Garmin GTN 6 Series Maintenance Manual
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Garmin GTN 6 Series Maintenance Manual

Part 27 aml stc
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GTN 6XX/7XX
Part 27 AML STC Maintenance Manual
190-01007-B1
January 2020
Revision 4

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Summary of Contents for Garmin GTN 6 Series

  • Page 1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual 190-01007-B1 January 2020 Revision 4...
  • Page 2 Garmin. Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to...
  • Page 3 Included Flight Stream 510 to references of GTN and GMA 35 installations where appropriate. 2.1.4 Added section for description of Flight Stream 510. Updated list of optional GTN interfaces to include G500H TXi (EFIS display), Garmin 2.2.1 ADS-B traffic and FIS-B weather, and Flight Stream 510. 2.2.2 Updated Figure 2-1 GTN System Interface Diagram to include new interfaces.
  • Page 4 INFORMATION SUBJECT TO EXPORT CONTROL LAWS This document may contain information that is subject to the Export Administration Regulations (EAR) issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C) and may not be exported, released, or disclosed to foreign nationals inside or outside of the United States without first obtaining an export license.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ..........................1-1 Scope ............................1-2 Unit Return ..........................1-2 Organization ..........................1-2 Abbreviations ..........................1-3 Publications ..........................1-4 Distribution ..........................1-4 SYSTEM DESCRIPTION ........................2-1 Equipment Descriptions ......................2-2 GTN System Interfaces ......................2-4 GTN CONTROL AND OPERATION ....................3-1 GTN Controls ..........................3-2 Software Loading ........................3-3 GTN Configuration Mode Overview ..................3-7 Database Updates ........................3-19 TROUBLESHOOTING ........................4-1 GTN General Troubleshooting ....................4-2...
  • Page 6 6.13 HTerrain/HTAWS System Checks (For Units with HTerrain/HTAWS Only) ....6-26 APPENDIX A AIRCRAFT-SPECIFIC INFORMATION .............A-1 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page iii...
  • Page 7 LIST OF FIGURES Figure 2-1 GTN System Interface Diagram ..................2-5 Figure 2-2 GTN 6XX/7XX Connector Layout Detail................2-6 Figure 2-3 GMA 35 System Interface Diagram ..................2-7 Figure 2-4 GMA 35 Rear Connectors ....................2-7 Figure 3-1 GTN 6XX Control Features (GTN 650 Shown)..............3-2 Figure 3-2 GTN 7XX Control Features (GTN 750 Shown)..............3-2 Figure 3-3...
  • Page 8 LIST OF TABLES Table 1-1 GTN Related Publications ......................1-4 Table 3-1 GTN Database Summary ......................3-19 Table 4-1 GTN Troubleshooting Guide ....................4-2 Table 4-2 Alert Text Troubleshooting Guide ..................4-6 Table 4-3 COM Alert Troubleshooting Guide..................4-8 Table 4-4 GPS/SBAS Alert Troubleshooting Guide ................4-10 Table 4-5 VLOC/GS Alert Troubleshooting Guide................
  • Page 9 1 INTRODUCTION Scope ...............................1-2 Unit Return ............................1-2 Organization ............................1-2 Abbreviations ..........................1-3 Publications .............................1-4 Distribution .............................1-4 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page 1-1...

  • Page 10: Scope

    Stream 510 as installed under the GTN 6XX/7XX Part 27 STC. 1.2 Unit Return A Return Merchandise Authorization (RMA) number must be requested from Garmin before a Garmin unit is returned. Units returned without an RMA will be refused and returned at the sender's expense. Send units with assigned RMA numbers to the following address: Garmin International, Inc.

  • Page 11: Abbreviations

    Extended Squitter Receive FPGA Field-Programmable Gate Array Search and Rescue Glideslope SBAS Satellite Based Augmentation System Garmin Interface Adapter Source/Destination Identifiers Garmin Datalink Sign/Status Matrix Garmin Display Unit Supplemental Type Certificate Garmin Audio Panel Traffic Advisory System Garmin Navigation System...

  • Page 12: Publications

    Garmin dealer. Other contacts include Garmin Product Support at (913) 397-8200, (888) 606-5482, or using around the world contact information on flyGarmin.com. A Garmin Service Bulletin describing the revision to this document will be sent to Garmin dealers if the revision is determined to be significant.

  • Page 13: System Description

    2 SYSTEM DESCRIPTION Equipment Descriptions ........................2-2 2.1.1 GTN 6XX ..........................2-2 2.1.2 GTN 7XX ..........................2-2 2.1.3 GMA 35/35c Audio Panel .......................2-2 2.1.4 Flight Stream 510 ........................2-2 2.1.5 NAV Antenna Cable Splitter ....................2-3 2.1.6 NAV Antenna Cable Diplexer ....................2-3 2.1.7 HTAWS Annunciator ......................2-3 2.1.8 Cyclic Control Grip .........................2-3 GTN System Interfaces ........................2-4 2.2.1 GTN Optional Interfaces ......................2-4...

  • Page 14: Equipment Descriptions

    2.1 Equipment Descriptions The GTN WAAS navigators are a family of aviation panel-mounted products. The following sections will describe the available functions for each unit in the GTN 6XX/7XX navigators. 2.1.1 GTN 6XX The GTN 6XX WAAS navigators are a family of panel-mounted GPS/NAV/COM navigators.GTN 6XX units include the GTN 625, GTN 635, and GTN 650.

  • Page 15: Nav Antenna Cable Splitter

    2.1.5 NAV Antenna Cable Splitter The navigation antenna cable splitter (Garmin P/N 013-00112-00) is used for installations involving dual VHF navigation capable GTNs or a single VHF navigation capable GTN installation with a second non-Garmin navigation unit. 2.1.6 NAV Antenna Cable Diplexer GTN 650/750 navigation units have a single navigation antenna port and require a composite signal for those installations that include separate VOR/LOC and GS antennas.

  • Page 16: Gtn System Interfaces

    Weather, traffic, and terrain systems  HTAWS annunciator panels  Garmin Iridium transceiver  Radar altimeter  Garmin ADS-B traffic and FIS-B weather sources  Flight Stream 510  190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page 2-4...

