Page 2 - EGPWS LINE MAINTENANCE MANUAL; This document is an unpublished work.
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 2 of 68 This document is an unpublished work. Copyright 2005, 2010 Honeywell International, Inc. All rights reserved. This document and all information and expression contained herein are the proper...
Page 3 - REVISIONS; (this sentence does not apply to internal
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 3 of 68 REVISIONS SHT REV DESCRIPTION DATE APPROVED All Initial release. Reason 01 Severity 10 23 FEB 00 23 FEB 00 R. Halbert G. Gilliland All A Direct update: Incorporate –008 changes Reason 01 Sev...
Page 5 - TABLE OF CONTENTS
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 5 of 68 TABLE OF CONTENTS 1 INTRODUCTION..................................................................................................................................................... 8 1.1 S ...
Page 6 - MK
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 6 of 68 3.8.3 +28V Landing Gear Discrete ..................................................................................................................... 38 3.8.4 GND Landing Flap Discrete or F...
Page 8 - INTRODUCTION; MK V EGPWC PART NUMBERS
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 8 of 68 1 INTRODUCTION 1.1 SCOPE This document provides information about the Enhanced Ground Proximity Warning System (EGPWS) with respect to Line Maintenance Operations. This includes Description ...
Page 9 - Figure 1-1 - Enhanced Ground Proximity Warning Computers; DOCUMENTS
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 9 of 68 MK V & MK VII EGPWC (left) and MK VI, MK VIII, MK XXII EGPWC (right) Figure 1-1 - Enhanced Ground Proximity Warning Computers 1.3 REFERENCE DOCUMENTS The following documents are identifi...
Page 10 - DESCRIPTION AND OPERATION; The EGPWS is comprised of the following:
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 10 of 68 2 DESCRIPTION AND OPERATION 2.1 GENERAL SYSTEM DESCRIPTION The purpose for the Enhanced Ground Proximity Warning System (EGPWS) is to help prevent accidents caused by Controlled Flight Into...
Page 12 - GLIDESLOPE; CALLOUT DESCRIPTION
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 12 of 68 provides “TOO LOW TERRAIN” or “TOO LOW FLAPS” depending on airspeed. Mode 4C provides “TOO LOW TERRAIN”. EGPWS alert lights are illuminated during these alerts. 2.2.5 MODE 5 - DESCENT BELOW...
Page 14 - TERRAIN CLEARANCE FLOOR AND RUNWAY FIELD CLEARANCE FLOOR
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 14 of 68 2.2.6.1 EXCESSIVE BANK ANGLE CALLOUT The Bank Angle Callout feature provides callout enunciation for excessive bank angles based on altitude and bank angle limits defined by aircraft type. ...
Page 17 - See Appendix C for RAAS Maintenance Messages.
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 17 of 68 below the antenna beam scan resulting in a blank display. Alternately, under-scan, where the antennas scan is hitting the ground below the weather cells, results in ground clutter display. ...
Page 18 - See Appendix E for Altimeter Monitor Maintenance Messages.; 8 TAKEOFF FLAP CONFIGURATION MONITOR (OPTION FOR MK V AND MK VII; See Appendix F for Takeoff
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 18 of 68 installation does require that the EGPWS has a source of GPS data, software -230-230 or later, Terrain Database version 454 or later, and the Reloadable Customer Definitions (RCD) is loaded...
Page 19 - Actual legends may vary.; Mode 5 only; Push to Cancel; All warning alerts; Push to Test
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 19 of 68 2.2.21 LAMP FORMAT The EGPWS contains two different caution/warning lamp illumination formats as described below. Lamp Format 1 provides EGPWS warning (red) and caution (amber) alert lamp d...
Page 20 - SYSTEM MAINTENANCE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 20 of 68 2.3 SYSTEM MAINTENANCE 2.3.1 MAINTENANCE PHILOSOPHY The EGPWS is an “on-condition” only maintenance system. No scheduled maintenance is required. This is accomplished by both continuous Bui...
Page 21 - a yellow “External Fault” LED
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 21 of 68 These tests primarily consist of more thorough hardware checks that would disrupt normal operation if continuously run. 2.3.4 EGPWC FRONT PANEL To aid in troubleshooting the EGPWS, the fron...
Page 22 - FUNCTIONS
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 22 of 68 2.3.5 SELF-TEST FUNCTIONS The EGPWC supports a manually operated Self-Test sequence for indicating the operational status of the system. The Self-Test aurally enunciates the EGPWS status an...
Page 23 - GUIDE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 23 of 68 3 FAULT ISOLATION (TROUBLESHOOTING) 3.1 GENERAL The troubleshooting methods provided in this section identify system and sensor or subsystem faults to the lowest level possible. Additional ...
