Garmin GDL 69 User manual

GDL 69/69A XM Satellite Radio
Instructions for Continued Airworthiness
Garmin Ltd. Or its subsidiaries
c/o Garmin International, Inc.
1200 E. 151st Street
Olathe, Kansas 66062 USA
Dwg. Number:
190-00355-00 Rev. E
Rev. Date Description of Change
A 12/20/04 Production Release
B 6/30/06 Changed referenced documents revisions, incorporated FAA comments
C 01/25/08 Add information for GRT10 and GRC10
D 07-20-09
Update referenced documents revision in Section 2.1, added STC
number in Section 1.1
E 05/09/11
Update referenced documents (2.1). Add periodic bonding test (2.5.2,
2.12). Add GRC 10 battery service (2.4). Clarify ODA role (2.15).
Confidential
This drawing and the specifications contained herein are
the property of Garmin Ltd. or its subsidiaries and may not
be reproduced or used in whole or in part as the basis for
manufacture or sale of products without written permission.

GDL 69/69A XM Satellite Radio 190-00355-00 Rev.E
Instructions for Continued Airworthiness Page 2 of 8
1.INTRODUCTION...................................................................................................................3
1.1PURPOSE ............................................................................................................3
1.2Scope....................................................................................................................3
1.3Document Control.................................................................................................3
1.4Airworthiness Limitations Section.........................................................................3
1.5Permission to Use Certain Documents.................................................................3
1.6Definitions.............................................................................................................3
2.INSTRUCTIONS FOR CONTINUED AIRWORTHINESS ....................................................4
2.1Introduction...........................................................................................................4
2.2Description of Alteration........................................................................................4
2.3Control, Operating Information .............................................................................4
2.4Servicing Information............................................................................................5
2.5Periodic Maintenance Instructions........................................................................6
2.6Troubleshooting Information.................................................................................7
2.7Removal and Replacement Information...............................................................7
2.8Diagrams...............................................................................................................7
2.9Special Inspection Requirements.........................................................................7
2.10Application of Protective Treatments....................................................................7
2.11Data Relative to Structural Fasteners...................................................................7
2.12Special Tools ........................................................................................................8
2.13Additional Instructions...........................................................................................8
2.14Overhaul Period....................................................................................................8
2.15ICA Revision and Distribution...............................................................................8
2.16Assistance.............................................................................................................8
2.17Implementation and Record Keeping...................................................................8

GDL 69/69A XM Satellite Radio 190-00355-00 Rev.E
Instructions for Continued Airworthiness Page 3 of 8
1. INTRODUCTION
1.1PURPOSE
This document is designed for use by the installing agency of the GDL 69/69A XM Radio Data Link and
optional GRT 10/GRC 10 Wireless Remote System as Instructions for Continued Airworthiness in
response to Federal Aviation regulation (FAR) Part 23.1529, and Part 23 Appendix G. They include
information required by the operator to adequately maintain the GDL 69/69A installed under Approved
Model List (AML) STC SA01487SE-D.
1.2Scope
This document identifies the Instruction for Continued Airworthiness for the modification of the aircraft for
installation of the Garmin GDL 69/69A XM Satellite Radio and optional GRT 10/GRC 10 Wireless
Remote System. It applies to aircraft altered by this installation.
1.3Document Control
This document shall be released, archived, and controlled in accordance with Garmin document control
system. When this document is revised, refer to Section 2.15 for information on how to gain FAA
acceptance or approval and how to notify customers of changes.
1.4Airworthiness Limitations Section
There are no additional Airworthiness Limitations as defined in 14 CFR § 23, Appendix G. G23.4 that
result from this modification. The Airworthiness Limitations section is FAA approved and specifies
maintenance required under §§43.16 and 91.403 of the Federal Aviation Regulations unless an
alternative program has been FAA approved.
1.5Permission to Use Certain Documents
Permission is granted to any corporation or person applying for approval of a Garmin GDL 69/69A to use
and reference appropriate STC documents to accomplish the Instructions for Continued Airworthiness
and show compliance with STC engineering data. This permission does not construe suitability of the
documents. It is the responsibility of the applicant to determine the suitability of the documents for the
ICA.
1.6Definitions
The following terminology is used within this document:
1) AC: Advisory Circular
2) ACO: Aircraft Certification Office
3) AEG: Aircraft Evaluation Group
4) CFR: Code of Federal Regulations
5) DER: Designated Engineering Representative
6) FAA: Federal Aviation Administration

