Garmin Cessna Caravan G1000 User manual

190-00577-03 October 2007 Revision C
G1000 System
Maintenance
Manual
Columbia 350/400

G1000-Columbia 350/400 System Maintenance Manual Page A
190-00577-03 Revision C
© Copyright 2005-2007
Garmin Ltd. Or its subsidiaries
All Rights Reserved
Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted,
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any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.
Garmin International, Inc.
1200 E. 151st Street
Olathe, KS 66062 USA
Telephone: [phone]
www.garmin.com
Garmin (Europe) Ltd.
Liberty House
Bull Copse Road
Hounsdown Business Park
Southampton, SO40 9RB, UK
Telephone: [phone]
RECORD OF REVISIONS
Revision Revision Date Description
1 12/14/05 Initial Release
2 1/16/06 Updated servo torque checks and fuel calibration
procedures.
A 2/13/07 Revised the GDC 74A test procedure.
B 9/13/07 Improved troubleshooting in section 4, updated software
loading for V8.X in section 6 along with updated servo
torque checks.
C 10/19/07 Updated for WAAS configuration; removed statement
“WAAS is currently not an FAA approved or available
configuration” throughout section 6. Also added the
GCU 476 Boot Block Upgrade procedure to section 6.
Throughout document changed statements with the label
IMPORTANT to read NOTE. Added a note to page 5-9
about the system ID changing when master config
module is replaced.

Page B G1000-Columbia 350/400 System Maintenance Manual
Revision C 190-00577-03
DOCUMENT PAGINATION
Section Pagination
Table of Contents iii - viii
Section 1 1-1 thru 1-4
Section 2 2-1 thru 2-16
Section 3 3-1 thru 3-12
Section 4 4-1 thru 4-82
Section 5 5-1 thru 5-12
Section 6 6-1 thru 6-118
Section 7 7-1 thru 7-2
Section 8 8-1 thru 8-2

G1000-Columbia 350/400 System Maintenance Manual Page i
190-00577-03 Revision C
INFORMATION SUBJECT TO EXPORT CONTROL LAWS
This document may contain information which is subject to the Export Administration Regulations
("EAR") issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C) and
which may not be exported, released, or disclosed to foreign nationals inside or outside of the United
States without first obtaining an export license. A violation of the EAR may be subject to a penalty of up
to 10 years imprisonment and a fine of up to $1,000,000 under Section 2410 of the Export Administration
Act of 1979. Include this notice with any reproduced portion of this document.
WARNING
This product, its packaging, and its components contain chemicals known to the State of
California to cause cancer, birth defects, or reproductive harm. This Notice is being
provided in accordance with California's Proposition 65. If you have any questions or
would like additional information, please refer to our web site at
www.garmin.com/prop65.
CAUTION
The GDU 1040 and 1042 use a lens coated with a special anti-reflective coating that is
very sensitive to skin oils, waxes and abrasive cleaners. CLEANERS CONTAINING
AMMONIA WILL HARM THE ANTI-REFLECTIVE COATING. It is very important
to clean the lens using a clean, lint-free cloth and an eyeglass lens cleaner that is specified
as safe for anti-reflective coatings.
CAUTION
All G1000 screen shots used in this document are current at the time of publication.
Screen shots are intended to provide visual reference only. All information depicted in
screen shots, including software file names, versions and part numbers, is subject to
change and may not be up to date.

Page ii G1000-Columbia 350/400 System Maintenance Manual
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This Page Intentionally Left Blank

