ENSTROM TH-28/480 Series User manual
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ENSTROM TH-28/480 SERIES MAINTENANCE MANUAL
SUPPLEMENT 8
G1000H INTEGRATED FLIGHT DECK SYSTEM
The Airworthiness Limitations Section is FAA approved and specifies
inspections and other maintenance required under 14 CFR §§ 43.16 and
91.403 of the Federal Aviation Regulations unless an alternative program
has been FAA approved.
Copyright 2014, 2018 by
The Enstrom Helicopter Corporation
2209 22
nd
Street
Menominee, Michigan 49858-3515
Telephone: 906-863-1200
Fax: 906-863-6821
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May 14/14
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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
May 14/14
Page iii
RECOMMENDED CHANGE REPORT
This maintenance manual is prepared and distributed by The Enstrom Helicopter Corporation and
is intended for use by personnel responsible for maintaining Enstrom TH-28, 480, and 480B
helicopters. This manual is periodically revised. If, in the opinion of the user, any information has
been omitted or requires clarification, please direct your comments to Enstrom via this form
(duplicate) or other similar form. Send the recommended changes to:
The Enstrom Helicopter Corporation
2209 22nd Street
Menominee, MI 49858-3515
ATTN: Technical Publications
Manual Identification: Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Manual Date: May 14/14
Revision Number and Date:
Aircraft Model:
Recommended Change:
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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page v
RECORD OF REVISIONS
REV ISSUE
DATE DATE
INSERTED BY REV ISSUE
DATE DATE
INSERTED BY
1 Jan 25/18 Jan 25/18 JW
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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page vii
TABLE OF CONTENTS
Chapter Page
Cover Page................................................................................................................................................. i
Recommended Change Report.................................................................................................................iii
Record of Revisions................................................................................................................................... v
Table of Contents......................................................................................................................................vii
List of Figures ............................................................................................................................................ x
List of Tables.............................................................................................................................................. x
List of Diagrams.........................................................................................................................................xi
Effective Page List...................................................................................................................................xiii
INTRODUCTION
Avionic System(s) Effectivity.....................................................................................................................xv
Aircraft Effectivity ...................................................................................................................................xv
Supplemental Changes and Revisions....................................................................................................xvi
Service Document Publications...............................................................................................................xvi
Application of Warnings, Cautions, and Notes .......................................................................................xvii
System Description......................................................................................................................1-1
System Overview.......................................................................................................................1-1
GDU 1040H Displays (PFD/MFD).............................................................................................1-6
GIA 63H Integrated Avionics Unit..............................................................................................1-6
GEA 71H Engine Aircraft I/O Unit..............................................................................................1-7
ST 32 Signal Conditioners.........................................................................................................1-7
GTX 33H w/ES Transponder.....................................................................................................1-7
GRS 77H AHRS with GMU 44 Magnetometer..........................................................................1-8
GDC 74H Air Data Computer with GTP 59 OAT Probe ............................................................1-9
Caution and Warning System..................................................................................................1-11
CMC Data Logging ..................................................................................................................1-11
Vendor Publications.................................................................................................................1-12
G1000H Software Versions.....................................................................................................1-13
Airworthiness Limitations.........................................................................................................1-14
Servicing, Troubleshooting and Periodic Inspection.............................................................1-15
Servicing..................................................................................................................................1-15
Troubleshooting.......................................................................................................................1-15
Periodic Inspections.................................................................................................................1-15
G1000H Controls........................................................................................................................1-16
Secure Digital Cards................................................................................................................1-18
Softkey Function......................................................................................................................1-19
System Power Up....................................................................................................................1-19
System Status Page ................................................................................................................1-20
G1000H Modes of Operation...................................................................................................1-21
System Maintenance..................................................................................................................1-25
GDU 1040H MFD/PFD (Figure 18).........................................................................................1-29
GDU 1040H MFD/PFD Cooling Fan (Figure 19, Figure 20)...................................................1-30
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G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
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GIA 63H Integrated Avionics Unit (Figure 21) ........................................................................1-32
GRS 77H AHRS (Figure 22, Figure 23) .................................................................................1-33
GMU 44 Magnetometer (Figure 24)........................................................................................1-35
GDC 74H Air Data Computer (Figure 25)...............................................................................1-37
GEA 71H Engine and Airframe (Figure 26)............................................................................1-39
GTX 33H Transponder (Figure 27).........................................................................................1-41
ST 32 Signal Conditioner (Figure 28).....................................................................................1-42
Avionics Cooling Fan...............................................................................................................1-43
