Garmin | GDL® 82 | Garmin GDL® 82 Instructions for Continued Airworthiness & Maintenance Manual, GDL 82 Mooney M20() Series STC

Garmin GDL® 82 Instructions for Continued Airworthiness & Maintenance Manual, GDL 82 Mooney M20() Series STC
Instructions for Continued Airworthiness
& Maintenance Manual,
GDL 82 Mooney M20( ) Series STC
Aircraft make, model, registration number, and serial
number and accompanying STC configuration
information in Appendix A must be completed and
retained with aircraft permanent records.
190-01810-11
December 2017
Revision 1
©2017 Garmin International or its subsidiaries
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Telephone: (913) 397-8200
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ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page i
RECORD OF REVISIONS
Revision
1
Revision Date
Description
12/14/2017
Initial Release
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page ii
INFORMATION SUBJECT TO EXPORT CONTROL LAWS
This document may contain information which is subject to the Export Administration Regulations (“EAR”)
issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C) and which may not
be exported, released, or disclosed to foreign nationals inside or outside of the United States without first
obtaining an export license. A violation of the EAR may be subject to a penalty of up to 10 years imprisonment
and a fine of up to $1,000,000 under Section 2410 of the Export Administration Act of 1979. Include this notice
with any reproduced portion of this document.
DEFINITIONS OF WARNINGS, CAUTIONS, AND NOTES
WARNING
Warnings indicates that personal injury or death is possible if the instructions are not
obeyed.
CAUTION
Cautions are used to alert that damage to equipment may result if the procedural step is
not followed.
NOTE
Notes provide further information about preceding steps and/or reasons for the
particular operation.
WARNING
This product, its packaging, and its components contain chemicals known to the State of California to
cause cancer, birth defects, or reproductive harm. This notice is being provided in accordance with
California's Proposition 65. If you have any questions or would like additional information, please refer
to our web site at www.garmin.com/prop65.
NOTE
All screen shots used in this document are current at the time of publication. Screen shots are intended to
provide visual reference only. All information depicted in screen shots, including software file names,
versions, and part numbers, is subject to change and may not be up to date.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page iii
TABLE OF CONTENTS
SECTION ........................................................................................................................................... PAGE
1 INTRODUCTION ................................................................................................................................... 1
1.1 Introduction ...................................................................................................................................... 1
1.2 Organization..................................................................................................................................... 1
1.3 Acronyms and Abbreviations .......................................................................................................... 1
1.4 Publications ...................................................................................................................................... 2
1.5 Revision and Distribution ................................................................................................................ 2
2 SYSTEM DESCRIPTION....................................................................................................................... 3
3 CONTROL & OPERATION ................................................................................................................... 4
3.1 GDL 82 Install Tool ......................................................................................................................... 4
4 INSTRUCTIONS FOR CONTINUED AIRWORTHINESS .................................................................. 8
4.1 Airworthiness Limitations ............................................................................................................... 8
4.2 Servicing Information ...................................................................................................................... 8
4.3 Maintenance Intervals ...................................................................................................................... 9
4.4 Visual Inspection ........................................................................................................................... 10
4.5 Electrical Bonding Test.................................................................................................................. 11
5 TROUBLESHOOTING ........................................................................................................................ 12
5.1 General ........................................................................................................................................... 12
5.2 ADS-B OUT FAIL Annunciator ................................................................................................... 14
5.3 GDL 82 Install Tool ....................................................................................................................... 14
5.4 GDL 82 Data Logging ................................................................................................................... 16
5.5 GDL 82 Connector Pinout ............................................................................................................. 17
6 EQUIPMENT REMOVAL & INSTALLATION ................................................................................. 18
6.1 GDL 82 Unit .................................................................................................................................. 18
6.2 Annunciator and Switch................................................................................................................. 18
