Cub Crafters CC18-180 Pilot Operating Handbook page 249

CUB CRAFTERS SECTION 9.5
CC18-180 SUPPLEMENTS-GNS 530
If "RAIM POSITION WARNING" message is displayed
the system will flag and no longer provide GPS based
navigational guidance. The crew should revert to the
GNS 530 VOR/ILS receiver or an alternate means of
navigation other than the GNS 530's GPS Receiver. If
the TAWS or TERRAIN option is installed, it will not be
available and a white 'TER N/A' status annunciator will be
displayed by the GNS 530.
If "RAIM IS NOT AVAILABLE" message is displayed in
the enroute, terminal, or initial approach phase of flight,
continue to navigate using the GPS equipment or revert
to an alternate means of navigation other than the GNS
530's GPS receiver appropriate to the route and phase of
flight. When continuing to use GPS navigation, lateral
position must be verified every 15 minutes using the GNS
530's VOR/ILS receiver
or another IFR-approved
navigation system.
If "RAIM IS NOT AVAILABLE" message is displayed
while on the final approach segment, GPS based
navigation will continue for up to 5 minutes with approach
CDI sensitivity (0.3 nautical miles). After 5 minutes the
system will flag and no longer provide course guidance
with approach sensitivity. Missed approach course
guidance may still be available with 1 nautical mile CDI
sensitivity by executing the missed approach.
REPORT TC10000AFM
Issued: 5/31/05
Date of revision: 12/06/05 Page number 9-5-7