G1000-Columbia 350/400 System Maintenance Manual Page iii
190-00577-03 Revision C
Table of Contents
1INTRODUCTION..............................................................................................................................1-1
1.1 Content, Scope, and Purpose.......................................................................................................1-1
1.1.1 Applicability..........................................................................................................................1-1
1.2 Organization..................................................................................................................................1-1
1.3 Definitions/Abbreviations...............................................................................................................1-2
1.3.1 Units of Measure .................................................................................................................1-2
1.4 Reference Publications .................................................................................................................1-3
1.5 Distribution ....................................................................................................................................1-4
2SYSTEM DESCRIPTION .................................................................................................................2-1
2.1 Equipment Descriptions ................................................................................................................2-1
2.1.1 GDU 1040 PFD and GDU 1042 MFD .................................................................................2-1
2.1.2 GMA 1347 Audio Panel.......................................................................................................2-1
2.1.3 GIA 63 Integrated Avionics Unit ..........................................................................................2-2
2.1.4 GEA 71 Engine/Airframe Unit..............................................................................................2-2
2.1.5 GTX 33 Mode S Transponder .............................................................................................2-3
2.1.6 GDC 74A Digital Air Computer............................................................................................2-4
2.1.7 OAT Probe...........................................................................................................................2-4
2.1.8 GRS 77 Attitude and Heading Reference System ..............................................................2-4
2.1.9 GMU 44 Magnetometer.......................................................................................................2-5
2.1.10 GSA 81 Servo and GSM 85 Servo Mount...........................................................................2-5
2.1.11 GTA 82 Trim Adapter ..........................................................................................................2-6
2.1.12 GCU 476 Remote Keypad...................................................................................................2-6
2.1.13 GFC 700 AFCS Operational Description.............................................................................2-7
2.2 Electrical Installation......................................................................................................................2-8
2.2.1 Power Distribution ...............................................................................................................2-8
2.2.2 Wiring.................................................................................................................................2-10
2.2.3 Shield Block Installation.....................................................................................................2-10
2.3 G1000 System Communications.................................................................................................2-12
2.3.1 Flight Instrumentation........................................................................................................2-12
2.3.2 Engine Indicator System....................................................................................................2-14
2.3.3 Communications/Navigation Systems...............................................................................2-15
3G1000 CONTROL AND OPERATION .............................................................................................3-1
3.1 User Interface................................................................................................................................3-2
3.1.1 Flight Management System (FMS) Knob ............................................................................3-2
3.1.2 Softkeys...............................................................................................................................3-2
3.1.3 AFCS Controls.....................................................................................................................3-3
3.2 G1000 Normal Mode.....................................................................................................................3-4
3.3 Reversionary Mode.......................................................................................................................3-5
3.4 Configuration Mode Overview.......................................................................................................3-6
3.4.1 Loader Card Interface..........................................................................................................3-6
3.4.2 Configuration Files...............................................................................................................3-7
3.4.3 Configuration File Storage...................................................................................................3-7
3.4.4 SET>ACTV Interface...........................................................................................................3-9
3.4.5 Configuration Prompts.......................................................................................................3-11
3.4.6 Data Transmission Indicators............................................................................................3-11
3.5 Configuration Mode Navigation...................................................................................................3-12
4TROUBLESHOOTING .....................................................................................................................4-1
4.1 G1000 Alerting System .................................................................................................................4-2
4.2 System Annunciations...................................................................................................................4-4
4.2.1 AFCS System Troubleshooting.........................................................................................4-12
4.3 Columbia 350/400 Specific Alerts ...............................................................................................4-14
4.4 GDU 1040/1042 Troubleshooting ...............................................................................................4-19
4.4.1 GDU 1040/1042 Common Problems.................................................................................4-19
4.4.2 Failed Path Messages (GDU Software Version 7.01 and later only)................................4-21
4.4.3 Database and Software Alerts...........................................................................................4-24

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4.4.4 GDU Cooling Alerts ...........................................................................................................4-27
4.4.5 Key Alerts ..........................................................................................................................4-28
4.4.6 Datacard Alerts..................................................................................................................4-28
4.4.7 Miscellaneous Alerts..........................................................................................................4-28
4.5 GMA 1347 ...................................................................................................................................4-34
4.5.2 Common Problems............................................................................................................4-36
4.5.3 GMA Alerts ........................................................................................................................4-37
4.5.4 Backup Path Alerts............................................................................................................4-38
4.6 GIA 63 .........................................................................................................................................4-39
4.6.1 Configuration Pages..........................................................................................................4-39
4.6.2 COM ..................................................................................................................................4-45
4.6.3 GPS...................................................................................................................................4-46
4.6.4 NAV ...................................................................................................................................4-46
4.6.5 G/S.....................................................................................................................................4-47
4.6.6 COM Related Alerts...........................................................................................................4-47
4.6.7 NAV Related Alerts............................................................................................................4-49
4.6.8 G/S Related Alerts.............................................................................................................4-50
4.6.9 GPS Related Alerts ...........................................................................................................4-50
4.6.10 GIA Cooling Alerts.............................................................................................................4-51
4.6.11 Other GIA Alerts ................................................................................................................4-51
4.7 GEA Troubleshooting..................................................................................................................4-53
4.7.1 GEA 71 Configuration Pages ............................................................................................4-53
4.7.2 Common Problems............................................................................................................4-55
4.7.3 GEA 71 Related Alerts ......................................................................................................4-55
4.7.4 Backup Path Alerts............................................................................................................4-56
4.8 GTX Troubleshooting..................................................................................................................4-57
4.8.1 GTX 33 Common Alerts ....................................................................................................4-57
4.8.2 Backup Path Alerts............................................................................................................4-58
4.9 GRS 77 /GMU 44........................................................................................................................4-59
4.9.1 Configuration Pages..........................................................................................................4-59
4.9.2 Common Problems............................................................................................................4-60
4.9.3 Common Alerts..................................................................................................................4-61
4.9.4 Backup Path Alerts............................................................................................................4-62
4.9.5 GMU Related Alerts...........................................................................................................4-63
4.10 GDC 74A.....................................................................................................................................4-63
4.10.1 Common Problems............................................................................................................4-63
4.10.2 GDC 74A Related Alerts....................................................................................................4-63
4.10.3 Backup Path Alerts............................................................................................................4-64
4.11 GDL 69/69A Configuration Pages...............................................................................................4-65
4.11.1 GDL 69 Page.....................................................................................................................4-65
4.11.2 Common Problems............................................................................................................4-67
4.11.3 GDL 69/69A Related Alerts...............................................................................................4-68
4.11.4 GCU 476 Troubleshooting.................................................................................................4-69
4.12 GFC 700......................................................................................................................................4-70
4.12.1 Configuration Pages..........................................................................................................4-70
4.12.2 GFC 700 Pre-Flight Test Sequence and Troubleshooting................................................4-72
4.13 Backshell Connectors..................................................................................................................4-79
5G1000 EQUIPMENT REMOVAL AND REPLACEMENT.................................................................5-1
5.1 GDU 1040 PFD/GDU 1042 MFD ..................................................................................................5-2
5.2 GMA 1347 Audio Panel.................................................................................................................5-2
5.3 GIA 63 Integrated Avionics Units ..................................................................................................5-2
5.4 GEA 71 Engine/Airframe Unit .......................................................................................................5-3
5.5 GTX 33 Transponder.....................................................................................................................5-3
5.6 GDC 74A Air Data Computer........................................................................................................5-3
5.7 GTP 59 OAT Probe.......................................................................................................................5-4
5.8 GRS 77 AHRS...............................................................................................................................5-4

