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MK XXII EGPWS Installation Manual
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225 REV: C
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1.9.4.2 GPWS Caution (amber) G/S CANCLD switch/annunciator assembly.
The ‘GPWS caution annunciator provides visual indication of an EGPWS alert. The EGPWS
caution (amber) annunciator also has a switch that is used to manually inhibit EGPWS Mode 5
glideslope alerts. The bottom half of the annunciator provides visual indication that the mode 5
glideslope alerts have been canceled.
1.9.4.3 LOW ALT / ON switch/annu nciator assembly
The LOW ALT / ON switch/annunciator provides for manual selection of low altitude mode and
visual indication that the Mk XXII EGPWS is in low altitude mode.
1.9.4.4 TERR INHIB / ON switch/an nunciator assembly
The ‘TERR INHIBIT’ switch/annunciator provides for manual selection of terrain inhibit mode and
visual indication that the EGPWS Terrain functions have been inhibited.
1.9.4.5 AUDIO INHIBIT / ON switch /annunciator assembly
The ‘AUDIO INHIBIT’ switch/annunciator provides for manual selection of audio inhibit mode and
visual indication that the EGPWS mode 6 functions have been inhibited.
1.9.4.6 GPWS INOP / TERR INOP a nnunciator assemblies
The ‘GPWS INOP’ annunciator provides visual indication that the EGPWS GPWS modes have a
disabled function.
The ‘TERR INOP’ annunciator provides visual indication that the EGPWS Terrain modes have a
disabled function.
1.9.4.7 TERR DISPLAY / ON switch /annunciator assemblies
The ‘TERR DISPLAY’ switch/annunciator provides for manual selection of the terrain display and
visual indication that the EGPWS Terrain Display has been selected for the associated display.
1.10 Cockpit Speaker (Opti onal)
The MK XXII EGPWS can interface to an 8 ohm audio speaker for cockpit annunciation of aural
alerts.
Vendor Name Vendor P/N Description QTY UM Honeywell P/N
Quam 30A05Z8 Audio Speaker 1 EA
Utah SP-3A Audio Speaker 1 EA
CTS 4AC3 Audio Speaker 1 EA 300-0218-002