  • Page 17: Figure 2-1 Gtn System Interface Diagram

    2.2.2 GTN 6XX/7XX Interfaces The GTN utilizes ARINC 429, RS-232, discrete inputs/outputs, and HSDB interfaces to communicate with other LRUs and systems on the rotorcraft. A summary of GTN interfaces is shown in Figure 2-1. Crossfill GPS/WAAS Antenna (from another GTN or GTN Xi Switches/ Annunciators...

  • Page 18: Figure 2-2 Gtn 6Xx/7Xx Connector Layout Detail

    The GTN 6XX/7XX interfaces with other avionics equipment through the rear connectors. The COM board is available only in the GTN 635, 650, and 750. The NAV board is present only in the GTN 650 and 750. NOTE Empty COM and NAV board connector positions on the these models are concealed with cover plates.

  • Page 19: Figure 2-3 Gma 35 System Interface Diagram

    GTN 7XX RS-232 Marker Beacon Control Head Antenna COM 1 Transceiver COM 2 Cockpit Speaker Transceiver COM 3 Transceiver Garmin Pilot/Co-pilot GMA 35 NAV 1 Radio Headsets (x2) Audio Panel NAV 2 Radio Passenger Headsets (x5) Marker Unswitched, Beacon Unmuted Audio...

  • Page 20: Gtn Control And Operation

    3 GTN CONTROL AND OPERATION GTN Controls ..........................3-2 Software Loading ..........................3-3 3.2.1 GTN Software Loader Card Creation ..................3-3 3.2.2 GMA 35 Software Loading .....................3-5 3.2.3 GMA 35 Boot Block Loading ....................3-6 GTN Configuration Mode Overview ....................3-7 3.3.1 GTN Software Updates ......................3-8 3.3.2 System Information .........................3-9 3.3.3 GTN Setup Page ........................3-10 3.3.4 GTN Options Page ........................3-12...

  • Page 21: Gtn Controls

    3.1 GTN Controls Figure 3-1 GTN 6XX Control Features (GTN 650 Shown) Figure 3-2 GTN 7XX Control Features (GTN 750 Shown) 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page 3-2...

  • Page 22: Software Loading

    NOTE An data card reader is needed to create the GTN Software Loader Card using the application that is downloaded from Garmin. The approved readers are SanDisk® SDDR-999 and SDDR-93, although other data card readers may work. A GTN Software Loader Card is created using GTN Downloadable Software and a data card with the GTN software application.

  • Page 23: Figure 3-4 System And Software Version

    7. Click Next. Figure 3-4 System and Software Version 8. Ensure that the correct drive is selected and click Next. Figure 3-5 GTN Software Loader Card Formatting 9. Click Next to acknowledge any warnings that appear. Figure 3-6 Update Progress Window 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev.

  • Page 24: Figure 3-7 Update Completion

    2. Insert the GTN Software Loader Card into the GTN 7XX data card slot. For instructions on how to create a GTN Software Loader Card, refer to Section 3.2.1. 3. Hold down the HOME key until “Garmin” is fully lit on the display after power is applied to the GTN 7XX.

  • Page 25: Gma 35 Boot Block Loading

    3.2.3 GMA 35 Boot Block Loading NOTE The GMA 35 Boot Block Loader Card is separate from the GMA 35 Software Loader Card and is required to update Boot Block software to v4.10. Refer to Section 3.2.1 for instructions on how to create the GTN Software Loader Card. 1.

  • Page 26: Gtn Configuration Mode Overview

    1. Remove power from the GTN. 2. Press and hold the HOME key and reapply power to the GTN. 3. Release the HOME key when the display activates and the name “Garmin” appears fully lit on the screen. The first page displayed is the Configuration Mode page. For detailed information regarding how to configure the GTN, refer to GTN 6XX/7XX Part 27 AML STC Installation Manual.

  • Page 27: Figure 3-9 Gtn 7Xx Updates Page

    3.3.1 GTN Software Updates NOTE The following steps need to be repeated for each GTN unit that requires a software update. Figure 3-9 GTN 7XX Updates Page To update the GTN software, perform the following steps: 1. Remove power from the GTN. 2.

  • Page 28: Figure 3-10 System Information Page

    3.3.2 System Information To view the System Information page, touch the System Information key on the Configuration Mode page. The System Information page displays the unit type, serial number, and system ID for the GTN. It also contains the software and hardware versions of the Main, I/O, Display, Keypad, LED, GPS/WAAS, COM, and NAV boards.

  • Page 29: Figure 3-11 Gtn 7Xx Gtn Setup Page

    3.3.3 GTN Setup Page A brief overview of the pages that are accessed from the GTN Setup page are described below. To access the GTN Setup page, touch the GTN Setup key from the Configuration Mode page. Figure 3-11 GTN 7XX GTN Setup Page ARINC 429 The ARINC 429 page allows the user to configure the ARINC 429 input and output ports on the GTN.
  • Page 30 Enhanced Lighting The Enhanced Lighting page replaces the Lighting page when enabled under the Main System configuration page. Enhanced lighting allows the user to set the display parameters that affect the backlight and key lighting brightness. Enhanced lighting may be used to configure separate day/night lighting curves.

  • Page 31: Figure 3-12 Gtn 7Xx Options Page

    3.3.4 GTN Options Page The GTN Options page leads to optional features that can be purchased and enabled. To access the GTN Options page, touch the GTN Options key on the Configuration Mode page. Figure 3-12 GTN 7XX Options Page 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev.

  • Page 32: Figure 3-13 Gtn 7Xx Terrain Configuration Page

    3.3.4.1 HTAWS Re-Enablement NOTE This manual only describes the necessary steps to re-enable the HTAWS feature for existing installations. For first-time HTAWS enablement, refer to GTN 6XX/7XX Part 27 AML STC Installation Manual. NOTE The feature enablement card should be provided to the customer after service to the GTN has been completed.

  • Page 33: Figure 3-14 Chart Configuration Page

    Alert Settings The GTN HTAWS alerting algorithm adapts the terrain alerting criteria based on nearby airports. The Airport Criteria configuration options allow the user to select the minimum criteria that the airport must meet to be considered as a nearby airport for the purpose of HTAWS alerting. 3.3.4.2 ChartView Re-Enablement (GTN 7XX Only) NOTE This manual only describes the necessary steps to re-enable the ChartView feature for...

