Honeywell EGPWS MK V Manual

FILE ONLY - Release - 08 Aug 2011 14:50:02 MST - Printed on 01 Mar 2013

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Mark V and Mark VII EGPWS Pilot’s Guide
060-4241-000 Table of Contents
Rev H, August 2011 i
TABLE OF CONTENTS
SECTION 1 INTRODUCTION ................................................................ 1
SECTION 2 SYSTEM DESCRIPTION.................................................... 5
SECTION 3 OPERATIONAL PROCEDURES...................................... 46
SECTION 4 DEFINITIONS.................................................................... 59
SMARTRUNWAY®PILOT GUIDE...................................................... 61
SMARTLANDINGTM PILOT GUIDE.................................................... 99
Request for Information ........................................................................ 117

Mark V and Mark VII EGPWS Pilot’s Guide
Table of Contents 060-4241-000
ii Rev H, August 2011
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Mark V and Mark VII EGPWS Pilot’s Guide
060-4241-000 Introduction
Rev H, August 2011 1
SECTION 1 INTRODUCTION
This Pilot Guide describes the functions and operation of the
MK V and MK VII Enhanced Ground Proximity Warning
System (EGPWS).
The document is divided into four sections:
Section 1 is this introduction and the following brief
description of the EGPWS and its features.
Section 2 provides a functional description of the EGPWS.
This includes descriptions of the various system modes;
Built-In-
Test (BIT) and monitoring functions, and system
features.
Section 3 provides general operating procedures to follow
when the system gives a caution or warning alert.
Section 4 provides definitions of terms used in this manual.
This guide does not supersede FAA approved data, Flight
Manuals, individual Operations Manuals, requirements,
or procedures. Pilots should be thoroughly familiar with
their own company policies, system configuration,
requirements, and procedures with respect to the
operation of the aircraft with the EGPWS.
The information in this document is intended as a general
explanation of the Honeywell EGPWS. It contains a general
description of system performance assuming identified
options are active, and highlights deviations in system
performance resulting when a feature is disabled.
What is the
EGPWS?
The EGPWS is a Terrain Awareness and Alerting system
providi
ng terrain alerting and display functions with
additional features meeting the requirements of TSO C151b
Class A TAWS.
The EGPWS uses aircraft inputs including geographic
position, attitude, altitude, airspeed, and glideslope deviation.
These are used with internal terrain, obstacles, and airport
runway databases to predict a potential conflict between the
aircraft flight path and terrain or an obstacle. A terrain or
obstacle conflict results in the EGPWS providing a visual
and audio caution or warning alert.
Additionally, the EGPWS provides alerts for excessive
glideslope deviation, too low with flaps or gear not in
landing configuration, and optionally provides bank angle
and altitude callouts based on system program pin selection.
Detection of severe windshear conditions is also provided for
selected aircraft types when enabled.

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What is the
EGPWS?
Continued
The EGPWS incorporates several “enhanced” features:
•Terrain Alerting and Display (TAD) provides a graphic
display of the surrounding terrain on the Weather Radar
Indicator, EFIS, or a dedicated display. Based on the
aircraft’s position and the internal database, the terrain
topography (within the display range selected) that is
above or within 2000 feet below the aircraft altitude is
presented on the system display. This feature is an option,
enabled by program pins during installation.
•
“Peaks” is a TAD supplemental feature providing
additional terrain display features for enhanced situational
awareness, independent of the aircraft’s altitude. This
includes digital elevations for the highest and lowest
displayed terrain, additional elevation (color) bands, and a
unique representation of 0 MSL elevation (sea level and
its corresponding shoreline). This feature is an option,
enabled by program pins during installation.
•“Obstacles” is a feature utilizing a database of man-made
objects for obstacle conflict alerting
and display.
Additionally, when TAD is enabled, Obstacles are
graphically displayed similar to terrain. This feature is an
option, enabled by program pins during installation.
•Envelope Modulation is a feature utilizing a database of
airport approach and departure profiles to tailor EGPWS
alerts at certain geographic locations to reduce nuisance
alerts and provide added protection.
•A Terrain Clearance Floor (TCF) feature adds an
additional element of protection by alerting the pilot of
possible premature descent. This is intended for non-
precision approaches and is based on the current aircraft
position relative to the nearest runway. This feature is
enabled with the TAD feature.
•The Runway Field Clearance Floor (RFCF) feature is
circular band similar to the TCF feature except that RFCF
is based on the current aircraft position and height above
the destination runway based on Geometric Altitude (see
n
ext page) and only extends 5 NM past the end of the
runway.
This provides improved protection at locations
where the destination runway is significantly higher than
the surrounding terrain. (In -210-210 and later versions).
•An Aural Declutter feature reduces the repetition of
warning messages. This feature is optional, and may be
disabled by system program pins during installation.