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5.9 GMU 44 Magnetometer.................................................................................................................5-4
5.10 GDL 69A Data Link .......................................................................................................................5-5
5.11 GCU 476........................................................................................................................................5-5
5.12 GSA 81 Autopilot Roll Servo.........................................................................................................5-5
5.13 GSM 85 Autopilot Roll Servo Mount .............................................................................................5-6
5.14 GSA 81 Autopilot Pitch Servo .......................................................................................................5-6
5.15 GSM 85 Autopilot Pitch Servo Mount............................................................................................5-7
5.16 GTA 82 Pitch Trim.........................................................................................................................5-7
5.17 GSM Slip Clutch Adjustment Procedure.......................................................................................5-7
5.18 Configuration Module Removal and Replacement .......................................................................5-8
5.19 GEA 71 Backshell Thermocouple Removal and Replacement...................................................5-10
6G1000 EQUIPMENT CONFIGURATION AND TESTING................................................................6-1
6.1 GDU 1040 PFD/GDU 1042 MFD ..................................................................................................6-1
6.1.1 PFD/MFD Software Loading using GDU V6.XX .................................................................6-1
6.1.2 PFD/MFD Configuration using GDU V6.XX........................................................................6-2
6.1.3 MFD & PFD software loading and Configuration using GDU V8.XX ..................................6-5
6.1.4 Aviation Database Loading..................................................................................................6-5
6.1.5 PFD/MFD Test.....................................................................................................................6-6
6.2 GMA 1347 Audio Panel.................................................................................................................6-8
6.2.1 GMA 1347 Software Loading using GDU V6.XX ................................................................6-8
6.2.2 GMA 1347 Configuration using GDU V6.XX.......................................................................6-9
6.2.3 GMA 1347 Software Load and Configuration using GDU V8.XX......................................6-10
6.2.4 GMA 1347 Test .................................................................................................................6-14
6.3 GIA 63 Integrated Avionics Unit..................................................................................................6-15
6.3.1 GIA 63 Software Loading using GDU V6.XX ....................................................................6-15
6.3.2 GIA 63 Configuration using GDU V6.XX...........................................................................6-18
6.3.3 GIA 63 Certification Gain Loading.....................................................................................6-19
6.3.4 GIA 63 Software Load and Configuration using GDU V8.XX............................................6-20
6.3.5 GIA 63 Test .......................................................................................................................6-23
6.4 GEA 71 Engine/Airframe Unit .....................................................................................................6-25
6.4.1 GEA 71 Software Loading using GDU V6.XX...................................................................6-25
6.4.2 GEA 71 Configuration Loading using GDU V6.XX............................................................6-27
6.4.3 GEA 71 Software Load and Configuration using GDU V8.XX..........................................6-28
6.4.4 GEA 71 Calibration using GDU V6.XX..............................................................................6-31
6.4.5 GEA 71 Calibration using GDU V8.XX..............................................................................6-34
6.4.6 Aileron and Elevator Trim Calibration................................................................................6-39
6.4.7 GEA 71 Test......................................................................................................................6-41
6.5 GTX 33 Transponder...................................................................................................................6-43
6.5.1 GTX 33 Software Loading using GDU V6.XX...................................................................6-43
6.5.2 GTX 33 Configuration Loading using GDU V6.XX............................................................6-44
6.5.3 GTX 33 Software Load and Configuration using GDU V8.XX ..........................................6-46
6.5.4 GTX 33 Test ......................................................................................................................6-49
6.6 GDC 74A Air Data Computer......................................................................................................6-50
6.6.1 GDC 74A Software Loading using GDU V6.XX................................................................6-50
6.6.2 GDC 74A Configuration Loading using GDU V6.XX.........................................................6-51
6.6.3 GDC 74A Software Load and Configuration using GDU V8.XX .......................................6-52
6.6.4 GDC 74A Test ...................................................................................................................6-55
6.7 GRS 77 AHRS / GMU 44 Magnetometer....................................................................................6-57
6.7.1 GRS 77 Software Loading using GDU V6.XX...................................................................6-57
6.7.2 GMU 44 Software Loading using GDU V6.XX..................................................................6-58
6.7.3 GRS 77 / GMU 44 Software Load and Configuration using GDU V8.XX .........................6-60
6.7.4 GRS/GMU Calibration.......................................................................................................6-63
6.7.5 GRS/GMU Test .................................................................................................................6-71
6.7.6 GRS 77 Earth Magnetic Field Updates.............................................................................6-71
6.8 GDL 69A Data Link .....................................................................................................................6-72
6.8.1 GDL 69A Software Loading using GDU V6.XX.................................................................6-72