  • Page 34: Figure 3-15 Com Transmit Power Configuration Page

    3.3.4.3 COM Transmit Power Re-Enablement (GTN 635/650/750 Only) NOTE This manual only describes the necessary steps to re-enable the 16W COM transmit power for existing installations. For first-time 16W COM transmit power enablement, refer to the GTN 6XX/7XX Part 27 AML STC IM. NOTE The 16W COM Transmit Feature Enablement Card should be provided to the customer after service to the GTN has been completed.

  • Page 35: Figure 3-16 Search And Rescue Configuration Page

    3.3.4.4 Search and Rescue Re-Enablement NOTE A Search and Rescue Enablement Card (P/N 010-00878-03) is needed for enablement. NOTE The Search and Rescue Feature Enablement Card should be provided to the customer after service to the GTN has been completed. The GTN 6XX/7XX Search and Rescue Enablement Card is only used on one GTN.

  • Page 36: Figure 3-17 Gtn 6Xx And 7Xx Diagnostics Pages

    3.3.5 GTN Diagnostics Page The GTN Diagnostics page, is accessed from the Configuration Mode home page and is a useful tool for diagnosing issues and troubleshooting problems. Ground checks are also performed using the tools on this page. Figure 3-17 GTN 6XX and 7XX Diagnostics Pages ARINC Inputs The ARINC Inputs page displays the ARINC 429 data being received over each ARINC 429 port.
  • Page 37 HSDB (Ethernet) The HSDB (Ethernet) page displays the status of each HSDB port to be displayed. It displays whether or not each port is receiving data and displays whether the port is connected or not connected. The communication status of each installed HSDB LRU is also displayed. Main Indicator (Analog) The Main Indicator (Analog) page displays the CDI connected to the main board (P1001) to be ground checked and allows the interface to be verified.

  • Page 38: Database Updates

    Database cards and the Flight Stream 510 should not be swapped between GTNs if multiple units are installed. GTN users can update their database card by purchasing database subscription updates from Garmin. Contact Garmin at (866) 739-5687 or go to flyGarmin.com...

  • Page 39: Troubleshooting

    4 TROUBLESHOOTING GTN General Troubleshooting .......................4-2 GTN Failure Annunciations ......................4-5 GTN System Messages ........................4-6 4.3.1 GTN System Related Alerts ....................4-6 Flight Stream 510 Troubleshooting ....................4-16 GMA 35 Troubleshooting ......................4-17 4.5.1 GMA 35 Failure Annunciations ....................4-17 4.5.2 GMA 35 Troubleshooting Guide ..................4-18 4.5.3 GMA 35 System Messages ....................4-19 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual...

  • Page 40: Gtn General Troubleshooting

    If any system fault persists after performing the associated troubleshooting actions, return the unit to Section 1.2. Garmin for service. Refer to Table 4-1 GTN Troubleshooting Guide Problem...
  • Page 41 Problem Possible Cause Corrective Action Incompatible OBS Resolver resolver or Check the resolver specifications and wiring. won’t calibrate. improper connection. GTN resolver input not OBS indication on calibrated GTN does not Check wiring and calibration. correctly. agree with OBS setting. Resolver has not been calibrated.
  • Page 42 Problem Possible Cause Corrective Action GTN RS-232 port Check RS-232 port setting for port which the device is not configured connected. correctly. Improper setup on the remote Verify the configuration of the other device. device. Device not compatible or Verify GTN RX is connected to remote device TX and GTN improper TX is connected to remote device RX.

  • Page 43: Gtn Failure Annunciations

    4.2 GTN Failure Annunciations If data fields become invalid, the GTN typically annunciates the failures with a large red “X”. Figure 4-1 Failure Screen 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page 4-5...

  • Page 44: Gtn System Messages

    4.3 GTN System Messages 4.3.1 GTN System Related Alerts Table 4-2 Alert Text Troubleshooting Guide Alert Text Possible Cause Corrective Action CDI/HSI FLAG - The main lateral or vertical Check the GTN main lateral and vertical superflag Main lateral/ superflag has been turned connections to the CDI/HSI for correct wiring, vertical flag on off due to an overcurrent...
  • Page 45 KEY STUCK - The bezel’s Direct-To key is Touch the Direct-To key again to cycle its Direct-to key is stuck in the enabled or operation. If the message persists, contact Garmin stuck. pressed state. Product Support. KNOB STUCK - The inner large knob push-...

  • Page 46: Table 4-3 Com Alert Troubleshooting Guide

    Verify the PTT switch wiring is correct. pressed state. If the message persists, contact Garmin Product Support. Go to the GTN Diagnostics - Discrete Inputs page in Configuration mode and check that the state of the input changes when the COM remote transfer switch is pressed...
  • Page 47 Press the COM remote frequency increment key to pressed state. cycle its operation. If the problem persists, contact Garmin Product Support. Press the COM remote frequency decrement key to cycle its operation. The COM Go to the GTN Diagnostics - Discrete Inputs page in...

  • Page 48: Table 4-4 Gps/Sbas Alert Troubleshooting Guide

    GPS/SBAS receiver. braid in the coaxial cable. failed. Check GPS GPS antenna cable may be coaxial for Contact Garmin Product Support for assistance. shorted to ground. electrical short. GPS RECEIVER - The GTN has detected an GPS receiver internal failure in the Contact Garmin Product Support.

  • Page 49: Table 4-5 Vloc/Gs Alert Troubleshooting Guide

    Verify the NAV remote transfer switch wiring is correct. If the problem persists, contact Garmin Product Support. 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page 4-11...

  • Page 50: Table 4-6 Remote Transponder Alert Troubleshooting Guide

    4.3.1.4 Remote Transponder Related Alerts Table 4-6 Remote Transponder Alert Troubleshooting Guide Alert Text Possible Cause Corrective Action TRANSPONDER The transponder is reporting 1 - Transponder 1 Refer to the transponder installation manual. a system failure. needs service. TRANSPONDER The transponder is reporting 2 - Transponder 2 Refer to the transponder installation manual.

