Navaids; Basemap; Gdc 74A Air Data Computer - Garmin G1000 Pilot's Manual

WARNINGS & CAUTIONS
WARNING: Navigation and terrain separation must NOT be predicated upon the use of the terrain function.
The G1000 Terrain Proximity feature is NOT intended to be used as a primary reference for terrain avoidance
and does not relieve the pilot from the responsibility of being aware of surroundings during flight. The Terrain
Proximity feature is only to be used as an aid for terrain avoidance and is not certified for use in applications
requiring a certified terrain awareness system. Terrain data is obtained from third party sources. Garmin is
not able to independently verify the accuracy of the terrain data.
WARNING: The displayed minimum safe altitudes (MSAs) are only advisory in nature and should not be relied
upon as the sole source of obstacle and terrain avoidance information. Always refer to current aeronautical
charts for appropriate minimum clearance altitudes.
WARNING: The Garmin G1000, as installed in Cessna Nav III aircraft, has a very high degree of functional integ-
rity. However, the pilot must recognize that providing monitoring and/or self-test capability for all conceivable
system failures is not practical. Although unlikely, it may be possible for erroneous operation to occur without
a fault indication shown by the G1000. It is thus the responsibility of the pilot to detect such an occurrence
by means of cross-checking with all redundant or correlated information available in the cockpit.
WARNING: For safety reasons, G1000 operational procedures must be learned on the ground.
WARNING: The altitude calculated by G1000 GPS receivers is geometric height above Mean Sea Level and could
vary significantly from the altitude displayed by pressure altimeters, such as the GDC 74A Air Data Computer,
or other altimeters in aircraft. GPS altitude should never be used for vertical navigation. Always use pressure
altitude displayed by the G1000 PFD or other pressure altimeters in aircraft.
WARNING: The Jeppesen database used in the G1000 system must be updated regularly in order to ensure
that its information remains current. Updates are released every 28 days. A database information packet is
included in the G1000 package. Pilots using an outdated database do so entirely at their own risk.
WARNING: The basemap (land and water data) must not be used for navigation, but rather only for non-navi-
gational situational awareness. Any basemap indication should be compared with other navigation sources.
CAUTION: The United States government operates the Global Positioning System and is solely responsible
for its accuracy and maintenance. The GPS system is subject to changes which could affect the accuracy and
performance of all GPS equipment. Portions of the Garmin G1000 utilize GPS as a precision electronic NAVi-
gation AID (NAVAID). Therefore, as with all NAVAIDs, information presented by the G1000 can be misused or
misinterpreted and, therefore, become unsafe.
xvi Garmin G1000 Pilot's Guide for Cessna Nav III 190-00362-03 Rev. C