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Instructions for Continued Airworthiness Page 4 of 8
7) IAW: In Accordance With
8) ICA: Instructions for Continued Airworthiness
9) MFD: Multi-Function Display unit
10) PMI: Primary Manufacturing Inspector
11) POI: Primary Operations Inspector
12) STC: Supplemental Type Certificate
13) TC: Type Certification or Type Certificate
14) TSO: Technical Standard Order
2. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS
2.1 Introduction
Content, Scope, Purpose and Arrangement: This document identifies the Instruction for
Continued Airworthiness for the modification of the
aircraft by installation of the Garmin GDL 69/69A
remote XM Satellite Radio and optional GRT
10/GRC 10 Wireless Remote System.
Applicability: Applies to aircraft altered by installation of the
Garmin GDL 69/69A XM Satellite Radio and
optional GRT 10/GRC 10 Wireless Remote
System.
Definition of Abbreviations: See Section 1.6
Precautions: None
Units of measurement: None
Referenced publications:
(or later revisions) 190-00355-02 Rev. K GDL 69/69A XM Satellite Radio Installation Manual
Retention: This document, or the information contained within,
will be retained in the aircraft’s permanent records.
2.2Description of Alteration
The Garmin GDL 69/69A and optional GRT 10 Wireless Transceiver are installed in the aircraft as
remote-mount units. Pilot control of the GDL 69/69A is through the interfaced control and display unit,
such as a Garmin GMX 200 or other approved unit, for display and control of the weather data. The GDL
69A is also interfaced to the pilot through an audio panel, such as a Garmin GMA 347 for control of the
audio. The GDL 69A is also interfaced to the passengers through the GRC 10 Wireless Controller for
controlling audio features of the GDL 69A.
2.3Control, Operating Information
The GDL 69/69A does not have a direct pilot interface. The GDL 69/69A is controlled via separately
installed device, such as the Garmin GMX 200 multi-function display. The GDL 69A audio features can

GDL 69/69A XM Satellite Radio 190-00355-00 Rev.E
Instructions for Continued Airworthiness Page 5 of 8
be controlled by the optional GRC 10 Wireless Remote Controller. An GRT 10 Wireless Transceiver
must be installed and connected to the GDL 69A, and the GRC 10 wireless remote must be configured
to recognize the installed GRT 10 transceiver for the GRC 10 wireless remote to function.
To validate the operation of the GDL 69/69A, monitor the multi-function display weather depiction page
and look for display of weather data. Depiction of weather data should begin within 10 minutes.
To validate the operation of the optional GRT 10/GRC 10 Remote System, use the GRC 10 to change
XM Radio channel or volume and monitor the GRC 10 display or audio from the audio panel.
2.4Servicing Information
GRC 10 Remote Control Battery Replacement
If the unit does not turn on, or the battery level indicator on the display shows no bars, replace the
batteries. To replace the batteries in the GRC 10 Remote Control, remove the back cover of the remote.
Insert fresh batteries with the orientation as shown in the diagram in the battery compartment. Both
batteries should be replaced with fresh batteries at the same time.
Figure 2-1. Diagram in Battery Compartment
WARNING
Do not use lithium batteries in the GRC 10.
CAUTION
When replacing batteries, use only new or fully charged batteries. Do not mix new and
old batteries as this can cause battery leakage and damage to the unit. Do not mix battery
types (i.e. rechargeable with non-rechargeable).
CAUTION
Remove batteries if the GRC 10 will not be in use for several months. Storing batteries
in the unit for prolonged periods may result in leakage and damage to the battery
compartment.
NOTE
Remove batteries when the GRC 10 is stored for extended periods.

GDL 69/69A XM Satellite Radio 190-00355-00 Rev.E
Instructions for Continued Airworthiness Page 6 of 8
NOTE
Failure of the GRC 10 (i.e. dead batteries) has no impact on normal aircraft operations
and is only used for passengers to control audio entertainment.
2.5Periodic Maintenance Instructions
2.5.1 Annual Inspection
Operation of the GDL 69/69A and GRT 10 / GRC 10 is not permitted unless an inspection as described
in this section has been completed within the preceding 12 calendar months. Conduct a visual inspection
on the unit and its wire harness to insure continued installation integrity:
1. Inspect the unit for security of attachment.
2. Inspect the condition of wiring, routing, and attachment/clamping.
3. Verify the GDL 69/69A unit operation by viewing XM Satellite information on the control display
unit, or by checking the XM information or XM Status page on the control display unit. If GRT 10
and GRC 10 are installed, verify GRT 10 and GRC 10 operation by viewing XM radio channel
information on the GRC 10 display.
In addition, GDL 69A installations which use audio suppression inputs, verify each audio suppression
input for proper operation by the following step.
4. Verify the GDL 69A audio to the crew headphones is muted when each warning alarm is
activated. The stall warning may be activated by raising the stall vane on the leading edge of the
wing. The gear warning horn may be simulated by providing power or ground, as appropriate,
directly to the horn; provided the horn has been tested for proper operation when a gear
retraction test was performed.
2.5.2 Electrical Bonding Test
GDL 69 system electrical bonding must be tested every 2000 flight hours or ten (10) years, whichever is
first. If measured resistance is greater than Required Bonding in the following table, bonding must be
improved to meet applicable requirements for a new installation in accordance with the GDL 69/69A
Installation Manual Reference sections listed. LRUs must be disconnected from interfaced cables during
the measurements as detailed below. Reconnect LRUs after measurements and any required bonding
improvements are completed.
LRU Required Bonding Installation Manual Reference
GDL 69 10 milliohm 2.4.2
XM antenna 10 milliohm 2.6.2
The GDL 69 measurement is made with connectors disconnected from the GDL 69. To accomplish this,
the backplate assembly with attached connectors can be removed from the GDL 69 mounting rack. The
bonding resistance is measured from the rack to airframe ground.
During the XM antenna measurement, any coax normally attached to the antenna must be disconnected.
Antenna bonding is measured from the XM connector (TNC external ground) on the antenna to a nearby
exposed portion of conductive aircraft structure (example: exposed rivet on fuselage stringer) or to the
ground plane for the antenna (such as the metallic ground plane added for non-metallic aircraft).

