Piper ARCHER III Pilot Operating Handbook page 209

PA-28-181, A RCHER III
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Multi-Function Display (continued)
Terrain Proxin1ity
G LOO0 Terrain Proximity is a terrain awareness system Lhat increases situational
awareness and aids in preventing controlled flight into terrain (CFIT). II is similar
to the Terrain Awareness and Warning System (TA WS) but does not comply
with TSO-C151b certification standards. Terrain Proximity does not provide
warning annunciations or voice alerts but it does provide color indications on
map displays when terrain and obstacles are within a certain altitude threshold
from the aircraft. Although the terrain and obstacle color map displays are the
same, TA WS uses a more extensive database and more sophisticated algorithms
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to assess aircraft distance from terrain and obstacles. The terrain and obstacles
database may not contain all obstructions, so the information provided should
he used as an aid to situational awareness and should never be used to navigate
or maneuver around terrain .
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ISSUED: December 22, 2017
If the GI 000 system is configured to use the
optional Terrain Awareness and Warning System
(TA WS), Terrain Proximity will not be available
for use.
DESCRIPTION & OPERATION
NOTE
SECTION7
REPORT: VB-2749
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