6.3 GPS Antenna.................................................................................................................................. 19
6.4 Transponder Antenna ..................................................................................................................... 19
7 EQUIPMENT CONFIGURATION & CHECKOUT ............................................................................ 20
7.1 System Checkout ........................................................................................................................... 20
7.2 GDL 82 Configuration ................................................................................................................... 20
7.3 GDL 82 Post-Installation Test Procedures..................................................................................... 21
8 RETURN TO SERVICE PROCEDURE ............................................................................................... 21
8.1 Maintenance Records ..................................................................................................................... 21
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page iv
FIGURES
FIGURE
PAGE
Figure 2-1: GDL 82 System I/O Interfaces ...................................................................................... 3
Figure 3-1: USB A and USB B Connectors ..................................................................................... 4
Figure 3-2: GDL 8X Install Tool Selection ..................................................................................... 4
Figure 3-3: GDL 82 Unit Information Page..................................................................................... 5
Figure 3-4: GDL 82 Software Upload Page..................................................................................... 6
Figure 3-5: GDL 82 System Configuration Page ............................................................................. 7
Figure 5-1: GDL 82 Install Tool, Faults Page ............................................................................... 15
Figure 5-2: GDL 82 Install Tool, GPS Page .................................................................................. 15
Figure 5-3: GDL 82 Install Tool, GPS Sat Status Page ................................................................. 16
Figure 5-4: GDL 82 Install Tool, Assert Log Page ........................................................................ 16
Figure 5-5: Rear View, Connector J821 ........................................................................................ 17
TABLES
TABLE
PAGE
Table 1-1: Recommended Documents ............................................................................................ 2
Table 4-1: Maintenance Intervals .................................................................................................... 9
Table 5-1: General Troubleshooting Guide ................................................................................... 12
Table 5-2: System Faults Troubleshooting Guide ......................................................................... 13
Table 5-3: J821 Pinout ................................................................................................................... 17
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page v
1
INTRODUCTION
1.1
Introduction
This document provides Instructions for Continued Airworthiness (ICA) and Maintenance Manual
(MM) for the Garmin GDL 82 UAT Transmitter as installed in Mooney M20() Series aircraft under STC
SA02573SE. This document satisfies the requirements for continued airworthiness as defined by 14
CFR Part 23.1529 and Appendix G. Information in this document is required to maintain the continued
airworthiness of the GDL 82.
1.2
Organization
The following outline briefly describes the organization of this manual:
Section 2: System Description
Provides a complete description of the type design change associated with installing the GDL 82. An
overview of the system interface is also provided.
Section 3: Control & Operation
Presents basic control and operation information related to maintenance of the GDL 82.
Section 4: Instructions for Continued Airworthiness
Provides maintenance instructions for continued airworthiness of the GDL 82.
Section 5: Troubleshooting
Provides troubleshooting information to aid in diagnosing and resolving potential problems with the
GDL 82.
Section 6: Equipment Removal & Installation
Contains instructions for the removal and installation of the GDL 82.
Section 7: Equipment Configuration & Checkout
Contains instructions for configuring and testing the GDL 82 after reinstallation or replacement.
Section 8: Return to Service Procedure
Specifies return-to-service procedures required after completion of the GDL 82 maintenance.
Appendix A: Installation Specific Information
Provides a template to record general installation information and the system configuration log for a
specific installation of the GDL 82.
1.3
Acronyms and Abbreviations
The following acronyms are used in this manual:
AC
Advisory Circular
Automatic Dependent Surveillance –
ADS-B Broadcast
Airplane Flight Manual
AFM
AFMS Airplane Flight Manual Supplement
Altitude
ALT
Air Traffic Control
ATC
Code of Federal Regulations
CFR
Direct Current
DC
ICA/MM, GDL 82 Mooney M20( ) Series STC
ICA
Instructions for Continued Airworthiness
ICAO
International Civil Aviation Organization
I/O
IM
MM
PC
POH
SBAS
Input / Output
Installation Manual
Maintenance Manual
Personal Computer
Pilot Operating Handbook
Satellite-Based Augmentation System
190-01810-11
Rev. 1
Page 1
ELA
EMC
FAA
GDL
Electrical Load Analysis
Electromagnetic Checkout
Federal Aviation Administration
Garmin Datalink Transceiver
STC
SW
UAT
USB
GNS
Garmin Navigator Series
Vs0
GPS
GTN
Global Positioning System
Garmin Touch Navigator
XPDR
1.4
Supplemental Type Certificate
Software
Universal Access Transceiver
Universal Serial Bus
Aircraft Stall Speed (in landing
configuration)
Transponder
Publications
When performing GDL 82 system maintenance it is recommended the following documents are available.