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6.8.2 GDL 69A Configuration Loading using GDU V6.XX .........................................................6-73
6.8.3 GDL 69A Software Load and Configuration using GDU V8.XX........................................6-74
6.8.4 GDL 69A Test....................................................................................................................6-77
6.9 GSA 81 Autopilot Servos/GTA 82 Pitch Trim Adapter................................................................6-78
6.9.1 GSA 81 Servo Software Loading using GDU V6.XX ........................................................6-78
6.9.2 GTA 82 Pitch Trim Adapter Software Loading using GDU V6.XX....................................6-80
6.9.3 GIA 63, GSA 81 and GTA 82 Certification Gain Loading using GDU V6.XX....................6-82
6.9.4 Servo Software Load and Configuration using GDU V8.XX .............................................6-84
6.10 GFC 700 Autopilot Ground Checks.............................................................................................6-87
6.10.1 Autopilot Pre-Flight Test....................................................................................................6-87
6.10.2 AFCS Switch Checks ........................................................................................................6-88
6.10.3 Autopilot Clutch Overpower Check ...................................................................................6-89
6.10.4 Manual Electric Trim Speed Check...................................................................................6-89
6.10.5 Autopilot Operation Checks...............................................................................................6-89
6.10.6 Servo Torque Limit Validation ...........................................................................................6-90
6.11 GCU 476 Remote Keypad...........................................................................................................6-93
6.11.1 GCU 476 Software Upload using GDU V6.XX..................................................................6-93
6.11.2 GCU 476 Configuration Loading using GDU V6.XX .........................................................6-94
6.11.3 GCU 476 Software Load and Configuration using GDU V8.XX........................................6-96
6.11.4 GCU 476 Boot Block Upgrade ..........................................................................................6-98
6.12 Optional Systems......................................................................................................................6-100
6.12.1 Enabling TAWS using GDU V6.XX .................................................................................6-100
6.12.2 TAWS Activation using GDU V8.XX................................................................................6-101
6.12.3 ChartView........................................................................................................................6-102
6.12.4 Oxygen System using GDU V6.XX .................................................................................6-103
6.12.5 Oxygen System using GDU V8.XX .................................................................................6-104
6.12.6 WX-500 Stormscope Configuration using GDU V6.XX...................................................6-106
6.12.7 WX-500 Stormscope using GDU V8.XX .........................................................................6-108
6.12.8 Ryan 9900BX TCAD Configuration using GDU V6.XX...................................................6-109
6.12.9 Ryan 9900BX TCAD Configuration using GDU V8.XX...................................................6-111
6.13 Complete G1000 software load using GDU V8.XX...................................................................6-112
6.14 Software/Configuration Troubleshooting...................................................................................6-116
6.14.1 System Communication Hierarchy..................................................................................6-117
7SYSTEM RETURN TO SERVICE PROCEDURE............................................................................7-1
7.1 GIA Failure Test ............................................................................................................................7-1
7.2 Display Failure Test.......................................................................................................................7-2
7.3 AHRS/ADC Backup Path Test ......................................................................................................7-2
7.4 Maintenance Records ...................................................................................................................7-2
8REQUIRED EQUIPMENT ................................................................................................................8-1
8.1 G1000 Required Equipment..........................................................................................................8-1
8.2 Weight & Balance..........................................................................................................................8-1
List of Figures
Figure 2-1. G1000/350/400 Display Configuration....................................................................................2-1
Figure 2-2. GIA 63 Integrated Avionics Unit..............................................................................................2-2
Figure 2-3. GEA 71 Engine/Airframe Unit.................................................................................................2-2
Figure 2-4. GTX 33 Mode S Transponder.................................................................................................2-3
Figure 2-5. GDC 74A Air Data Computer..................................................................................................2-4
Figure 2-6. GRS 77 AHRS........................................................................................................................2-4
Figure 2-7. GMU 44 Magnetometer ..........................................................................................................2-5
Figure 2-8. GSA 81 Servo and GSM 85 Servo Mount..............................................................................2-5
Figure 2-9. GTA 82 Pitch Trim Adapter.....................................................................................................2-6
Figure 2-10. GCU 476...............................................................................................................................2-6
Figure 2-11. Power Distribution.................................................................................................................2-9
Figure 2-12. Shield Block Installation to Backshell (78-pin Connector Example)...................................2-10
Figure 2-13. G1000 System Interface.....................................................................................................2-12

