Section 4 – Normal procedures
ADDITIONAL GUIDANCE FOR RNAV GPS
AFMS N°D07 FOR GARMIN GFC700 AUTOPILOT AND VARIABLE PITCH PROPELLER EQUIPPED
AEROPLANES
Route modifications in the terminal area may take the form of radar headings or ‗direct
to‘ clearances and the flight crew must be capable of reacting in a timely fashion.
Although a particular method is not mandated, any published altitude and speed con-
straints must be observed.
In the event that either the GPS or the EGNOS signal is not available at the destination, by
the nature of the system, and its susceptibility to interference, there exists the possibility
that it will also be unavailable over a wide area. Therefore it is probable that the signal will
also be unavailable at a nearby diversion aerodrome.
Notwithstanding any normal operational requirements for the identification of an alternate
aerodrome, where a RNAV approach is to be flown in conditions where a visual approach
will not be possible; pilots should always ensure that either:
1) A different type of approach system is available at the destination, not de-
pendent on GPS data and for which the weather is forecast to be suitable to
enable a landing to be made from that approach, or;
2) There is at least one alternate destination within range, where a different type
of approach system is available, which is not dependent on GPS data and for
which the weather is forecast to be suitable to enable a landing to be made
from that approach.
9.1 APPROACH APPLICATIONS
When GPS is not approved for the selected final approach course, the
message “NOT APPROVED FOR GPS” is displayed. GPS provides
guidance for the approach, but the HIS must be switched to a NAV re-
ceiver to fly the final course of the approach
f certain GPS parameters (SBAS, RAIM, etc.) are not available, some pub-
lished approach procedures for the desired airport may not be displayed in
the list of available approaches.
An Approach Procedure (APPR) can be loaded at any airport that has one available, and provides
guidance for non-precision and precision approaches to airports with published instrument approach
procedures.
Only one approach can be loaded at a time in a flight plan. If an ap-
proach is loaded when another approach is already in the active flight
plan, the new approach replaces the previous approach. The route is de-
fined by selection of an approach and the transition waypoints.
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