Table 1-1: Recommended Documents
Part Number
Garmin Document
190-01810-03
GDL 82 Pilot's Quick Start Guide
190-01810-10
GDL 82 Mooney M20() Series STC Installation Manual
190-01810-12
Airplane Flight Manual Supplement for the GDL 82 Mooney M20 Series
1.5
Revision and Distribution
This document is required for maintaining the continued airworthiness of the aircraft. When this
document is revised, every page will be revised to indicate current revision level.
Owner/operators may obtain the latest revision of this document at www.flyGarmin.com or by contacting
a Garmin dealer. Garmin contact information is available at www.flyGarmin.com.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 2
2
SYSTEM DESCRIPTION
The GDL 82 is a remote-mounted unit that contains 978 MHz and 1030 MHz transmitters, and a 1090
MHz receiver. It is installed in-line with the existing transponder and L-Band antenna. The GDL 82
transmits ownship ADS-B Out data via the UAT data link using the existing transponder’s L-Band
antenna. The GDL 82 utilizes the direct in-line connection to synchronize with the aircraft transponder via
1030 MHz interrogations to obtain the transponder Squawk (Mode 3/A) code, IDENT status and pressure
altitude.
ADS-B equipment requires GPS/SBAS data for ADS-B Out transmissions. Only the GPS/SBAS data
sources specified in the GDL 82 Mooney M20() Series STC Installation Manual, 190-01810-10, are
approved by this STC to interface with the GDL 82.
The GDL 82 uses the following interfaces:
•
Aircraft Power and Ground
•
Transponder Coaxial Connection
•
L-Band Coaxial Connection
•
GPS Coaxial Connection – Used only for internal GPS source
•
1 RS-232 I/O – Used only for external GPS source
•
1 Discrete Output – Failure Annunciator (optional)
•
2 Discrete Inputs – Anonymous Mode Switch and Squat Switch (optional)
•
USB Interface – Configuring GDL 82 and Loading Software from PC
The GDL 82 System Interface Diagram is shown in Figure 2-1.
GDL 82
Transponder
Bottom L-Band Antenna
Coax
Coax
GPS Antenna
Power/Ground
Coax
(GDL 82 with GPS only)
OPTIONAL
Failure
Annunciator
Anonymous
Mode Switch
Squat/WOW
Switch
Discrete
OR
RS-232
Discrete
GPS Time Mark
Discrete
USB
GPS Source
PC Config
Tool
Figure 2-1: GDL 82 System I/O Interfaces
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 3
3
CONTROL & OPERATION
The GDL 82 user control interface is limited to ADS-B OUT FAIL annunciator and the UAT
ANONYMOUS mode switch, installation of either or both is optional. The primary ADS-B Out UAT
transmit function of the GDL 82 does not require direct user input.
Refer to the GDL 82 Pilot’s Quick Start Guide, 190-01810-03, and the Airplane Flight Manual
Supplement for the GDL 82 Mooney M20 Series, 190-01810-12, for control and operation information.
3.1
GDL 82 Install Tool
The GDL 8X Install Tool (Garmin Part Number: 006-A0248-20) allows for configuration, diagnostics,
and software loading. The tool is available for download from the Garmin Dealer Resource Center and
flyGarmin.com. The GDL 8X Install Tool requires a computer with Microsoft Windows XP or later and
an available USB 2.0 port.
A USB A-to-B cable is required to interface between a computer and the GDL 82, refer to Figure 3-1 for
details.
Figure 3-1: USB A and USB B Connectors
The GDL 82 Install Tool provides access to the following functions •
•
•
Diagnostics – reports device information, faults, interface status and other information for post
installation checkout procedures. It also allows the unit assert log to be saved and cleared.
Configuration – allows selection of installation options.
System Update – allows upload of software to the GDL 82 unit.
To utilize the GDL 82 Install Tool, first disconnect power from the GDL 82, and then connect the USB
cable. Restore power to the GDL 82, and then run the GDL 8X Install Tool.
The GDL 8X Install Tool will automatically detect which unit it is interfaced with (e.g., GDL 82 or GDL
84/88). To use the GDL 82 Install Tool verify that the GDL 82 unit is checked Present and select the
GDL 82 button. See Figure 3-2.
Figure 3-2: GDL 8X Install Tool Selection
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 4
NOTE
When the GDL 82 unit is connected to the PC (via USB) and the GDL 8X Install Tool is active,
the GDL 82 will automatically be placed in Configuration Mode. To reset the GDL 82 into
Normal Mode, power down the unit, disconnect it from the USB and reapply power to the GDL
82.