Page 24 - Short Cancel; PREAMBLE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 24 of 68 3.3 LEVEL 1 SELF-TEST - GO/NO GO TEST Level 1 Self-Test provides an overview of the current operational capability of the EGPWS. It is divided into 3 functions - the Preamble, Short Level 1...
Page 26 - short cancel
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 26 of 68 Installations that do not have the windshear function or the function enabled will not enunciate the windshear message and illuminate windshear alert lights. Similarly, installations withou...
Page 27 - Notes; is removed and replaced.
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 27 of 68 3.4.1 CURRENT FAULTS - INTERNAL An internal fault indicates a problem with the EGPWC. The following table lists the internal fault messages and the probable maintenance response. Note: “NO ...
Page 28 - FAULT EXAMPLE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 28 of 68 TABLE 3-3: CURRENT FAULTS - EXTERNAL (EXAMPLES) FAULT EXAMPLE REASON ARINC 429 Bus Fault GPS BUS 1 INACTIVE No expected input labels received for more than 4 seconds ARINC 429 Signal Fault ...
Page 32 - Navigation Status Messages
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 32 of 68 NOTE : Before attempting to correct an external fault, verify that the EGPWS installation configuration matches the aircraft configuration. If the installation configuration and aircraft co...
Page 33 - THE FOLLOWING INFORMATION IS GIVEN IN THE LEVEL 3 SELF-TEST:; Note that only those features that are enabled or disabled
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 33 of 68 3.5 LEVEL 3 SELF-TEST - SYSTEM CONFIGURATION A Level 3 Self-Test enunciates EGPWC configuration information. Level 3 is accessed while the aircraft is on the ground by pressing the EGPWS te...
Page 36 - THE FOLLOWING INFORMATION IS GIVEN IN THE LEVEL 4 SELF-TEST:; Enunciate any internal faults stored for leg X
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 36 of 68 3.6 LEVEL 4 SELF-TEST - FAULT HISTORY Level 4 Self-Test provides enunciation of the faults recorded over the last 10 flight legs. Level 4 Self-Test is initiated by pressing the cockpit Self...
Page 37 - THE FOLLOWING INFORMATION IS GIVEN IN THE LEVEL 5 SELF-TEST:; Enunciate any alerts stored for leg X
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 37 of 68 3.7 LEVEL 5 SELF-TEST - ALERT HISTORY Level 5 Self-Test provides enunciation of the alerts (cautions and warnings) recorded over the last 10 flight legs. Level 5 Self-Test is initiated by p...
Page 38 - ARINC 552 / ALT 55 RADIO ALTITUDE VALIDITY FLAG DISCRETES
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 38 of 68 3.8.1 ARINC 552 / ALT 55 RADIO ALTITUDE VALIDITY FLAG DISCRETES Three Radio Altitude validity flags may be used by the EGPWS, one for each of the three possible ARINC 552 or ALT 55 Radio Al...
Page 39 - GND LANDING FLAP DISCRETE OR FLAP OVERRIDE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 39 of 68 3.8.4 GND LANDING FLAP DISCRETE OR FLAP OVERRIDE Type: Supplied by Flap or Flap selector handle switch. This input can be paralleled with, or used exclusively by a Flap Override Switch if a...
Page 40 - DISCRETE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 40 of 68 3.8.6 FLAP POSITION DISCRETES Up to four flap position discretes are typically supplied from the flap selector handle switch. Type: Supplied by Flap selector handle switch. Signal Status: F...
Page 42 - 2 GND GLIDESLOPE INHIBIT DISCRETE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 42 of 68 3.8.12 GND GLIDESLOPE INHIBIT DISCRETE Type: Switch for inhibit of Glideslope mode Signal Status: Glideslope Inhibit or Not Inhibit Fault monitoring: Mode 5 will be disabled and “Glideslope...
Page 46 - 8 BAROMETRIC ALTITUDE RATE VALIDITY DISCRETES
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 46 of 68 3.8.28 BAROMETRIC ALTITUDE RATE VALIDITY DISCRETES Two Barometric Altitude Rate validity discretes may be used by EGPWS, one for each possible barometric rate sensor. Type: Validity from ba...
Page 47 - 3 MAGNETIC HEADING VALIDITY DISCRETE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 47 of 68 3.8.33 MAGNETIC HEADING VALIDITY DISCRETE A Magnetic Heading validity discrete may be used by EGPWS for the Magnetic Heading sensor. Type: Validity from Magnetic Heading sensor. Signal Stat...
Page 48 - 9 CORRECTED BAROMETRIC ALTITUDE VALIDITY DISCRETE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 48 of 68 3.8.37 TACTICAL SELECT DISCRETE Tactical Select discrete may be used by EGPWS for an indication that the Tactical Select switch has been pressed. Type: momentary make/break switch Signal St...
Page 51 - MAINTENANCE; NOTE; will be identified in the associated database SIL.