G1000-Columbia 350/400 System Maintenance Manual Page vii
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Figure 2-14. Flight Instrumentation Interface..........................................................................................2-13
Figure 2-15. G1000 Engine/Airframe Interface.......................................................................................2-14
Figure 2-16. G1000 Navigation/Communications...................................................................................2-15
Figure 3-1. GDU 1040/1042 Control Interface..........................................................................................3-1
Figure 3-2. GCU 476 Controls....................................................................................................................3-1
Figure 3-3. GMA 1347 Controls ................................................................................................................3-2
Figure 3-4. G1000 Softkeys ......................................................................................................................3-2
Figure 3-5. AFCS Controls........................................................................................................................3-3
Figure 3-6. Normal Mode ..........................................................................................................................3-4
Figure 3-7. MFD Failure Mode..................................................................................................................3-5
Figure 3-8. PFD Failure Mode...................................................................................................................3-5
Figure 3-9. G1000 LRU Configuration File Storage..................................................................................3-8
Figure 3-10. GRS/GDC Configuration Settings Storage...........................................................................3-9
Figure 3-11. SET>ACTV Diagram...........................................................................................................3-10
Figure 3-12. Loss of Communication ......................................................................................................3-11
Figure 3-13. Configuration Status...........................................................................................................3-11
Figure 3-14. Data Transmission Indicators.............................................................................................3-11
Figure 3-15. Configuration Page Navigator.............................................................................................3-12
Figure 4-1. System Status Page (AUX Group Normal Mode)...................................................................4-1
Figure 4-2. Alerts and Annunciations........................................................................................................4-2
Figure 4-3. WARNING Softkey Annunciation............................................................................................4-3
Figure 4-4. CAUTION Softkey Annunciation.............................................................................................4-3
Figure 4-5. ADVISORY Softkey Annunciation ..........................................................................................4-3
Figure 4-6. System Annunciations ............................................................................................................4-4
Figure 4-7. AFCS Annunciation Field........................................................................................................4-4
Figure 4-8. TAWS Annunciation Field.......................................................................................................4-5
Figure 4-9. AFCS Annunciation Field......................................................................................................4-12
Figure 4-10. GMA CONFIGURATION Page...........................................................................................4-34
Figure 4-11. Backup Path Alerts .............................................................................................................4-38
Figure 4-12. RS-232/ARINC 429.............................................................................................................4-39
Figure 4-13. CAN/RS-485 CONFIGURATION Page ..............................................................................4-40
Figure 4-14. GIA I/O CONFIGURATION Page.......................................................................................4-41
Figure 4-15. COM SETUP Page.............................................................................................................4-42
Figure 4-16. GIA STATUS Page.............................................................................................................4-43
Figure 4-17. ENGINE DATA Page..........................................................................................................4-53
Figure 4-18. GEA STATUS Page............................................................................................................4-54
Figure 4-19. GEA 71 Data Paths ............................................................................................................4-56
Figure 4-20. GTX 33 Data Paths.............................................................................................................4-58
Figure 4-21. AHRS/AIR DATA INPUT Page...........................................................................................4-59
Figure 4-22. GRS 77 Data Paths ............................................................................................................4-62
Figure 4-23. GDC 74A Data Paths..........................................................................................................4-64
Figure 4-24. GDL 69 Page......................................................................................................................4-65
Figure 4-25. GDL 69 Data Paths.............................................................................................................4-68
Figure 4-26. GCU 476 Data Paths..........................................................................................................4-69
Figure 4-27. GFC CONFIGURATION Page............................................................................................4-70
Figure 4-28. GFC STATUS Page............................................................................................................4-71
Figure 4-29. GIA 63 Backshell Connectors.............................................................................................4-79
Figure 4-30. GEA 71 Backshell Connectors ...........................................................................................4-80
Figure 4-31. GMA 1347 Backshell Connectors.......................................................................................4-80
Figure 4-32. GTX 33 Backshell Connectors............................................................................................4-80
Figure 4-33. GDU 1040/42/44 Backshell Connector (P10001)...............................................................4-81
Figure 4-34. GRS 77 Backshell Connector (P771).................................................................................4-81
Figure 4-35. GDC 74A Backshell Connector (P741) ..............................................................................4-81
Figure 4-36. GCU 476 Backshell Connector (P4751).............................................................................4-81
Figure 4-37. GDL 69/69A Backshell Connector (P691)..........................................................................4-81
Figure 5-1. System Status Page (Configuration Mode) ............................................................................5-1