  • Page 51: Table 4-7 Traffic Alert Troubleshooting Guide

    GDL 69. HSDB data from the GDL 69 can be routed to the GTN is lost. GTN through other Garmin LRUs. Ensure that all Garmin LRUs are powered-up. Check that the GTN is configured correctly with the GSR 56 Iridium transceiver.

  • Page 52: Table 4-9 Htaws Alert Troubleshooting Guide

    GTN. configuration is invalid due to a loss or invalid. GTN needs corrupted registry. If the problem persists, contact Garmin Product service. Support. Press the HTAWS Inhibit key to cycle its operation. Go to the GTN Diagnostics - Discrete Inputs...

  • Page 53: Table 4-10 Third-Party Sensor Alert Troubleshooting Guide

    4.3.1.8 Third-Party Sensors Related Alerts Table 4-10 Third-Party Sensor Alert Troubleshooting Guide Alert Text Possible Cause Corrective Action If the GTN is not expected to receive pressure altitude, ensure that ALTITUDE SOURCE INPUT is configured for Not Connected. Check RS-232 port setting for the port that the DATA SOURCE - The GTN is configured to device is connected.

  • Page 54: Flight Stream 510 Troubleshooting

    4.4 Flight Stream 510 Troubleshooting Table 4-11 Flight Stream 510 Troubleshooting Problem Possible Cause Corrective Action Trying to pair with device Access the Connext Bluetooth Pairing page by while not on the Bluetooth pressing Home > System > Connext Setup. Pairing page.

  • Page 55: Gma 35 Troubleshooting

    4.5 GMA 35 Troubleshooting 4.5.1 GMA 35 Failure Annunciations A typical failure indication of the GMA 35 audio panel is a red “X”. Figure 4-2 GMA 35 Failure Annunciation 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page 4-17...

  • Page 56: Table 4-12 Gma 35 Troubleshooting Guide

    4.5.2 GMA 35 Troubleshooting Guide If problems occur after completing maintenance, this section provides information to assist troubleshooting. Refer to the System Configuration and Checkout Log retained in the rotorcraft permanent records for a list of interfaced equipment and system configuration data. Table 4-12 GMA 35 Troubleshooting Guide Problem Possible Cause...

  • Page 57: Table 4-13 Remote Audio Panel Alert Troubleshooting Guide

    Alert Text Possible Cause Corrective Action AUDIO PANEL - Audio panel should be Audio panel Return audio panel to Garmin for service. serviced. needs service. Audio panel is not powered- Ensure the audio panel is receiving power and AUDIO PANEL - connected to ground.

  • Page 58: Equipment Removal And Replacement

    5 EQUIPMENT REMOVAL AND REPLACEMENT GTN ..............................5-2 5.1.1 Display of Self-Test Data ......................5-7 GMA 35 ............................5-8 Data Card/Flight Stream 510 ......................5-11 GPS/WAAS Antenna ........................5-11 NAV Antenna Cable Diplexer ......................5-12 NAV Antenna Cable Splitter ......................5-12 Configuration Module (P1001 Only) ....................5-13 GTN Cooling Fan ..........................5-14 This section describes how to remove and replace equipment associated with this STC.

  • Page 59: Gtn

    5.1 GTN Removal 1. Remove power from the GTN. Bell and MD Helicopter Models: To remove power, pull all GTN circuit breakers. Eurocopter Models: Power is removed for units located in the console by switching off the avionics master relay. For units located in the instrument panel, power is removed by switching off the GPS 1 or GPS/COM 1 switch.

  • Page 60: Figure 5-1 Gtn 7Xx Mounting Rack Assembly

    211-60234-08 SCREW, 4-40 x .25 (4X) 330-00053-01 BNC CONNECTOR 330-00053-02 BNC/TNC CONNECTOR 212-00022-00 SHOULDER WASHER 115-01294- 0 GTN 7XX MOUNTING RACK 330-00053-01 BNC CONNECTOR 253-00421-00 CHASSIS GASKET 125-00221-10 GTN 7XX BACKPLATE 371-00014-01 011-02326-0X 211-60234-23 CONNECTOR KIT SCREW, 4-40 x 1.375 (4X) Figure 5-1 GTN 7XX Mounting Rack Assembly Sheet 1 of 2 190-01007-B1...
  • Page 61 BACKPLATE KIT CONTENT DIFFERENCES UNIT DESCRIPTION UNIT AND CONNECTOR KIT BACKPLATE KIT MOUNTING RACK WASHER BNC CONNECTOR (EACH) (EACH) INSTALLATION KIT GTN 725 010-00819-50 011-02326-00 011-02246-00 115-01294-00 GTN 750, (HELO, BLACK) 010-00820-A0 011-02326-02 011-02246-02 115-01294-A0 212-00022-00 330-00053-02 GTN 750 (BLACK) 010-00820-50 011-02326-02 011-02246-02...

  • Page 62: Figure 5-2 Gtn 6Xx Mounting Rack Assembly

    211-60234-08 SCREW, 4-40 x .25 (4X) 330-00053-02 BNC/TNC CONNECTOR 330-00053-01 BNC CONNECTOR 212-00022-00 SHOULDER WASHER 115-01293- 0 GTN 6XX MOUNTING RACK 211-60234-23 SCREW, 4-40 x 1.375 (4X) 253-00421-00 CHASSIS GASKET 330-00053-01 BNC CONNECTOR 125-00220-10 GTN 6XX BACKPLATE 371-00014-01 011-02325-0X CONNECTOR KIT Figure 5-2 GTN 6XX Mounting Rack Assembly Sheet 1 of 2 190-01007-B1...
  • Page 63 BACKPLATE KIT CONTENT DIFFERENCES UNIT DESCRIPTION CONNECTOR KIT UNIT AND BACKPLATE KIT MOUNTING RACK WASHER BNC CONNECTOR (EACH) (EACH) INSTALLATION KIT 010-00811-50 011-02325-00 011-02245-00 115-01293-00 GTN 635 010-00812-50 011-02325-01 011-02245-01 115-01293-00 GTN 635 (HELO, BLACK) 115-01293-A0 010-00812-A0 011-02325-01 011-02245-01 011-02245-02 GTN 650 (BLACK) 010-00813-50 011-02325-02...

