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KTA 970/KMH 980 Pilot's Guide
Note 5: Voice message may be disabled depending upon configuration.
Note 6: Certain GA-EGPWS units only, messages may be disabled
depending upon configuration.
GA-EGPWS COCKPIT LAMPS & SWITCHES
A representative sample of a possible annunciator and switch installation
is pictured below. Other configurations are at the discretion of the
installer and operational requirements of the aircraft.
GA-EGPWS SYSTEM LIMITATIONS
* The GA-EGPWS is a Situational Awareness tool, and an alerting and
warning device. It is not to be used for navigation of the aircraft.
* The GA-EGPWS must have an operating source of GPS information,
with enough satellites in view to provide GPS data within the accuracy
requirements of the system.
* Without the optional Outside Air Temperature (OAT) input for correc-
tions, "Geometric Altitude" may have errors during rapid climbs or
descents in non-ISA conditions. This may affect alerting/warning times
and proper altitude reference on the Terrain Display.
* The Terrain, Obstacle and Runway database information is not all-
inclusive.
* The GA-EGPWS "Look-Ahead" alerting and warning, and Runway
Field Clearance Floor (RFCF) functions are gradually "de-sensitized"
as an aircraft nears a known runway. Aircraft operating in close proxim-
ity to known runways may experience very short or no advance warn-
ings with respect to terrain or obstacles in this area. (See sections on
GA-EPWS "Look-Ahead" and RFCF).
Rev 2
EGPWS
WARN
CAUT
NOT
AVAIL
Typical Annunciator
61
Additional EGPWS Information
TEST
ALERT INHIBIT
006-18273-0000
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