CREW
AWARENESS
AIRPLANE
OPERATIONS
MANUAL
2-04-30
Page
30
Code
01
REVISION 38
AOM-145/1114
TERRAIN AWARENESS DISPLAY
The EGPWS terrain display is designed to increase flight crew
awareness of the surrounding terrain in varying density dots patterns
of green, yellow and red. These dot patterns represent specific terrain
separation with respect to the airplane. The following table relates the
color that the terrain is displayed with its meaning:
COLOR MEANING
Solid red Warning Terrain
(Approximately 30 sec from impact).
Solid yellow Caution Terrain
(Approximately 60 sec from impact).
High density red dots Terrain that is more than 2000 ft
above airplane altitude.
High density yellow dots Terrain that is between 1000 and
2000 ft above airplane altitude.
Medium density yellow
dots
Terrain that is between 500 ft (250 ft
with gear down) below and 1000 ft
above airplane altitude.
Medium density green
dots
Terrain that is between 500 ft (250 ft
with gear down) to 1000 ft below
airplane altitude.
Light density green dots Terrain that is 1000 to 2000 ft below
airplane altitude.
Black Terrain below 2000 ft.
NOTE: - Terrain is not shown if its elevation is within 400 ft of runway
elevation of the nearest airport.
- To reduce clutter on the display, any terrain more than 2000
ft below the airplane is not displayed.
- Terrain that is not covered in the EGPWS database will be
displayed in magenta.