3.1.1
Device Information
The Unit Information page, displays product information such as the model, part number, serial numbers,
software version and software part numbers to be viewed.
Figure 3-3: GDL 82 Unit Information Page
The other Diagnostics pages are used during post-installation checkout and troubleshooting. See Section
5.3 for details.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 5
3.1.2
Software Loading
This section contains instructions for loading GDL 82 software using the GDL 82 Install Tool. The GDL
82 comes preloaded with software. However, it is necessary to verify the software version and part
numbers. The System Update / Upload page, shown in Figure 3-4, displays the version and part number
of the GDL 82 System Software, FPGA, and GPS Software.
NOTE
Verify the installed software version in accordance with the GDL 82 Mooney M20() Series STC
Installation Manual, 190-01810-10.
The GDL 82 software is available at the Garmin Dealer Resource Center and flyGarmin.com.
Software may be loaded by performing the following steps on the Upload page:
1. Download the latest GDL 82 software from the Garmin Dealer Resource Center or
flyGarmin.com.
2. Under Step 1 – Select a File, select the Browse key and locate the file containing the GDL 82
software previously downloaded in step 1.
3. Under Step 2 – Upload Options, select the options to be loaded (i.e., System, FPGA, and/or GPS).
4. Under Step 3 – Start Upload, select the Upload Software key.
5. After successful completion, return to the Diagnostics / Unit Information page and verify the
software version and part numbers are correct.
Figure 3-4: GDL 82 Software Upload Page
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 6
3.1.3
Configuration
The GDL 82 Install Tool is used to configure the GDL 82 settings. All configurable settings must match
the GDL 82 System Configuration Log retained in the aircraft permanent records.
Figure 3-5: GDL 82 System Configuration Page
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 7
4.3
Maintenance Intervals
Periodic checks of the GDL 82 system installed by STC SA02573SE are specified in Table 4-1 at
specific intervals.
Table 4-1: Maintenance Intervals
Item
Description/Procedure
Section
No.
Interval
6
On Condition
Equipment
Removal and
Replacement
Removal & Reinstallation of the
following items:
• GDL 82 unit
• ADS-B OUT FAIL
Annunciator
• Anonymous Mode Switch
Equipment Visual
Inspection
Conduct a visual check of the GDL
82 unit, and associated wire harness
to ensure continued installation
integrity.
4.4
12 Calendar Months
Inspect the coaxial cable
connections, GDL 82 bonding
hardware, antenna(s) and
surrounding areas.
4.4
On Condition
The interfacing transponder
transmit power and receiver
sensitivity must be tested and
shown to comply with Title 14 CFR
Part 43 Appendix F.
7.3
On Condition
Testing
The GDL 82 must be tested and
shown to comply with Title 14 CFR
Part 91.227.
7.3
Installation, software
update or replacement of
GDL 82 [1].
Testing
The interfacing transponder and
altimeter/altitude reporting system
must be tested and shown to comply
with Title 14 CFR Part 91.411,
91.413, and Part 43 Appendix E and
F.
7.3
In accordance with Title 14
CFR Part 91.411, 91.413,
and Part 43 Appendix E
and F.
Electrical Bonding
Check
Perform an electrical bonding check
of the GDL 82.
4.5
Every 2000 Flight hours or
ten (10) years, whichever
comes first.
Lightning Strike –
Actual or
Suspected
[1] This interval condition includes the installation or replacement of the GPS antenna for the GDL 82
with GPS/SBAS receiver.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 9
4.4
Visual Inspection
Perform a visual inspection as detailed in this section. Check GDL 82 system components for damage or
other defects and replace as required. Inspection may require the temporary removal of a unit to gain
access to connectors. Follow guidance in Section 6 for equipment removal and replacement. Refer to
Appendix A of this manual for equipment locations. Refer to model specific Aircraft Maintenance
Manual for instructions on removing access panels or covers.
4.4.1
GDL 82 Visual Inspection
1. Inspect the GDL 82 unit and verify it is securely mounted.
2. Inspect unit fasteners and verify they are properly torqued and show no wear or damage.
Additionally a. Verify unit support structure is in good condition and its integrity is not compromised.
b. Inspect for corrosion and treat as required following procedures prescribed in Aircraft
Maintenance Manual.