Crew Alerting System ..............................................................................................................1-44
G1000H System Wiring Diagrams ............................................................................................1-53
2.1System Description......................................................................................................................2-1
2.1.1Vendor Publications...................................................................................................................2-1
2.2Airworthiness Limitations...........................................................................................................2-2
2.3Servicing, Troubleshooting, and Periodic Inspections............................................................2-3
2.3.1Servicing....................................................................................................................................2-3
2.3.2Troubleshooting.........................................................................................................................2-3
2.3.3Periodic Inspections...................................................................................................................2-3
2.4System Maintenance – GTS 800.................................................................................................2-4
2.4.1Scheduled Maintenance ............................................................................................................2-4
2.4.2Removal.....................................................................................................................................2-4
2.4.3Installation..................................................................................................................................2-4
3.1System Description......................................................................................................................3-1
3.1.1Vendor Publications...................................................................................................................3-1
3.2Airworthiness Limitations...........................................................................................................3-2
3.3Servicing, Troubleshooting, and Periodic Inspections............................................................3-3
3.3.1Servicing....................................................................................................................................3-3
3.3.2Troubleshooting.........................................................................................................................3-3
3.3.3Periodic Inspections...................................................................................................................3-3
3.4System Maintenance – GDL 69AH..............................................................................................3-4
3.4.1Scheduled Maintenance ............................................................................................................3-4
3.4.2Removal.....................................................................................................................................3-4
3.4.3Installation..................................................................................................................................3-4
4.1System Description......................................................................................................................4-1
4.1.1Vendor Publications...................................................................................................................4-1
4.2Airworthiness Limitations...........................................................................................................4-2
4.2.1Retirement Life...........................................................................................................................4-2
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G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
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4.3Servicing, Troubleshooting, and Periodic Inspections............................................................4-3
4.3.1Servicing....................................................................................................................................4-3
4.3.2Troubleshooting.........................................................................................................................4-3
4.3.3Periodic Inspections...................................................................................................................4-3
4.4System Maintenance – MD302....................................................................................................4-4
4.4.1Scheduled Maintenance ............................................................................................................4-4
4.4.2Removal.....................................................................................................................................4-4
4.4.3Installation..................................................................................................................................4-4
5.1System Description......................................................................................................................5-1
5.1.1Vendor Publications...................................................................................................................5-1
5.2Airworthiness Limitations...........................................................................................................5-2
5.3Servicing, Troubleshooting, and Periodic Inspections............................................................5-3
5.3.1Servicing....................................................................................................................................5-3
5.3.2Troubleshooting.........................................................................................................................5-3
5.3.3Periodic Inspections...................................................................................................................5-3
5.4System Maintenance – KN 63 .....................................................................................................5-4
5.4.1Scheduled Maintenance ............................................................................................................5-4
5.4.2Removal.....................................................................................................................................5-4
5.4.3Installation..................................................................................................................................5-4
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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page x
LIST OF FIGURES
Figure 1. G1000H Installation Block Diagram...........................................................................................1-2
Figure 2. G1000H System LRU Installation Reference............................................................................1-3
Figure 3. Instrument Panel Mounted LRUs and Caution/Warning System Annunciators ........................1-3
Figure 4. Upper Console Mounted LRUs..................................................................................................1-4
Figure 5. Keel Mounted LRUs (bottom view of keel)................................................................................1-4
Figure 6. Antenna Installations .................................................................................................................1-5
Figure 7. PFD and MFD controls............................................................................................................1-16
Figure 8. NAV, CRS/BARO, COM, FMS, and ALT knobs......................................................................1-18
Figure 9. Display Bezel SD Card Slots...................................................................................................1-19
Figure 10. Softkeys.................................................................................................................................1-19
Figure 11. Example System Status Page...............................................................................................1-20
Figure 12. ‘Set’ and ‘Active’ Commands.................................................................................................1-23