Mark V and Mark VII EGPWS Pilot’s Guide
060-4241-000 Introduction
Rev H, August 2011 3
What is the
EGPWS?
Continued
•Geometric Altitude, based on GPS altitude, is a
computed pseudo-barometric altitude designed to reduce
or eliminate altitude errors resulting from temperature
extremes, nonstandard pressure altitude conditions, and
altimeter miss-
sets. This ensures an optimal EGPWS
alerting and display capability.
•The Runway Awareness & Advisory System (RAAS)
option provides alerts and advisories that increase crew
situational awareness during operations on and around
airports. This feature is an option, enabled by PCMCIA
card, available in -218-218 or later versions.
•The SMARTRUNWAY®
option provides alerts and
advisories that increase crew situational awareness during
operations on and around airports; combining the RAAS
functions with added improvements for Taxiway Landing,
Taxiway Takeoff, Short Runway Cautions, Visual
Messaging, and Takeoff Flap Monitor (incorrect takeoff
flap configuration). These features are optional, enabled
by PCMCIA card, available in -230-230 or later versions.
•The SMARTLANDINGTM option provides visual and aural
annunciations that supplement flight crew awareness of
un-stabilized approaches, altimeter setting problems,
landing long and select RAAS advisories. These features
are optional, enabled by PCMCIA card, available in -230-
230 or later versions.
Physical
Description
Some of these features have been added to the EGPWS as
the system evolved and are not present in all Enhanced
Ground Proximity Warning Computer (EGPWC) part
numbers. For specific effectivity, refer to an applicable
Airplane Flight Manual (AFM) or EGPWS Airplane Flight
Manual Supplement (AFMS) or contact Honeywell for
assistance.
The EGPWC is packaged in a 2 MCU ARINC 600-6 rack
mounted enclosure weighing less than 8 lbs. No special
vibration isolation mounting or forced air-
cooling is
required.
115 VAC (400 Hz.) or 28 VDC versions of the EGPWC are
available. Units are also available with an internal GPS
receiver for required GPS data when another GPS source is
not available.
For more detailed descriptions and information, contact
Honeywell.

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Introduction 060-4241-000
4 Rev H, August 2011
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Mark V and Mark VII EGPWS Pilot’s Guide
060-4241-000 System Description
Rev H, August 2011 5
SECTION 2
SYSTEM DESCRIPTION
Enhanced Ground Proximity Warning System ............................................... 6
EGPWS Database ................................................................................................ 6
Basic Functions:
Mode 1 - Excessive Descent Rate ........................................................................ 8
Mode 2 - Excessive Closure to Terrain ................................................................ 9
Mode 2A .............................................................................................................. 9
Mode 2B ............................................................................................................ 11
Mode 3 - Altitude Loss After Takeoff ............................................................... 13
Mode 4 - Unsafe Terrain Clearance ................................................................... 14
Mode 4A ............................................................................................................ 14
Mode 4B ............................................................................................................ 15
Mode 4C ............................................................................................................ 16
Mode 5 - Excessive Deviation Below Glideslope .............................................. 18
Mode 6 - Advisory Callouts ............................................................................... 19
Mode 7 - Windshear Alerting............................................................................. 24
Enhanced Functions:
Envelope Modulation ......................................................................................... 26
Terrain Clearance Floor ..................................................................................... 26
Runway Field Clearance Floor .......................................................................... 28
Terrain Look Ahead Alerting ............................................................................ 29
Terrain Alerting and Display ............................................................................. 30
Non-Peaks Display ............................................................................................ 30
Pop-Up and Auto-Range .................................................................................... 33
Peaks Display .................................................................................................... 33
TAD/TCF INOP Annunciator and INHIBIT.......................................................37
Geometric Altitude ............................................................................................ 37
Weather Radar Auto-Tilt ................................................................................... 38
Aural Message Priority ...................................................................................... 38
System Inputs ................................................................................................... 40
System Outputs ................................................................................................ 42
Options ............................................................................................................. 42