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 51 of 68 4 MAINTENANCE PRACTICES 4.1 GENERAL Normal maintenance activities performed on the EGPWS should follow standard industry maintenance practices. System maintenance practices may include; upd...
Page 52 - FLIGHT HISTORY DOWNLOADING; For the MK V or MK VII
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 52 of 68 The database may be loaded either while the EGPWC is on the aircraft or on a bench provided the appropriate power is applied. Each Honeywell database Service Information Letter includes ref...
Page 53 - This operation should require no more than 10 minutes.; , depress the PUSH TO EJECT button on the EGPWC front panel.
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 53 of 68 NOTE: This operation should require no more than 10 minutes. NOTE : If the XFER FAIL LED turns ON instead of the XFER COMP LED, then a different Flight History Download PCMCIA Card must be ...
Page 54 - Power EGPWC and PC and start WinVIEWS.
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 54 of 68 4.4 PROGRAMMING THE CONFIGURATION MODULE (MK VI, MK VIII, MK XXII ONLY) Programming the EGPWS Configuration Module is accomplished using WinVIEWS on a PC connected to the EGPWC via the RS-2...
Page 56 - example
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 56 of 68 An example CUW command/data string, its definition, and the corresponding CWR list is provided below. CUW command/data string: CFG > CUW 0/15 2 3 2 0 0 3 95 1 0 0 0 0 0 0 0/ Above Config...
Page 57 - SERVICING
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 57 of 68 5 SERVICING 5.1 GENERAL The EGPWS does not require any servicing. 6 REMOVAL/INSTALLATION 6.1 EGPWC 6.1.1 REMOVAL 1. Remove power to the EGPWC. 2. (MK VI, MK VIII, and MK XXII only) Disconne...
Page 60 - 1 APPENDIX A: WINVIEWS; To obtain a copy of the WinVIEWS software, please visit
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 60 of 68 11 APPENDIX A: WINVIEWS WinVIEWS (Windows Virtual Interface to the Enhanced Warning System) is a software tool developed by Honeywell to monitor or view values within the EGPWC, and perform...
Page 61 - 2 APPENDIX B: TROUBLESHOOTING DO’S AND DO NOT’S; DO remember to look at the front panel LEDs
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 61 of 68 12 APPENDIX B: TROUBLESHOOTING DO’S AND DO NOT’S DO use built-in self test levels to find the exact nature of the fault. DO use our free WinVIEWS program to quickly access Self Test Level 1...
Page 62 - FUNCTION; All volume levels at same volume as; Note
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 62 of 68 13 APPENDIX C: RAAS MAINTENANCE MESSAGES (AURAL & DISPLAYED) TABLE C1-1: RAAS MAINTENANCE MESSAGES MAINT. FUNCTION MESSAGE Except where noted, all maintenance message voices are Male NO...
Page 64 - 4 APPENDIX D: STABILIZED APPROACH MONITOR MAINTENANCE MESSAGES
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 64 of 68 14 APPENDIX D: STABILIZED APPROACH MONITOR MAINTENANCE MESSAGES TABLE D-1: STABILIZED APPROACH MONITOR MAINTENANCE MESSAGES MAINT. FUNCTION MESSAGE Except where noted, all maintenance messa...
Page 65 - 5 APPENDIX E: ALTIMETER MONITOR MAINTENANCE MESSAGES
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 65 of 68 15 APPENDIX E: ALTIMETER MONITOR MAINTENANCE MESSAGES TABLE E-1: ALTIMETER MONITOR MAINTENANCE MESSAGES MAINT. FUNCTION MESSAGE Except where noted, all maintenance message voices are Male N...
Page 66 - 6 APPENDIX F: TAKEOFF FLAP CONFIGURATION MONITOR MAINTENANCE
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 66 of 68 16 APPENDIX F: TAKEOFF FLAP CONFIGURATION MONITOR MAINTENANCE MESSAGES TABLE F-1: TAKEOFF FLAP CONFIGURATION MONITOR MAINTENANCE MESSAGES MAINT. FUNCTION MESSAGE Except where noted, all mai...
Page 67 - 7 APPENDIX G: LONG LANDING MONITOR MAINTENANCE MESSAGES
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 67 of 68 17 APPENDIX G: LONG LANDING MONITOR MAINTENANCE MESSAGES TABLE G-1: LONG LANDING MONITOR MAINTENANCE MESSAGES MAINT. FUNCTION MESSAGE Except where noted, all maintenance message voices are ...
Page 68 - 8 APPENDIX H: LOW AIRSPEED MONITOR MAINTENANCE MESSAGES
EGPWS LINE MAINTENANCE MANUAL CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 68 of 68 18 APPENDIX H: LOW AIRSPEED MONITOR MAINTENANCE MESSAGES TABLE H-1: LOW AIRSPEED MONITOR MAINTENANCE MESSAGES MAINT. FUNCTION MESSAGE Except where noted, all maintenance message voices are ...
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