Figure 13. Configuration Status Prompts................................................................................................1-24
Figure 14. System status indications ......................................................................................................1-24
Figure 15. Example System Status Page...............................................................................................1-25
Figure 16. Circuit Breaker, Switch, and Alert Panel................................................................................1-27
Figure 17. Emergency Circuit Breaker Panel..........................................................................................1-28
Figure 18. GDU 1040H Installation and Removal...................................................................................1-28
Figure 19. Shroud Installation.................................................................................................................1-30
Figure 20. PFD/MFD Cooling Fan Installation........................................................................................1-31
Figure 21. GIA 63H Installation and Removal.........................................................................................1-31
Figure 22. GRS 77H................................................................................................................................1-34
Figure 23. GRS 77H Installation .............................................................................................................1-34
Figure 24. GMU 44 Installation and Removal.........................................................................................1-36
Figure 25. GDC 74H Installation and Removal.......................................................................................1-38
Figure 26. GEA 71H Installation and Removal.......................................................................................1-40
Figure 27. GTX 33H Installations and Removal .....................................................................................1-40
Figure 28. Signal Conditioner Installation and Removal.........................................................................1-42
Figure 29. Avionics Cooling Fan Installation...........................................................................................1-43
Figure 30. GTS 800 Installation and Removal..........................................................................................2-5
Figure 31. GDL 69AH Installation and Removal.......................................................................................3-5
Figure 32. MD302 Installation and Removal.............................................................................................4-5
Figure 33. MD302 Configuration Set-Up (Reference 4192810-3 Rev. A) ................................................4-6
Figure 34. KN 63 Installation and Removal ..............................................................................................5-5
LIST OF TABLES
Table 1. G1000H System Vendor Manuals .............................................................................................1-12
Table 2. Software Versions......................................................................................................................1-13
Table 3. Data Path Status Indications......................................................................................................1-24
Table 4. DC Power Distribution................................................................................................................1-26
Table 5. GTS 800 Vendor Manuals ...........................................................................................................2-1
Table 6. GDL 69AH Vendor Manuals ........................................................................................................3-1
Table 7. MD302 Vendor Manuals..............................................................................................................4-1
Table 8. KN 63 Vendor Manuals................................................................................................................5-1
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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page xi
LIST OF DIAGRAMS
Diagram 1-1. G1000H Power Distribution Interface ................................................................................1-55
Diagram 1-2. G1000H Interface...............................................................................................................1-59
Diagram 1-3. G1000H Case Bonding and Grounding Interface..............................................................1-79
Diagram 1-4. G1000H Audio Panel Interface ..........................................................................................1-83
Diagram 1-5. G1000H Interior Lighting Interface.....................................................................................1-87
Diagram 1-6. G1000H Exterior Lighting Interface....................................................................................1-89
Diagram 1-7. G1000H Hour Meter Interface............................................................................................1-91
Diagram 1-8. G1000H Day/Night Annunciator Dimmer Interface............................................................1-93
Diagram 1-9. G1000H Power Distribution Interface ................................................................................1-95
Diagram 1-10. G1000H Interface.............................................................................................................1-99
Diagram 1-11. G1000H Ground Interface..............................................................................................1-119
Diagram 1-12. G1000H Interior Lighting Interface.................................................................................1-121
Diagram 2-1. GTS 800 Traffic Advisory System Interface.........................................................................2-9
Diagram 3-1. GDL 69AH Datalink Receiver Interface ...............................................................................3-9
Diagram 4-1. MD302 SAM Interface..........................................................................................................4-7
Diagram 5-1. KN 63 DME Interface...........................................................................................................5-6
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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page xv
INTRODUCTION
Avionic System(s) Effectivity
The data is presented in this supplement is applicable to the avionic systems options listed in the
following table.
Avionic System
Avionic System Enstrom Part Number Note
G1000H Installation 4220650-1
4220650-3 (Note 1, 3)
(Note 2, 3)
GTS 800 Traffic Advisory System 4220656-1
GDL 69AH XM Weather Receiver 4220660-1
MD302 Standby Attitude Module 4220677-1 (Note 2)
KN 63 Distance Measuring Equipment 4220686-1
NOTE 1
G1000H installation P/N 4220650-1 is certified as Non-
required Safety Enhancing Equipment (NORSEE) as the
helicopter is not equipped with a standby attitude module.
Without a standby attitude module, the equipment does not
meet all the operational requirements of some operating
rules (e.g. 14 CFR 135). The operator must verify this
installation is appropriate for its intended use.
NOTE 2
Standby attitude module P/N 4220677-1 is included in
G1000H installation P/N 4220650-3.
NOTE 3
The G1000H System Installation may include the GMA 350H
audio panel. For information regarding the GMA 350H audio
panel, refer to either the GMA 350H electrical schematic
(Diagram 1-4), TH-28/480 Series Maintenance Manual
Supplement 5, or 28-AC-051 Rotorcraft Flight Manual
Supplement for GMA 350H operation.
Aircraft Effectivity
The data presented in this TH-28/480 Series Maintenance Manual Supplement is applicable to
all 480B model helicopters.
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G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page xvi
Supplemental Changes and Revisions
Subsequent to the publication of the initial issue of this supplement, changes in the avionics
equipment, support concepts and procedures, as well as information developed by experience
may affect the contents of this supplement. To ensure that coverage in the supplement continues
to reflect such changes, revised information is released by one of the following methods:
1. Revision - A revision alters portions of the manual by replacement, addition, and/or
removal of pages.