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System Description 060-4241-000
6 Rev H, August 2011
Enhanced
Ground
Proximity
Warning
System
The EGPWS incorporates the functions of the basic Ground
Proximity Warning System (GPWS). This includes the
following alerting modes:
Mode 1
Excessive Descent Rate
"Sinkrate"
"Pull Up"
Mode 2
Excessive Terrain Closure
Rate
"Terrain... Terrain"
"Pull Up"
Mode 3
Altitude Loss After Takeoff
"Don't Sink"
"Don't Sink"
Mode 4
Unsafe Terrain Clearance
"Too Low Terrain"
"Too Low Gear"
"Too Low Flaps"
Mode 5
Excessive Deviation
Below Glideslope
"Glideslope"
Mode 6
Advisory Callouts
"Bank Angle"
"Minimums"
Selected Altitude Callouts
Additionally, Windshear alerting (Mode 7) is provided for
specific aircraft types. Mode 7 provides windshear caution
and/or warning alerts when an EGPWS windshear threshold is
exceeded.
EGPWS
Database
The EGPWS adds to these 7 basic functions the ability to
compare the aircraft position to an internal database and
provide additional alerting and display capabilities for
enhanced situational awareness and safety (hence the term
“Enhanced” GPWS).
The EGPWS internal database consists of four sub-sets:
1.
A worldwide terrain database of varying degrees of
resolution.
2. An obstacles database containing cataloged man-made
objects 100 feet or greater in height located within North
America, portions of Europe and portions of the Caribbean
(expanding as data is obtained).
3.
A worldwide airport database containing information on
runways 3500 feet or longer in length. For a specific list of
the airports included, refer to Honeywell document 060-
4267-000 or access
on the Internet at website
www.egpws.com.
4. An Envelope Modulation database containing information
on airport approach and departure profiles to support the
Envelope Modulation feature.

Mark V and Mark VII EGPWS Pilot’s Guide
060-4241-000 System Description
Rev H, August 2011 7
EGPWS
Database
Continued
Honeywell is constantly striving to improve the EGPWS
database in content, resolution, and accuracy. Notification of a
d
atabase update is accomplished by Service Bulletin.
Database updates are distributed on PCMCIA data cards and
downloaded via a card slot in the front panel of each EGPWC.
Contact Honeywell for additional information.
Because the overwhelming majority of “Controlled Flight Into
Terrain” (CFIT) accidents occur near an airport, and the fact
that aircraft operate in close proximity to terrain near an
airport, and to address prevention of airport runway/taxiway
incursions, the terrain database contains higher resolution
grids for airport areas. Lower resolution grids are used outside
airport areas where aircraft enroute altitude make CFIT
accidents less likely and terrain feature detail is less important
to the flight crew.
With the use of accurate GPS or FMS information, the
EGPWS is provided present position, track, and ground speed.
With this information the EGPWS is able to present a
graphical plan view of the aircraft relative to the terrain and
advise the flight crew of a potential conflict with the terrain or
obstacle. Conflicts are recognized and alerts provided when
terrain violates specific computed envelope boundaries on the
projected flight path of the aircraft. Alerts are provided in the
form of visual light annunciation of a caution or warning,
audio annunciation based on the type of conflict, and color
enhanced visual display of the terrain or obstacle relative to
the forward look of th
e aircraft. The terrain display is
provided on the Weather Radar Indicator, EFIS display, or a
dedicated EGPWS display and may or may not be displayed
automatically.
Also available with high integrity GPS data is alerting
advisory information to help preve
nt runway/taxiway
incursions in the form of audio advisory alerts.
The following sections provide functional descriptions of the
EGPWS basic and enhanced functions and features, and
system input and output requirements.
The operator should have a program of continuous
maintenance that checks the system operation
periodically, updates the software to the latest available,
and ensures a policy of updating the runway, terrain and
obstacle databases.