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Instructions for Continued Airworthiness Page 7 of 8
2.6Troubleshooting Information
If XM satellite information is not available on control display unit, consult the Troubleshooting section
contained in the GDL 69/69A Installation Manual, listed under reference documentation in paragraph 2.1
of this document.
2.7Removal and Replacement Information
The mounting location of the GDL 69/69A and GRT 10 may vary between aircraft listed on the STC
Approved Model List. As depicted in the installation manual, some of the preferred locations are in the
forward electronics bay, the aft avionics shelf, or mounted beneath the seat.
If the GDL 69/69A unit is removed and reinstalled, verify that the GDL 69/69A the unit operation by
viewing XM Satellite information on the control display unit, or by checking the XM Information or XM
Status page on the control display unit. If the GDL 69/69A unit is removed for repair and reinstalled, or if
the GDL 69/69A unit is removed and replaced with a different GDL 69/69A unit, the GDL 69/69A XM
radio service may require re-activation. Follow instructions in the Installation Manual (listed under
reference documentation in section 2.1 of this document) “Activation with XM Satellite Radio”.
If the GRT 10 or GRC 10 is replaced, the GRC 10 Remote Controller must be configured to recognize
the GRT 10 Transceiver. Refer to the GDL 69/69A Installation Manual for instructions.
If any work has been done on the aircraft that could affect the system wiring, antenna cable, or any
interconnected equipment, verify the GDL 69/69A unit operation by viewing XM Satellite information on
the control display unit, or by checking the XM Information or XM Status page on the control display unit.
Verify the GRT 10 and GRC 10 unit operation by viewing XM radio channel information on the GRC 10
display.
If any new aircraft navigation or communication system is installed (GPS, Nav or Comm radio for
example,) or a change is made to the existing configuration (e.g. antenna changed or moved,) in the
aircraft after the GRC 10/GRT 10 has been installed, conduct the GRC 10/GRT 10 Post Install Checkout
Procedure verification as described in the GDL 69/69A Installation Manual, Section 4.7.
Note: There are no special handling requirements for the GDL 69/69A.
2.8Diagrams
Refer to the GDL 69/69A Installation Manual (listed under reference documentation in section 2.1 of this
document) for drawings applicable to this installation. Wiring diagrams are in Appendix D of the
GDL 69/69A Installation Manual.
2.9Special Inspection Requirements
None.
2.10 Application of Protective Treatments
None.
2.11 Data Relative to Structural Fasteners
None.

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Instructions for Continued Airworthiness Page 8 of 8
2.12 Special Tools
For electrical bonding testing, a milli-ohm meter is required.
No special tools are required for system checkout. See GDL 69/69A Installation Manual.
2.13 Additional Instructions
None.
2.14 Overhaul Period
The system does not require overhaul at a specific time period. Non operation of the unit may indicate
failure of the unit and the unit may require replacement. See troubleshooting section contained in the
GDL 69/69A Installation Manual, listed under reference documentation in paragraph 2.1 of this
document.
2.15 ICA Revision and Distribution
To revise this ICA, a letter must be submitted to the ACO or ODA along with the revised ICA. The ACO
or ODA will obtain AEG acceptance, and approve any revision to the Airworthiness Limitations in Section
1.4. After FAA acceptance/approval, Garmin will release the revised ICA for customer use, and provide
any required notification of the revision.
The latest revision of this document will be available on the Garmin website (www.garmin.com). A
Garmin Service Bulletin, describing ICA revision, will be sent to dealers if revision is determined to be
significant.
2.16 Assistance
Flight Standards Inspectors or the certificate holder’s PMI have the required resources to respond to
questions regarding this ICA. In addition, the customer may refer questions regarding this equipment and
its installation to the manufacturer, Garmin International. Garmin International customer assistance may
be contacted during normal business hours via telephone [phone] or email from the Garmin web
site at garmin.com.
2.17 Implementation and Record Keeping
Modification of an aircraft by this Supplemental Type Certificate obligates the aircraft operator to include
the maintenance information provided by this document in the operator’s aircraft maintenance manual
and/or the operator’s aircraft scheduled maintenance program.