  • Page 64: Table 5-1 Self-Test Values

    5.1.1 Display of Self-Test Data Following normal power-up, the database pages are displayed, followed by the Instrument Panel Self-Test page. Touch Continue to display the Instrument Panel Self-Test page. During this time, the electrical outputs are activated and set to the values listed below. Touch Continue to acknowledge the Instrument Panel Self-Test page.

  • Page 65: Gma 35

    5.2 GMA 35 CAUTION Avoid overtightening the unit into the rack. The application of hex drive tool torque exceeding 15 in-lbf can damage the locking mechanism. Removal 1. Remove power from the audio panel. Bell and MD Helicopter Models: This is accomplished by pulling the audio panel circuit breaker. Eurocopter Models: Power is removed from the GMA by switching off the avionics master relay.

  • Page 66: Figure 5-3 Gma 35 Mounting Rack Assembly

    211-60234-08 SCREW, 4-40 X .250 115-01464-00 GMA 35 MOUNTING RACK 211-63234-11 SCREW, 4-40 X .437 125-00040-00 GMA 35 BACKPLATE 011-00950-02 BACKSHELL (2X) 011-01169-00 GROUND ADAPTER (4X) 330-00185-44 CONNECTOR (2X) 336-00021-00 PINS (A/R) PART OF 011-02300-00 BACKPLATE KIT. PART OF 011-02302-00 CONNECTOR KIT. PART OF 010-00831-01 INSTALLATION KIT.

  • Page 67: Figure 5-4 Gma 35C Mounting Rack Assembly Overview

    BLUETOOTH ANTENNA/CABLE KIT 325-00458-() 011-03909-00 700-00076-00 GMA35c ONLY 211-60234-08 GMA35 BACK PLATE KIT 4 PLACES 011-02300-00 125-00040-00 011-02299-() 115-01464-00 211-63234-11 4 PLACES 330-00185-44 GMA 35 CONNECTOR KIT 2 PLACES 011-02302-00 011-00950-02 2 PLACE 011-01169-00 Figure 5-4 GMA 35c Mounting Rack Assembly Overview 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev.

  • Page 68: Data Card/Flight Stream 510

    5.3 Data Card/Flight Stream 510 CAUTION Handle the data cards carefully. Do not touch the connector edge of the data card. NOTE A data card containing databases (including Flight Stream 510) is required for full system functionality and must be installed during operation. To replace the data card, complete the following steps: 1.

  • Page 69: Nav Antenna Cable Diplexer

    5.5 NAV Antenna Cable Diplexer Removal 1. Disconnect the coaxial connectors from diplexer, taking note of which coaxial connectors are connected to each port on the diplexer. 2. Remove the mounting screws and diplexer. Replacement 1. Replace the diplexer over the existing hole pattern and re-install fasteners. Torque fasteners within 22 to 25 in-lbf.

  • Page 70: Configuration Module (P1001 Only)

    Configuration modules are located within the GTN harness connector backshell. Refer to Figure 5-5. The configuration module kit listed in Table 5-3 is recommended for all replacements. Table 5-3 Configuration Module Kit P/N 011-00979-03 (P1001) Refer to Description Garmin P/N Figure 5-5 Configuration module, PCB board assembly w/EEPROM 011-02178-00 4-conductor harness...

  • Page 71: Gtn Cooling Fan

    5.8 GTN Cooling Fan CAUTION To avoid damage to the GTN, take precautions to prevent Electrostatic Discharge (ESD) when handling the GTN, connectors, fan, and associated wiring. ESD damage can be prevented by touching an object that is of the same electrical potential as the GTN before handling the GTN itself.

  • Page 72: Figure 5-7 Fan Wiring Installation

    Table 5-4 lists part numbers for the fan kit that is used with P1001 only. Table 5-4 Fan Kit Refer to Description Garmin P/N Figure 5-7 Fan cable assembly, 3-conductor harness 320-00600-00 Pin contact, crimp, #22D 336-00021-00 Silicone fusion tape...

  • Page 73: Return To Service

    Traffic or Weather System ......................6-23 6.8.1 Ryan TCAD Traffic System Interface Check ...............6-23 6.8.2 ARINC 429 Traffic System Interface Check ................6-23 6.8.3 TIS (Garmin GTX 33/330) Interface Check .................6-23 Fan Interface Check ........................6-24 6.10 Radar Altimeter Interface Check ....................6-24 6.11 Flight Stream 510 Interface Checks ....................6-24 6.11.1 Bluetooth Setup ........................6-24...
  • Page 74 6.12 Enabled Features ...........................6-25 6.13 HTerrain/HTAWS System Checks (For Units with HTerrain/HTAWS Only) ......6-26 This section provides return to service procedures to be followed after removal and replacement of equipment comprising part of or interfaced to the GTN 6XX/7XX. After conducting all of the required return to service procedures in accordance with this section, the craft may be returned to service.

  • Page 75: Maintenance Records

    6.1 Maintenance Records Record the following information in the appropriate rotorcraft maintenance logs: • Version number(s) of software loaded during maintenance • Part and serial numbers of any equipment replaced • Database updates performed during maintenance • Other relevant rotorcraft maintenance information 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev.

  • Page 76: Return To Service Procedures

    6.2 Return to Service Procedures 6.2.1 GTN 6XX/7XX Original GTN 6XX/7XX Re-Installed If the removed GTN is installed in its original position, no software loading or configuration setting changes are required. This does not include units that were returned for repair as their software and configuration files are deleted during the repair testing progress.

  • Page 77: Gma 35 (Gtn 725/750 Only)

    6.2.4 GMA 35 (GTN 725/750 Only) Original GMA 35 Re-Installed No return to service procedures are required. New, Repaired, or Exchanged GMA 35 Installed 1. Configure the GMA 35 in accordance with the configuration log kept with the rotorcraft permanent record. 2.

  • Page 78: Flight Stream 510

    6.2.10 Flight Stream 510 Original Flight Stream 510 Re-Installed No return to service procedures are required. New, Repaired, or Exchanged Flight Stream 510 Installed Update databases as necessary, as described in Section 3.4. 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev.