Mark V and Mark VII EGPWS Pilot’s Guide
System Description 060-4241-000
8 Rev H, August 2011
BASIC FUNCTIONS:
MODE 1
Excessive
Descent
Rate
Mode 1 provides alerts for excessive descent rates with
respect to altitude AGL and is active for all phases of flight.
This mode has inner and outer alert boundaries as illustrated
in the diagram and graph below.
Penetration of the outer boundary activates the EGPWS
caution lights and “SINKRATE, SINKRATE” alert
annunciation. Additional “SINKRATE, SINKRATE”
messages will occur for each 20% degradation in altitude.
During the time that the Sinkrate aural is inhibited and the
alert lamp is ON, the Mode 5 aural “Glideslope” is allowed to
annunciate for excessive glideslope deviation below the beam.
Penetration of the inner boundary activates the EGPWS
warning lights and changes the audio message to “PULL UP”
which repeats continuously until the inner warning boundary
is exited.
Note:
“Pull Up” may be preceded by “Whoop, Whoop” in
some configurations based on the audio menu option selected.

Mark V and Mark VII EGPWS Pilot’s Guide
060-4241-000 System Description
Rev H, August 2011 9
MODE 1
Continued
Glideslope
Deviation
Bias
If a valid ILS Glideslope front course is received and the
aircraft is above the glideslope centerline, the outer (sinkrate)
boundary is adjusted to desensitize the sinkrate alerting. This
is to prevent unwanted alerts when the aircraft is safely
capturing the glideslope (or repositioning to the centerline)
from above the beam.
If the Aural Declutter feature is disabled, the Sinkrate alert
boundary remains fixed and the aural message “SINKRATE”
repeats continuously until the outer boundary is exited.
Envelope
Modulation
Through Envelope Modulation, both boundaries can be biased
to the right at certain airports to minimize nuisance alerts or
warnings.
Steep
Approach
Bias
The EGPWS offers a Steep Approach option for given aircraft
types that desensitizes the alert boundaries to permit steeper
than normal approaches without unwanted alerts. If Steep
Approach is selected (active) then the cockpit self-test is
inhibited if the aircraft is on the ground.
For Airbus A318/319/320/321 with version -226-226/-003 or
later, when Steep Approach is active
Mode 1 is disabled
below 130 ft and no other Mode 1 bias functions are allowed
to operate (Envelope Modulation or above the beam
Glideslope bias).
MODE 2
Excessive
Closure to
Terrain
Mode 2 provides alerts to help protect the aircraft from
impacting the ground when rapidly rising terrain with respect
to the aircraft is detected. Mode 2 is based on Radio Altitude
and on how rapidly Radio Altitude is decreasing (closure
rate). Mode 2 exists in two forms, 2A and 2B.

Mark V and Mark VII EGPWS Pilot’s Guide
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10 Rev H, August 2011
MODE 2A
Mode 2A is active during climbout, cruise, and initial
approach (flaps not
in the landing configuration and the
aircraft not on glideslope centerline). If the aircraft penetrates
the Mode 2A caution envelope, the aural message
“TERRAIN, TERRAIN” is generated and cockpit EGPWS
caution lights will illuminate. If the aircraft conti
nues to
penetrate the envelope, the EGPWS warning lights will
illuminate and the aural warning message “PULL UP” is
repeated continuously until the warning envelope is exited.
Note:
“Pull Up” may be preceded by “Whoop, Whoop” in
some configurations based on the audio menu option selected.
Upon exiting the warning envelope, if terrain clearance
continues to decrease, the aural message “TERRAIN” will be
given until the terrain clearance stops decreasing. In addition,
the visual alert will remain on until the aircraft has gained 300
feet of barometric altitude, 45 seconds has elapsed, or landing
flaps or the flap override switch is activated.

Mark V and Mark VII EGPWS Pilot’s Guide
060-4241-000 System Description
Rev H, August 2011 11
MODE 2A
Continued
The graph below shows how the upper boundary of the Mode
2 alert envelope varies as a function of the aircraft speed. As
airspeed increases from 220 knots to 310 knots, the boundary
expands to provide increased alert times at higher airspeeds.
With version -210-210 and later models, the Mode 2A upper
limit is reduced to 1250 feet (950 feet with version -218-218
and later) for all airspeeds when the Terrain Alerting and
Display (TAD) function is enabled and available. This is due
to the enhanced alerting capability provided with TAD,
resulting from high integrity GPS Altitude and Geometric
Altitude data. The Mode 2A envelope is lowered in order to
reduce the potential for nuisance alerts during an approach.
This modification allows EGPWS operation to be compatible
with RADAR vectoring minimum terrain clearances.