2. Reissue - A reissue of this supplement will occur when the amount of changes warrants
complete reissue.
Service Document Publications
1. Service Directive Bulletins – Used to direct the owner/operator and/or maintenance
personnel to make mandatory changes, improvements, or inspections to the aircraft
applicable to the entire fleet or a segment of the fleet that are typically safety/airworthiness
related. The information provided in the Service Directive Bulletins will be incorporated in
the maintenance manual as needed at a later date. At the time of incorporation, the
Service Directive Bulletin is superseded by the maintenance manual, and accomplishment
or sign-off of the Service Directive Bulletin in the maintenance records book is no longer
required. A detailed entry should be made in the maintenance records to indicate that the
Service Directive Bulletin is superseded by the maintenance manual.
2. Service Information Letters – Used to transmit information, recommendations, and general
service instructions to the aircraft owner/operator and/or maintenance personnel
applicable to the entire fleet or a segment of the fleet. The information provided in the
Service Information Letters will be incorporated into the maintenance manual as needed
at a later date.
3. Service Instructions – Used to provide the owner/operator and/or maintenance personnel
with information that is applicable to specific aircraft and does not meet the criteria of a
Service Information Letter or Service Directive Bulletin. Service Instructions will not be
distributed to the entire fleet.
Service Information Letters and Service Directive Bulletins incorporated into the maintenance
manual are logged in the Service Information Letter Index or the Service Directive Bulletin Index
(as appropriate) located on the Enstrom Helicopter website: www.enstromhelicopter.com (follow
the applicable link under the Tech Publications section of the Technical Support page). Each
index numerically lists all Service Information Letters and Service Directive Bulletins, respectively,
and identifies those which have been incorporated into the maintenance manual. All Service
Information Letters and Service Directive Bulletins are also located under the Tech Publications
section of the website.
Enstrom distributes maintenance manual reissues and revisions in hardcopy form via mail to
owners and operators who are registered with Enstrom. Notice of recently released Service
Information Letters and Service Directive Bulletins is provided via a postcard mailing. Registration
to receive publication mailings can be coordinated through Enstrom Product Support.
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G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page xvii
Application of Warnings, Cautions, and Notes
Throughout this supplement, it is necessary to highlight or emphasize important points to avoid
injury to personnel, damage to equipment, or unnecessary confusion while performing
maintenance procedures. The terms “WARNING”, “CAUTION”, and “NOTE” are used to draw
attention to instructions or information deserving special consideration.
WARNING
Calls attention to use of materials, processes, methods, procedures, or limits
that must be followed to avoid injury to personnel.
CAUTION
Calls attention to methods and procedures that must be followed to avoid
damage to equipment.
NOTE
Calls attention to information essential to highlight for clarification of
procedures or to make a task easier.
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G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page 1-1
G1000H INTEGRATED FLIGHT DECK
SECTION 1
SYSTEM DESCRIPTION
System Description
The G1000H system is an integrated flight deck system that presents flight instrumentation,
position,navigation,communication, and identification information to the pilot through large format
displays. The G1000H system also includes instrument panel mounted caution/warning
annunciators and the Crew Alerting System (CAS) message display.
System Overview
The G1000H system installation consists of the following Line Replaceable Units (LRUs).
GDU 1040H Primary Flight Display (PFD) and Multi-Function Display (MFD)
GIA 63H Integrated Avionics Unit (2)
GEA 71H Engine/Airframe Unit (2)
ST 32 Signal Conditioner (2)
GTX 33H Mode S Transponder with Extended Squitter (ES)
GRS 77H Attitude and Heading Reference System (AHRS)
GMU 44 Magnetometer
GDC 74H Air Data Computer
GTP 59 Outside Air Temperature (OAT)
Cooling Fans (Avionics, PFD, and MFD)
(optional) GTS 800 Traffic Avoidance System (TAS) with GA 58 Antenna (see
Chapter 2)
(optional) GDL 69AH Satellite Data Link Receiver with GA 55 Antenna (see
Chapter 3)
(For G1000H P/N 4220650-3 only) MD302 Standby Attitude Module (SAM) (see
Chapter 4)
(optional) KN 63 Distance Measuring Equipment (DME) (see Chapter 5)
(optional) GMA 350H Audio Panel (see TH-28/480 Series Maintenance Manual
Supplement 5, Chapter 9)
The G1000H system block diagram is shown in Figure 1.
Figure 2 shows LRU installation locations or references to the applicable figure for
additional component installation detail.
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UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page 1-2
Figure 1. G1000H Installation Block Diagram
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