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Figure 5-2. Configuration Module Installation ...........................................................................................5-8
Figure 5-3. GEA Backshell Thermocouple..............................................................................................5-10
Figure 6-1. G1000 Normal Mode Check...................................................................................................6-7
Figure 6-2. G1000 Reversionary Mode Check..........................................................................................6-7
Figure 6-3. Marker Beacon Symbology...................................................................................................6-14
Figure 6-4. GPS Signal Status................................................................................................................6-23
Figure 6-5. Aileron and Elevator Trim Calibration...................................................................................6-39
Figure 6-6. G1000/350/400 Engine/Airframe Indicators .........................................................................6-41
Figure 6-7. Magnetometer Interference Test ..........................................................................................6-70
Figure 6-8. Magnetometer Interference Test Complete..........................................................................6-70
Figure 6-9. GFC 700 Pre-Flight Test.......................................................................................................6-87
Figure 6-10. GFC Status Page, Pitch Servo...........................................................................................6-91
List of Tables
Table 1-1. Required Documents...............................................................................................................1-3
Table 1-2. Reference Documents .............................................................................................................1-4
Table 2-1. Parts Needed for Shield Block Installation.............................................................................2-11
Table 4-1. Monitor Processor PFT Faults ...............................................................................................4-76
Table 4-2. Monitor Processor Normal Mode Faults ................................................................................4-76
Table 4-3. Control Processor PFT Faults................................................................................................4-77
Table 4-4. Control Processor Normal Mode Faults.................................................................................4-77
Table 5-1. Thermocouple Kit (011-00981-00).........................................................................................5-10
Table 6-1. Measured Tension .................................................................................................................6-92

G1000-Columbia 350/400 System Maintenance Manual Page 1-1
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1 INTRODUCTION
1.1 Content, Scope, and Purpose
This document provides information for field maintenance of the Garmin G1000 Integrated Cockpit
Avionics Suite as installed in the Columbia 350/400. This document is required by the Instructions for
Continued Airworthiness, 190-00577-01, to perform continued airworthiness maintenance on the
installation. Use the information presented in the manual in conjunction with required documents shown
in Table 1-1.
1.1.1 Applicability
This document applies to all 350/400 aircraft equipped with the G1000 Integrated Cockpit Avionics Suite
installed.
1.2 Organization
The following outline briefly describes the organization of this manual:
Section 2: System Description
Provides a complete description of the type design change associated with installing the G1000
integrated cockpit system in the Columbia 350/400. An overview of the electrical systems and
G1000 system interface is also provided.
Section 3: G1000 Control & Operation
Presents basic control and operation information specifically tailored to maintenance practices. Basic
G1000 Configuration Mode operation is also described.
Section 4: Troubleshooting
Provides troubleshooting information to aid in diagnosing and resolving potential problems with the
G1000 system.
Section 5: G1000 Equipment Removal & Replacement
Gives instructions for the removal and replacement of G1000 equipment.
Section 6: G1000 Equipment Configuration & Testing
Gives instructions for loading software, configuring, and testing of G1000 equipment.
Section 7: System Return to Service Procedure
Specifies return-to-service procedures to be performed upon completion of maintenance of the G1000
system.
Section 8: Required Equipment
Provides part number for the latest revision of the Required Equipment List. The list will provide the
specific code loader part number, software part number, and software version.
Appendix A: Full G1000 Software/Configuration Procedure
Provides a complete software/configuration loading procedure in cases where the G1000 system as a
whole requires complete software/configuration update or reload.