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System Description 060-4241-000
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MODE 2B
Mode 2B provides a desensitized alerting envelope to permit
normal landing approach maneuvers close to terrain without
unwanted alerts. Mode 2B is automatically selected with flaps
in the landing configuration (landing flaps or flap over-ride
selected) or when making an ILS approach with Glideslope
and Localizer deviation less than 2 dots. It is also active during
the first 60 seconds after takeoff.
With version -210-210 and later models, Mode 2B is selected
when the aircraft is within 5 NM (10 NM with version -218-
218 and later
) and 3500 feet of the destination airport
(independent of configuration) and the Terrain Alerting and
Display (TAD) function is enabled and available. This is due
to the enhanced alerting capability provided with TAD,
resulting from high integrity GPS Altitude and Geometric
Altitude data. The Mode 2B envelope is selected in order to
reduce the potential for nuisance alerts during an approach.
The graph above shows the Mode 2B envelope.

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060-4241-000 System Description
Rev H, August 2011 13
MODE 2B
Continued
During an approach, if the aircraft penetrates the Mode 2B
envelope with either the gear or flaps not in the landing
configuration, the aural message “TERRAIN, TERRAIN” is
generated and the EGPWS caution lights illuminate. If the
aircraft continues to penetrate the envelope, the EGPWS
warning lights illuminate and the aural message “PULL UP”
is repeated continuously until the warning envelope is exited.
If the aircraft penetrates the Mode 2B envelope with both gear
and flaps in the landing configuration, the aural “PULL UP”
messages are suppressed and the aural message “TERRAIN”
is repeated until the envelope is exited.
MODE 3
Altitude
Loss After
TakeOff
Mode 3 provides alerts for significant altitude loss after
takeoff or low altitude go-around (less than 245 feet AGL or
150 f
eet, depending on aircraft type) with gear or flaps not in
the landing configuration. The amount of altitude loss that is
permitted before an alert is given is a function of the height of
the aircraft above the terrain as shown below. This protection
is available until the EGPWS determines that the aircraft has
gained sufficient altitude or that it is no longer in the takeoff
phase of flight. Significant altitude loss after takeoff or during
a low altitude go-around activates the EGPWS caution lights
and the aural message “DON’T SINK, DON’T SINK”.

Mark V and Mark VII EGPWS Pilot’s Guide
System Description 060-4241-000
14 Rev H, August 2011
MODE 3
Continued
The aural message is enunciated twice for each 20%
degradation in altitude. Upon establishing a positive rate of
climb, the EGPWS caution lights extinguish and the aural
alert will cease.
If the Aural Declutter feature is disabled, the warning is
enunciated continuously until positive climb is established.
MODE 4
Unsafe
Terrain
Clearance
Mode 4 provides alerts for insufficient terrain clearance with
respect to phase of flight, configuration, and speed. Mode 4
exists in three forms, 4A, 4B, and 4C.
•Mode 4A is active during cruise and approach with the gear
and flaps not in the landing configuration.
•Mode 4B is active during cruise and approach with the gear
in the landing configuration and flaps not in the landing
configuration.
•Mode 4C is active during the takeoff phase of flight with
either the gear or flaps not in the landing configuration.
Mode 4 alerts activate the EGPWS caution lights and aural
messages.
To reduce nuisance alerts caused by over-
flying another
aircraft, the upper limit of the Mode 4A/B alerting curve can
be reduced (from 1000) to 800 feet. This occurs if the airplane
is above 250 knots with gear and flaps not in landing
configuration and a sudden change in Radio
Altitude is
detected. This is intended to eliminate nuisance alerts while
flying a holding pattern and an aircraft over-flight occurs
(with 1000 foot separation).
With version -210-
210 and later models, Mode 4 airspeed
expansion is disabled (upper limit held at lowest airspeed
limit) when the Terrain Alerting and Display (TAD) function
is enabled and available. This is due to the enhanced alerting
capability provided with TAD, resulting from high integrity
GPS Altitude and Geometric Altitude data. This change to the
Mode 4 envelopes reduces the potential for nuisance alerts
when the aircraft is not in the landing configuration.
MODE 4A
Mode 4A is active during cruise and approach with gear and
flaps up. This provides alerting during cruise for inadvertent
flight into terrain where terrain is not rising significantly, or
the aircraft is not descending excessively. It also provides
alerting for protection against an unintentional gear-up
landing.