SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
D--3
Enhanced Ground Proximity Warning System (Optional)
LIMITED SYSTEM OPERATION
The limited system is controlled with one cockpit--mounted toggle
switch that controls the MFD.
Push the EGPWS (terrain) switch to select terrain data for display. The
display automatically switches to the map mode. Terrain cannot be
displayed in the plan mode. To remove the terrain data from the MFD,
push the MAP/PLAN, WX, NORM, or EMER buttons on the MFD
controller.
The EGPWS display selection, sequence, and range control for the
MFD in limited system operation is the same as for the MFD in full
system operation.
EGPWS TERRAIN ANNUNCIATORS
When EGPWS is displayed and valid, TERR is displayed in the weather
radar tilt angle field. If EGPWS data is not available, or if the range from
the weather radar controller is invalid, TERR is displayed.
The terrain symbols display areas of terrain in blends of the colors
black, green, yellow, and red, depending upon the aircraft altitude
(AGL) relative to the surrounding terrain. (Refer to Table D--1.) Terrain
that is more than 2000 feet below the aircraft is not displayed.
Terrain Elevation in Feet
AGL
Color
2000 or more above the aircraft red/black mixture
1000 -- 2000 above the aircraft yellow/black mixture
0 -- 1000 above the aircraft light yellow/black mixture
1000 -- 2000 below the aircraft dim green/black mixture
1000 -- 2000 below the aircraft dim green/black mixture
2000 or more below the aircraft black
NOTE: Caution terrain (60--second warning) is displayed as solid yellow. Warning
terrain (30--second warning) is displayed as solid red.
EGPWS Terrain Display Color Definitions
Table D- -1