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060-4314-000 • Rev. C - May 2004
MK VI & MK VIII EGPWS Pilot Guide
23
Smart
500 Foot
Callout
Altitude
Callouts
500 Above
Field
Following is a list of each of the possible altitude callouts:
CALLOUT
Occurs at (feet AGL)
"MINIMUMS-MINIMUMS" .............................................................DH
a
“ONE THOUSAND” ...................................................................... 1000
"FIVE HUNDRED" ......................................................................... 500
"TWO HUNDRED" ......................................................................... 200
“ONE HUNDRED” .......................................................................... 100
“FIFTY” ........................................................................................... 50
“FORTY” ......................................................................................... 40
“THIRTY” ........................................................................................ 30
“TWENTY” ....................................................................................... 20
“TEN” ............................................................................................. 10
a
May be MDA or DH for some aircraft types.
Each selected callout is only enunciated once per approach.
Refer to an appropriate Airplane Flight Manual or EGPWS Airplane
Flight Manual Supplement for callout identification in a specific
application or contact Honeywell for additional information.
To meet the AC’s for installation of EGPWS onto any aircraft there
must be a form of callout for 500 ft. This can be acheived via one
of three options in the EGPWS, as a “Hard 500”, “Smart 500”, or
“500 Above Field” callout. These are included as options in the
Callout Menu items. There are also menus without 500 foot call-
outs, these are included for aircraft that already have the means
to announce 500 ft. The “Hard 500” foot callout will annunciate
“FIVE HUNDRED” once during each approach.
The “Smart 500” foot callout, when selected, will assist pilots dur-
ing a non-precision approach by enunciating “FIVE HUNDRED”
feet in addition to any other altitude callout discussed above. The
EGPWS determines a non-precision approach when Glideslope
is greater than 2 dots deviation (valid or not) or a back-course
approach is detected.
The “500 Above Field “ callout will be annunciated once during
each approach when the aircraft flies below 500 ft above the land-
ing field. It compares the GPS-based geometric altitude with the
closest runway. The callout may be optionally chosen to
annunciate “FIVE HUNDRED” or “FIVE HUNDRED ABOVE”.
M
ODE
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