Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-150 REV: SHEET 110
(Lamp Format Type 2 definition)
GPWS Warning discrete (J1-78) will activate during any Mode 1 or 2 Pull Up warning, Terrain Awareness
warning, or Obstacle Awareness warning. This feature activates a ‘GPWS’ lamp located in the cockpit within
sight of each pilot.
3.15.2.6 GPWS Alert Discrete
(Lamp Format Type 1 definition)
GPWS Alert discrete (J1-77) will activate during Mode 5 Glideslope cautions only. This feature activates a
‘BELOW GS’ amber lamp located in the cockpit within sight of each pilot.
(Lamp Format Type 2 definition)
GPWS Alert discrete (J1-77) will activate during any Mode 1 Sinkrate, Mode 3 Don’t Sink, Mode 4 Too Low
Gear, Too Low Flaps, Too Low Terrain, Mode 5 Glideslope, Terrain Awareness caution, or Obstacle Awareness
caution. This feature activates a ‘GPWS’ amber lamp located in the cockpit within sight of each pilot.
3.15.2.7 Glideslope Ca ncel’d Discrete
-Optional- Glideslope Cancel’d discrete (J1-76) will activate when the Glideslope Cancel discrete (momentary)
has been pressed any time below 2000 feet Radio Altitude if the ILS is tuned. This feature activates a ‘G/S
CANCLD” amber lamp located in the cockpit within sight of the pilots.
3.15.2.8 Flap Override Discrete
-Optional- Flap Override discrete (J1-73) will activate after either pilot has initiated the manual selection of the
Flap Override (momentary) discrete. This feature activates a ‘GPWS FLAP OVRD” blue lamp located in the
cockpit within sight of the pilots. The lamp serves to remind the flight crew that this function is active.
3.15.2.9 Steep Approac h Discrete
Steep Approach discrete (J1-52) will activate when the Steep Approach discrete (momentary action) has been
pressed. This feature activates a “STP APR” amber lamp located within sight of the pilots.
3.15.2.10 Audio On Dis crete (TCAS/TAS Inhibit)
-Optional- Audio On discrete (J1-69) will activate during any EGPWS voice annunciation. This output is used to
inhibit other systems (such as TCAS or TAS) from talking during EGPWS annunciation. This feature does not
have a lamp associated with it.