaling transition as the approach progresses.
In many cases, it may be easiest to "Load" the full approach while still some
distance away, enroute to the destination airport. Later, if vectored to final, use the
following steps to select "Activate Vector-To-Final"—which makes the inbound course
to the FAF waypoint active. Otherwise, activate the full approach using the "Activate
Approach?" option.
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