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1.3 Definitions/Abbreviations
ADI: Attitude Display Indicator
AHRS: Attitude Heading Reference System
AMM: Airplane Maintenance Manual
CDU: Control Display Unit
CFR: Code of Federal Regulations
EAU: Engine/Airframe Unit
EIS: Engine Instrumentation Systems
HIRF: High Intensity Radiated Fields
HSDB: High-Speed Data Bus (Ethernet)
IAU: Integrated Avionics Unit
ICS: Inter-Com System
LRU: Line Replaceable Unit
MFD: Multi-Function Flight Display
OAT: Outside Air Temperature
PFD: Primary Flight Display
STC: Supplemental Type Certificate
S/W: Software
TC: Type Certificate
TSO: Technical Standard Order
TVS: Transient Voltage Suppressor
VHF: Very High Frequency
1.3.1 Units of Measure
Unless otherwise stated, all units of measure are English units.

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1.4 Reference Publications
The following documents are required in addition to this maintenance manual to perform maintenance:
Table 1-1. Required Documents
Document Part Number Vendor
G1000/350/400 Required Equipment List RB011002 CAM (Columbia
Aircraft Manufacturing)
G1000 Cockpit Reference Guide for the Columbia 350/400 190-00567-00 Garmin
G1000 Cockpit Reference Guide for the Columbia 350/400
(updated for GDU V8.XX software) 190-00567-01 Garmin
Columbia 350 (G1000) Pilot’s Operating Handbook and
FAA Approved AFM RB050005 CAM
Columbia 400 (G1000) Pilot’s Operating Handbook and
FAA Approved AFM RC050005 CAM
Columbia 350 Airplane Maintenance Manual RB050002F CAM
Columbia 400 Airplane Maintenance Manual RC050001C CAM

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The following documents provide additional information above and beyond the scope of this document.
The part numbers are Garmin part numbers unless otherwise noted.
Table 1-2. Reference Documents
Document Part Number
Airplane Electrical Manual, Columbia 350 RB24009 [1]
Airplane Electrical Manual, Columbia 400 RC24008 [1]
G1000 Software Loading and Post Installation Checkout Columbia 350/400 190-00577-02
G1000 V8.XX Software Loading and Post Installation Checkout
Columbia 350/400 190-00577-04
G1000 Configuration Manual 190-00303-04
Aircraft Fastener Assembly Torque 005-00249-00
Aircraft Contact and Terminal Crimping 005-00249-01
Heat Shrink Tubing Application 005-00249-02
Aircraft Soldering 005-00249-03
G1000 System Installation Manual 190-00303-00
GDU 104X Installation Manual 190-00303-01
GMA 1347 Installation Manual 190-00303-20
GIA 63 Installation Manual 190-00303-05
GEA 71 Installation Manual 190-00303-40
GDC 74A Installation Manual 190-00303-15
GRS 77 /GMU 44 Installation Manual 190-00303-10
GTX 33 Installation Manual 190-00303-61
GDL 69/69A Installation Manual 190-00355-02
GSA/GSM 8X Installation Manual 190-00303-72
GCU 47X Installation Manual 190-00303-75
GTA 82 Installation Manual 190-00303-74
GDL 69/69A XM™ Satellite Radio Activation Instructions 190-00355-04
[1] Columbia Aircraft Manufacturing P/N
1.5 Distribution
This document is to be a permanent aircraft record and is distributed with a new G1000-equipped
Columbia 350/400 aircraft. Revisions to this document will be made by Garmin and will be distributed
by Garmin per standard documentation revision procedures.

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2 SYSTEM DESCRIPTION
The G1000 integrated cockpit is installed in the Columbia 350/400 using the equipment listed in this
section.
Structures in the Columbia 350/400 must be modified and/or installed per drawing located in the Airplane
Electrical Manual, part number RB240009 (Columbia 350) or part number RC240008 (Columbia 400).
NOTE
The Airplane Electrical Manual, part number RB240009 (Columbia 350) or RC240008
(Columbia 400) contains drawings that support the system description and aid in G1000
system installation awareness.
2.1 Equipment Descriptions
2.1.1 GDU 1040 PFD and GDU 1042 MFD
Figure 2-1. G1000/350/400 Display Configuration
Two Garmin GDUs are installed in the 350/400 instrument panel. The PFD is a GDU 1040 and the MFD
is a GDU 1042. Both displays provide control and display of nearly all functions of the G1000 integrated
cockpit system. The displays are located side-by-side, with the GMA 1347 Audio Panel located in the
middle.
Both displays are installed in the instrument panel using built-in ¼-turn fasteners. Each display uses a
single Garmin 62-pin connector. Electrical power to the PFD is from the essential bus, whereas the MFD
receives power from the Avionics bus.
On the panel, traditional attitude, altitude, and airspeed indicators are provided as backup instruments.
These are mounted in a vertical configuration to the right of the MFD.
2.1.2 GMA 1347 Audio Panel
The Garmin GMA 1347 Audio Panel is a digital audio panel with integrated marker beacon receiver. The
GMA 1347 provides control of all cockpit intercom/mic systems as well as NAV/COM/ILS audio. The
unit also provides display reversion mode control through a large red button. Power is received from the
Avionics bus; consequently the unit only powers up when the avionics master switch is turned on. The
GMA 1347 interfaces with the existing marker beacon antenna as well as existing mic and phone jacks.