  • Page 79: Gtn Configuration And Testing

    6.3 GTN Configuration and Testing This section covers the configuration and checkout procedures that must be completed when a GTN is replaced with an equivalent unit. The steps provided in this section are only applicable for replacement of an equivalent GTN unit (i.e., 750 for 750, 625 for 625, etc.). If wiring updates are needed, or the configuration module is being replaced simultaneously, refer to GTN 6XX/7XX Part 27 AML STC Installation Manual for installation instructions.

  • Page 80: Signal Acquisition Check

    6.3.3 Signal Acquisition Check NOTE All other avionics should be turned off at the start of this test, with the GTN powered on in Normal mode. After replacement, the initial acquisition of position can take up to 20 minutes. Subsequent acquisitions will not take as long. NOTE For best results, this check should be performed outdoors away from large buildings or objects that could obstruct the GPS antenna.

  • Page 81: Table 6-1 Summary Of Com Rx Squelch Settings And Auto Squelch Levels

    COM receiver. In late 2013, Garmin changed the GTN COM radio factory calibration process to allow the level at which the auto squelch opens or closes to be set at a more sensitive level. The COM RX squelch range (0-100) was remapped, as shown in Table 6-1.

  • Page 82: Table 6-2 Com Carrier Squelch Selections

    Table 6-2 COM Carrier Squelch Selections Selection Description Basic Applies a COM carrier squelch value of 0 to 25 kHz and 8.33 kHz spacing. Advanced Allows the adjustment of COM carrier squelch values. Allows the adjustment of COM carrier squelch values for 25 kHz and 8.33 kHz Spacing spacing separately.

  • Page 83: Gma 35 Configuration And Testing

    6.4 GMA 35 Configuration and Testing The following steps must be performed when replacing a GMA 35 Audio Panel. 1. Load GMA 35 software. Refer to Section 3.2.2. 2. Configure audio panel. Refer to Section 6.4.1. 3. Perform ground check. Refer to Section 6.4.2. 6.4.1 GMA 35 Audio Panel Configuration (GTN 7XX Only) 1.

  • Page 84: Gma 35 Interface Check (Gtn 7Xx Only)

    6.4.2 GMA 35 Interface Check (GTN 7XX Only) 1. With the GTN running and the GMA 35 Audio Panel powered on, go to the home page and touch the Audio Panel key. 2. Ensure a red “X” is not displayed over the Audio Panel key. After configuring the audio panel, an in-rotorcraft checkout may be performed with a good microphone, headset, speaker, and avionics receivers.

  • Page 85: Failsafe Operation Check

    6.4.3 Failsafe Operation Check NOTE In the following procedural steps, allow for variation in the configuration settings for the particular installation under test. NOTE A true mono headset is required for the failsafe operation check. Do not use headsets with a mono/stereo switch.

  • Page 86: Nav Audio Check

    6.4.5 NAV Audio Check Ensure the GMA 35 and each installed NAV receiver is powered on. 1. Tune the NAV receiver to a local VOR station. 2. Ensure the Morse code identifier is being received over the crew headsets. 3. If the audio is not heard, verify the wiring to the audio panel. 4.

  • Page 87: Music System Check (If Installed)

    6.4.8 Music System Check (If Installed) 1. Set the intercom to the ALL mode. 2. Connect a stereo audio source to MUSIC 1 or MUSIC 2. Verify that stereo audio is heard over the pilot headset position. 3. Tune a station on COM 1. 4.

  • Page 88: Interfaced Equipment Configuration And Checkout

    6.5 Interfaced Equipment Configuration and Checkout This manual does not cover the removal and replacement of the following interfaced equipment. However, the following procedures are required to ensure proper functionality with the interfaced equipment. Perform the following calibration procedures and interface checks after replacing any of the optionally interfaced equipment.

  • Page 89: Navigation Indicator Configuration And Checkout

    6.6 Navigation Indicator Configuration and Checkout 1. Perform calibration per Section 6.6.2 (if using GPS) or Section 6.6 (GTN 650/750 only) if using VOR/LOC/GS receiver. 2. Perform ground checks per Section 6.3 and the appropriate interface check. 6.6.1 Main Indicator (Analog) Configuration Page Select the Main Indicator (Analog) Configuration page from the GTN Setup page.

  • Page 90: Figure 6-3 Vor/Loc/Gs Configuration Page

    6.6.2 VOR/LOC/GS Configuration Page (GTN 650/750 Only) Select the VOR/LOC/GS key on the GTN Setup page. This page allows you to verify the CDI outputs from the VOR/LOC/GS receiver as well as the OBS resolver input to the VOR receiver. It also allows you to select the format for the DME tuning data.

  • Page 91: Main Indicator Check (Analog Only)

    6.6.3 Main Indicator Check (Analog Only) NOTE If the GTN is interfaced to an electronic HSI/EFIS, and the main indicator analog output is not used, this check is not required. NOTE To verify if the indicator is interfaced with the GTN on the main connector (P1001), examine the response of the indicator during the GTN self-test upon power-up.

  • Page 92: Display

    6.6.5 Display Perform the interface check for the replaced EFIS. No additional configuration on the GTN is required when replacing a display with an equivalent unit. 6.6.5.1 EFIS Deviation Scaling for HSI/CDI Driven by GTN through ARINC 429 Data If the GTN has a serial connection to an EFIS display, proper scaling of the EFIS CDI and VDI must be verified.

  • Page 93: Transponder

    6.7 Transponder 1. For remote transponders, configure transponder as described Section 6.7.1. 2. Perform interface check as described Section 6.7.2. 6.7.1 Remote Transponder Configuration NOTE If the GTN controls any transponder (GTX 32/33/327/328/330), then that transponder will boot into the same mode (Normal or Configuration) as the GTN. NOTE If the GTN is not communicating with the GTX transponder, all of the editable fields for the setup items shown in the following sections will be dashed out.

  • Page 94: Transponder Interface Check

    6.7.2 Transponder Interface Check If the GTN is interfaced to a GTX 32/33 remote transponder, or a GTX 327/328/330 configured as a remote transponder, the following checks must be completed: 1. With the GTN unit running in Normal mode and the transponder powered on, go to the home page and ensure there is no red “X”...