3. Inspect any bonding straps for corrosion, loose connections, or signs of damage.
4. Inspect the condition of the wiring harness and coaxial cables.
a. Verify that all wiring and cables are securely fastened.
b. Verify that the harness shows no signs of cracking, chafing, abrasion, melting, or any
other form of damage.
c. Inspect the GDL 82 connectors for corrosion, evidence of moisture, or other defects.
Check the integrity of the shield block ground attachments to the harness connector
assembly as well as the integrity of the individual shields and their attachment.
5. If installed, inspect the ADS-B OUT FAIL annunciator and UAT Anonymous Mode switch.
a. Verify that annunciator and/or switch show no signs of damage.
b. Verify that wiring is securely fastened.
c. Inspect the labels, that they are legible and properly adhered.
d. Confirm operation of UAT anonymous mode switch and ADS-B OUT FAIL annunciator.
To check the UAT anonymous mode switch is operational, connect the laptop with
installation tool to the GDL 82 and verify the change of discrete state for the anonymous
mode switch.
4.4.2
Antenna Visual Inspection
1. Clean the antenna with water and mild soap.
2. Verify there are no cracks on the antenna body and around the antenna fasteners. If the antenna
has cracks, dents, or is otherwise broken, it must be replaced. Refer to antenna manufacturer’s
replacement instructions for details.
3. Verify the integrity of the environmental seal around the antenna base. If the antenna seal is
damaged, re-seal and complete the electrical bonding test specified in Section 4.5.
4.4.3
Post Lightning Strike Inspection
Inspection of antennas connected to the GDL 82 unit must be performed following a suspected or actual
lightning strike. Antenna and nearby aircraft structure must be inspected to verify no damage has
occurred where lightning may have attached. Antenna with visible signs of damage should be replaced.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 10
Antenna coax connection to the GDL 82 unit, grounding hardware, bonding straps, and nearby aircraft
structure supporting installation of remotely mounted GDL 82 must be inspected for damage. Repair any
damaged components, then complete the electrical bonding test specified in Section 4.5.
4.5
Electrical Bonding Test
GDL 82 Unit
1. Disconnect the antenna coaxial cables from the GDL 82.
2. Disconnect all connectors from the GDL 82.
3. Measure the DC resistance between the GDL 82 unit and the aircraft ground reference.
a. Verify the resistance is less than or equal to 2.5 milliohms in accordance with GDL 82
Mooney M20() Series STC Installation Manual, 190-01810-10, Section 4.
4. If the bonding check fails, perform the following procedures for preparation of aluminum
surfaces.
a. Clean grounding location with solvent.
b. Remove non-conductive films or coatings from the grounding location.
c. Apply a chemical conversion coat such as Alodine 1200 to the bare metal.
d. Once the chemical conversion coat is dry, clean the area.
e. Install bonding equipment at grounding location.
f. After the bond is complete, reapply a suitable film or coating to the surrounding area, if
any films or coatings were removed from the surface.
For more detail on preparing aluminum surfaces, refer to SAE ARP1870 Sections 5.1 and 5.5.
Antenna
1. Disconnect the coaxial cables from the antenna connector.
2. Measure the DC resistance between the antenna connector body and the aircraft ground reference.
a. Verify the resistance is less than or equal to 2.5 milliohms.
3. If the bonding check fails, perform the following procedures for preparation of aluminum
surfaces.
a. Clean grounding location with solvent.
b. Remove non-conductive films or coatings from the grounding location.
c. Apply a chemical conversion coat such as Alodine 1200 to the bare metal.
d. Once the chemical conversion coat is dry, clean the area.
e. Install bonding equipment at grounding location.
f. After the bond is complete, reapply a suitable film or coating to the surrounding area, if
any films or coatings were removed from the surface.
For more detail on preparing aluminum surfaces, refer to SAE ARP1870 Sections 5.1 and 5.5.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 11
5
5.1
TROUBLESHOOTING
General
This section provides information to assist troubleshooting if problems occur after completing
maintenance. Refer to the GDL 82 Configuration and Checkout Log retained in the aircraft permanent
maintenance records for a list of the interfaced equipment and system configuration data. When
troubleshooting the GDL 82, refer to the wire routing drawings and interconnect wiring diagrams that are
retained in the aircraft permanent records.