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2.1.3 GIA 63 Integrated Avionics Unit
Figure 2-2. GIA 63 Integrated Avionics Unit
Two Garmin GIA 63 IAUs provide VHF COM, VHF NAV, GPS NAV and other various navigation
functions, as well as control logic for the Garmin GFC 700 autopilot. GIAs provide communication
interface to all other G1000 LRUs in the system. Both GIAs are located directly behind the MFD,
installed into their respective LRU racks. The #1 GIA is powered through the essential bus and
immediately powers up when the left battery or right battery master switch is turned on. The #2 GIA
receives power through the Avionics bus and powers up when the avionics master switch is turned on.
Both GIA 63s interface to the following equipment:
•Existing VOR/LOC/Glideslope Antenna System
•Existing VHF COM 1 & 2 Antennas
•Existing GPS 1 & 2 Antennas
•WX-500 StormScope (#2 GIA Only)
•GFC 700 Autopilot
•Ryan TCAD (#2 GIA Only)
•CO Detector (#2 GIA Only)
2.1.4 GEA 71 Engine/Airframe Unit
Figure 2-3. GEA 71 Engine/Airframe Unit
The Garmin GEA 71 Engine/Airframe Unit provides engine/airframe data to the G1000 system. Data
received from transducers/sensors is processed, then sent via RS-485 to a GIA 63, and subsequently to the
GDU 1040 MFD. The GEA 71 is connected to both GIA 63s for redundant communications. In display
reversionary mode, engine instrumentation is displayed on the PFD as well. The GEA is located directly
behind the PFD in its LRU rack. Power is received from the essential bus.

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2.1.4.1 Engine/Airframe Sensors
The GEA interfaces to the following:
The following equipment, systems and sensors interface to the G1000 avionics systems:
•Existing Manifold Pressure Sensor
•Existing Tachometer Sensor
•Existing Oil Pressure Sensor And Low Pressure Switch
•Existing Oil Temperature Sensor
•Existing Cylinder Head Temperature (CHT) Sensors
•Exhaust Gas Temperature (EGT) Sensors
•Existing Turbine Inlet Temperature (TIT) Sensors (Columbia 400 only)
•Existing Fuel Level Sensors (Four)
•Existing Low Fuel Switches (L And R)
•Existing Fuel Selector Position Switches
•Existing Fuel Flow Sensor
•Existing Electrical System Sensors And Alternator Inoperative Switches
•Existing Open Door Detection Switch
•Existing Aileron And Elevator Position Sensors
•Existing Oxygen System Sensors And Switches
•Existing Starter Engage System
2.1.5 GTX 33 Mode S Transponder
Figure 2-4. GTX 33 Mode S Transponder
The Garmin GTX 33 provides Mode A, C, and S altitude and position reporting information from the
G1000 system. The unit is mounted directly behind the PFD in its LRU rack. Power is received from the
Avionics Bus. The GTX 33 sends data via RS-232 directly to a GIA 63. Information is then sent to the
PFD, where the pilot can control the transponder. The GTX 33 is connected to both GIA 63s for
redundant communications. The GTX 33 interfaces with the existing transponder antenna.

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2.1.6 GDC 74A Digital Air Computer
Figure 2-5. GDC 74A Air Data Computer
The Garmin GDC 74A provides digital air data to the G1000 system. The unit is mounted to its rack
directly behind the PFD. Power is received from the Essential Bus. The GDC 74A connects to existing
pitot/static ports. Air data is sent to the PFD for display. Four redundant data paths exist to the PFD,
MFD, and both GIAs.
2.1.7 OAT Probe
The Garmin GTP 59 OAT Probe provides the GDC 74A with air temperature data. The OAT probe is
mounted to the bottom side of the left wing.
2.1.8 GRS 77 Attitude and Heading Reference System
Figure 2-6. GRS 77 AHRS
The Garmin GRS 77 AHRS provides attitude and heading information to the G1000 system. The unit is
mounted below the aft baggage compartment. Power is received from the Essential Bus. The GRS 77
interfaces with and provides power to the GMU 44 Magnetometer. The GRS 77 supplies attitude and
heading information directly to the PFD, MFD, and to both GIAs.