  • Page 95: Traffic Or Weather System

    6.8.3 TIS (Garmin GTX 33/330) Interface Check If a Garmin GTX 33/330 transponder has been connected to the GTN as a TIS traffic source, the traffic interface should be verified as described in this section. 1. Select the Traffic Map from the GTN home page.

  • Page 96: Fan Interface Check

    6.11.2 Flight Stream to GTN Interface Check 1. On the Garmin Pilot application, go to the Flight Plan page and create a flight plan. 2. Select the Connext icon at the top of the page. 3. Select the option to send the flight plan to the GTN. If successful, a message will be available on the GTN.

  • Page 97: Enabled Features

    6.12 Enabled Features Refer to Section 3.3.4 for guidance on enabling features. 190-01007-B1 GTN 6XX/7XX Part 27 AML STC Maintenance Manual Rev. 4 Page 6-25...

  • Page 98: Figure 6-5 Audio Configuration Page

    6.13 HTerrain/HTAWS System Checks (For Units with HTerrain/HTAWS Only) Re-configure HTerrain/HTAWS settings per the Configuration Checkout Log. The Terrain Configuration settings are located under the GTN Options menu. Figure 6-5 Audio Configuration Page Figure 6-6 Terrain Configuration Page NOTE If no audio message is heard, then a fault exists within the audio system or associated wiring, and the HTerrain/HTAWS capability must be considered non-functional.
  • Page 99 APPENDIX A AIRCRAFT-SPECIFIC INFORMATION electronic fillable form is available on the Dealer Resource Center website. Acrobat Reader 8.0 or later is necessary to view and fill out the form. You can download Acrobat Reader by visiting www.adobe.com. When updating software, it is necessary to fill out a new Configuration Log. The Current Revision Description in the beginning of this manual identifies all pages with changes.
  • Page 100 GENERAL INFORMATION Date: AIRCRAFT: AIRCRAFT MAKE: AIRCRAFT MODEL: AIRCRAFT SERIAL #: AIRCRAFT REG. #: GTN Xi #1: Mod Level: Unit P/N: Serial #: Unit Model: GPS Antenna P/N #: GPS Antenna Model: GTN Xi #2:  [N/A] Mod Level: Unit P/N: Unit Model: Serial #: GPS Antenna P/N #:...
  • Page 101 GTN PART 27 CONFIGURATION LOG – GTN #1 SYSTEM INFORMATION GTN Xi SOFTWARE VERSIONS Main Board Software: Boot Code: FPGA: Touch Controller Board Software: Boot Code: GPS/WAAS Board Software: NAV Board  [N/A] Software: Boot Code: FPGA: COM Board  [N/A] Software: Boot Code: FPGA:...
  • Page 102 GTN PART 27 CONFIGURATION LOG – GTN #1 - CONTINUED GTN SETUP MENU - CONTINUED HSDB (ETHERNET) CONFIGURATION Port 1:  Connected  Not Connected Port 3:  Connected  Not Connected Port 2:  Connected  Not Connected Port 4:  Connected ...
  • Page 103 GTN PART 27 CONFIGURATION LOG – GTN #1 - CONTINUED GTN SETUP MENU - CONTINUED ENHANCED LIGHTING CONFIGURATION (IF ENABLED ON MAIN SYSTEM CONFIGURATION PAGE) ENHANCED LIGHTING: [N/A] SOURCE SETTINGS Display Source:  Photocell  Lighting Bus 1 Keys Source:  Photocell  Lighting Bus 1  Lighting Bus 2 Photocell: Response Time: Lighting Bus 1: ...
  • Page 104 GTN PART 27 CONFIGURATION LOG – GTN #1 - CONTINUED GTN SETUP MENU - CONTINUED AUDIO CONFIGURATION Alert Volume Level: VOICE COMMAND CONFIGURATION Voice Commands: “Say…” Commands:  Off On Mute Tone: Off   Off On (Not approved per this STC) TRAFFIC CONFIGURATION Traffic Intruder Symbol Color: ...
  • Page 105 GTN PART 27 CONFIGURATION LOG – GTN #1 - CONTINUED GTN SETUP MENU - CONTINUED ARINC 453/708 CONFIGURATION Device: Port 1: External Weather Radar:  Off  On DISCRETES CONFIGURATION J1001-16: J1001-52: VLOC Annunciate J1001-36: J1001-53: J1001-37: J1001-54: J1001-38: J1001-55: J1001-39: J1001-56: ILS/GPS Approach Annunciate J1002-01: Demo Mode Select...
  • Page 106 GTN PART 27 CONFIGURATION LOG – GTN #1 - CONTINUED GTN OPTIONS MENU TERRAIN CONFIGURATION Terrain Mode:  HTerrain Proximity  HTerrain Alerting  HTAWS Terrain Alert Settings Runway Surface:  Any  Hard Only  Hard/Soft  Water Minimum Runway Length: Alert Voice: ...
  • Page 107 GTN PART 27 CONFIGURATION LOG – GTN #1 – CONTINUED NOTES GTN 6XX/7XX Part 27 AML STC Maintenance Manual 190-01007-B1 Page A-9 Rev. 4...
  • Page 108 GTN PART 27 CONFIGURATION LOG – GTN #2 SYSTEM INFORMATION GTN Xi SOFTWARE VERSIONS Main Board Software: Boot Code: FPGA: Touch Controller Board Software: Boot Code: GPS/WAAS Board Software: NAV Board  [N/A] Software: Boot Code: FPGA: COM Board  [N/A] Software: Boot Code: FPGA:...
  • Page 109 GTN PART 27 CONFIGURATION LOG – GTN #2 - CONTINUED GTN SETUP MENU - CONTINUED HSDB (ETHERNET) CONFIGURATION Port 1:  Connected  Not Connected Port 3:  Connected  Not Connected Port 2:  Connected  Not Connected Port 4:  Connected ...
  • Page 110 GTN PART 27 CONFIGURATION LOG – GTN #2 - CONTINUED GTN SETUP MENU - CONTINUED ENHANCED LIGHTING CONFIGURATION (IF ENABLED ON MAIN SYSTEM CONFIGURATION PAGE) ENHANCED LIGHTING: [N/A] SOURCE SETTINGS Display Source:  Photocell  Lighting Bus 1 Keys Source:  Photocell  Lighting Bus 1  Lighting Bus 2 Photocell: Response Time: Lighting Bus 1: ...
  • Page 111 GTN PART 27 CONFIGURATION LOG – GTN #2 - CONTINUED GTN SETUP MENU - CONTINUED AUDIO CONFIGURATION Alert Volume Level: VOICE COMMAND CONFIGURATION Voice Commands: “Say…” Commands:  Off On Mute Tone: Off   Off On (Not approved per this STC) TRAFFIC CONFIGURATION Traffic Intruder Symbol Color: ...
