Honeywell
MK XXII EGPWS Installation Manual
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225 REV: C
SHEET
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2.3.10.1 Description
EGPWS warning GPWS P/TEST
This assembly is illuminated with Red background and black or white letters. For dark cockpits black
background and Red letters. The EGPWS warning annunciator is not normally dimmable. For Lamp
Format 1 (I/O Discrete Type 128) the lamp is activated during any Mode 1 through Mode 4, and Terrain
/Obstacle Awareness alerts and warnings. For Lamp Format 2 (I/O Discrete Type 129) the lamp is
activated during Mode 1 and Mode 2 Pull Up, and Terrain /Obstacle Awareness warnings. This assembly
also includes a momentary switch that will activate EGPWS Self Test.
EGPWS caution GPWS G/S CANCLD
This assembly is illuminated with Amber background and black or white letters, for dark cockpits black
background and Amber letters. The EGPWS alert annunciator is not normally dimmable. For Lamp Format
1 (I/O Discrete Type 128) the lamp is activated during any Mode 5 alert. For Lamp Format 2 (I/O Discrete
Type 129) the lamp is activated during any Mode 1 through Mode 4, and Terrain /Obstacle Awareness
alerts. This assembly also includes a momentary switch that will activate glideslope cancel.
LOW ALTITUDE LOW ALT ON
This assembly is illuminated with black background and white, green, or blue letters. This assembly also
includes a momentary switch that will activate / de-activate (cancel) EGPWS low altitude mode.
TERRAIN INHIBIT TERR INHIB ON
This assembly is illuminated with black background and white, blue, or green letters. This assembly also
includes a alternate action switch that will activate ./ de-activate (cancel) Terrain inhibit mode. (Optional
see section 2.3.10.3)
AUDIO INHIBIT AUDIO INHIB ON
This assembly is illuminated with black background and white, blue, or green letters This assembly also
includes a momentary switch that will activate ./ de-activate (cancel) Audio inhibit mode. (Optional see
section 2.3.10.3)
GPWS system validity GPWS INOP TERR INOP
This assembly is illuminated with black background and amber letters activated during any detected partial
or total failure of the GPWS modes 1-5. And TA&D
TERRAIN select TERR DISPLAY ON
This assembly is illuminated with white background and activated after the flight crew has initiated the
manual selection of the EGPWS terrain display for the associated cockpit display. This assembly also
includes a momentary switch that will activate EGPWS Terrain display feature.