  • Page 112 GTN PART 27 CONFIGURATION LOG – GTN #2 - CONTINUED GTN SETUP MENU - CONTINUED ARINC 453/708 CONFIGURATION Device: Port 1: External Weather Radar:  Off  On DISCRETES CONFIGURATION J1001-16: J1001-52: VLOC Annunciate J1001-36: J1001-53: J1001-37: J1001-54: J1001-38: J1001-55: J1001-39: J1001-56: ILS/GPS Approach Annunciate J1002-01: Demo Mode Select...
  • Page 113 GTN PART 27 CONFIGURATION LOG – GTN #2 - CONTINUED GTN OPTIONS MENU TERRAIN CONFIGURATION Terrain Mode:  HTerrain Proximity  HTerrain Alerting  H TAWS Terrain Alert Settings Runway Surface:  Any  Hard Only  Hard/Soft  Water Minimum Runway Length: Alert Voice: ...
  • Page 114 GTN PART 27 CONFIGURATION LOG – GTN #2 – CONTINUED NOTES GTN 6XX/7XX Part 27 AML STC Maintenance Manual 190-01007-B1 Page A-16 Rev. 4...
  • Page 115 GTN PART 27 CONFIGURATION LOG GMA 35 AUDIO PANEL CONFIGURATION  [N/A] Software Version: AUDIO PANEL CONFIGURATION INTERCOM Mute PASS to CREW intercom during alerts  True  False Mute PASS to CREW intercom during selected audio  True  False ...
  • Page 116 GTN PART 27 CONFIGURATION LOG GMA 35 AUDIO PANEL CONFIGURATION – CONTINUED AUDIO PANEL DISCRETES J3501-16: J3502-14: J3502-30: AUDIO PANEL CONNECTED RADIOS COM 2:  Present  Not Present COM 3:  Present  Not Present NAV 1:  Present ...
  • Page 117 Wire Routing Medium Body The following diagram depicts approximate location of all LRUs and antenna(s) along with the wire routing for the GTN and GMA 35 throughout the aircraft structure for a medium body rotorcraft. GTN 6XX/7XX Part 27 AML STC Maintenance Manual 190-01007-B1 Page A-19 Rev.
  • Page 118 Small Body The following diagram depicts approximate location of all LRUs and antenna(s) along with the wire routing for the GTN and GMA 35 throughout the aircraft structure for a small body rotorcraft. GTN 6XX/7XX Part 27 AML STC Maintenance Manual 190-01007-B1 Page A-20 Rev.
  • Page 119 Aircraft Wiring Diagrams Attach the aircraft wiring diagrams showing the equipment installed by this STC or a markup of the interconnect diagrams from the STC installation manual detailing which equipment was installed and how it was connected. NOTE Electrical loads for equipment installed by this STC are listed in GTN 6XX/7XX Part 27 AML STC Installation Manual.
  • Page 120 Equipment Interfaced to the GTN The purpose of the GTN Interfaced Equipment Lists (GTN #1 and GTN #2 (if applicable)) is to document the equipment that is interfaced to the GTN. Use the following guidance when filling out these tables: ...
  • Page 121 GTN #1 Interfaced Equipment List Equipment Type COM Antenna NAV Antenna Installed: Yes No Installed: Yes No AUDIO PANEL Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes No AIR DATA COMPUTER(S) Installed: Yes No Model(s):...
  • Page 122 GTN #1 Interfaced Equipment List - CONTINUED GSR 56 Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes No GDL 88H Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual? ...
  • Page 123 GTN #1 Interfaced Equipment List - CONTINUED TRAFFIC SOURCE Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes No HTAWS (EXTERNAL TO GTN) Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable):...
  • Page 124 GTN #1 Interfaced Equipment List - CONTINUED SYNCHRO HEADING SOURCE Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): : GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes No If a second GTN is not installed in the aircraft, check this box and do not fill out the following table. ...
  • Page 125 GTN #2 Interfaced Equipment Equipment Type COM Antenna NAV Antenna Installed: Yes No Installed: Yes No AUDIO PANEL Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes  No AIR DATA COMPUTER(S) Installed: Yes No Model(s):...
  • Page 126 GTN #2 Interfaced Equipment - CONTINUED GSR 56 Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): : GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes No GDL 88H Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): : GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual? ...
  • Page 127 GTN #2 Interfaced Equipment - CONTINUED TRAFFIC SOURCE Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes No HTAWS (EXTERNAL TO GTN) Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual? ...
  • Page 128 GTN #2 Interfaced Equipment - CONTINUED SYNCHRO HEADING SOURCE Installed: Yes No Model(s): Interface(s) (Analog, RS-232, ARINC 429, etc.): GTN Port Number(s) (if applicable): Covered by GTN STC Installation Manual?  Yes No GTN 6XX/7XX Part 27 AML STC Maintenance Manual 190-01007-B1 Page A-30 Rev.
  • Page 129 Equipment Interfaced to the GMA 35 The purpose of the GMA 35 Interfaced Equipment List is to document the equipment that is interfaced to the GTN. Use the following guidance when filling out these tables:  Installed?: Check “Yes” if the equipment is installed in the aircraft and interfaced to the GTN. If the equipment is not installed in the aircraft, check “No.”...

This manual is also suitable for:

Gtn 7 seriesGtn 625Gtn 635Gtn 650Gtn 725Gtn 750

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