The following tables describe possible symptoms associated with the Garmin GDL 82 and provides
corresponding actions for troubleshooting. The symptoms described in the Problems column may be
possible causes of the ADS-B OUT FAIL lamp being illuminated. After completing each corrective
action, perform the appropriate return to service procedure in accordance with Section 8. If any system
fault persists after performing the associated troubleshooting actions, return the GDL 82 to Garmin for
service. See Section 6 for details.
Table 5-1: General Troubleshooting Guide
Problem
The GDL 8X Install Tool does not indicate the
GDL 82 as Present (i.e., the GDL 8X Install
Tool will not connect to the GDL 82 unit).
Poor Interfacing Transponder Performance.
(i.e., transponder does not pass Title 14 CFR
Part 43 Appendix F, RF Peak Output Power
and Receiver Sensitivity levels.)
Possible Cause(s)
Corrective Action
•
GDL 82 is not receiving
power
•
Ensure the XPDR/UAT
circuit breaker is closed.
•
Improper wiring
•
•
Circuit breaker open
Ensure the GDL 82 connector
is securely mated to the GDL
82 unit.
•
Ensure the GDL 82 is
connected to the PC via USB
cable.
•
Ensure the GDL 82 wiring is
correct.
•
Ensure the XPDR/UAT
circuit breaker is closed.
•
Ensure the GDL 82 connector
is sealed and mated to the
GDL 82 unit.
•
Ensure the GDL 82 wiring is
correct.
•
Check and verify integrity of
the antenna installation,
ground planes, and coaxial
cable.
•
Check for proper electrical
bonding/grounding of the
antenna installation.
•
Ensure the coaxial cable is
properly rated (e.g., RG-400
or better) for the length of run
with the GDL 82 insertion
loss accounted for (see GDL
82 Mooney STC IM, 19001810-10, Sec. 3.3, for
details)
•
GDL 82 is not receiving
power
•
Due to the nature of antenna
radiation patterns, nulls or
marginal conditions may be
observed when measuring a
utilized radiated signal from
the aircraft.
•
Transponder antenna is
damaged or improperly
installed.
•
Coaxial cable has too high
insertion loss.
•
Coaxial connectors are
improperly installed or
damaged.
•
Transponder requires service
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 12
Table 5-2: System Faults Troubleshooting Guide
Problem
Position (GPS) Input Fault
Possible Cause
•
•
Control Panel (XPDR) Input
Fault
Aircraft ID Fault
•
Corrective Action
The GDL 82 is not
receiving GPS
position from its
internal GPS/SBAS
engine.
The GDL 82 is not
receiving GPS
position from its
external GPS source.
The GDL 82 is not
receiving
transponder Mode
3/A (Squawk) code,
IDENT status, or
pressure altitude.
•
Verify the following in the Diagnostics / GPS page of
the GDL 82 Install Tool (ref. Section 5.3):
o
Source: Internal
o
Time Mark: Active (green box)
o
Interface Status: Receiving (green box)
•
Check the integrity of the GPS antenna installation,
connections, and coaxial cable condition.
•
Ensure GPS antenna has a clear, unobstructed view of
the sky.
•
Wait approximately 20 minutes for the GDL 82 to
acquire position. The Diagnostics / GPS Sat Status
page of the GDL 82 Install Tool can show if the GPS is
acquiring satellites, indicated by a green boxes per
Channel.
•
Ensure the external GPS source is on and has acquired a
position fix.
•
Verify the GDL 82 and external GPS source are
configured properly.
•
Verify the following in the Diagnostics / GPS page of
the GDL 82 Install Tool (ref. Section 5.3):
o
Source: External
o
Time Mark: Active (green box)
o
Interface Status: Receiving (green box)
•
Ensure the wiring from the GDL 82 to the external GPS
source is connected properly. The time mark out from
the external GPS source must be connected to the
correct time mark on the GDL 82 in accordance with
the GDL 82 Mooney M20() Series STC Installation
Manual, 190-01810-10.
•
Ensure transponder has power and is properly wired.
•
Ensure the transponder is operating in altitude reporting
(ALT) mode.
•
Ensure interfacing transponder is NOT Mode S.
•
Check the coaxial cable and connections between the
GDL 82 and interfacing transponder.
•
ICAO address is all
ones or zeros.
•
Enter the correct ICAO address in the GDL 82 Install
Tool.
•
Tail Number has not
been set
•
Enter the correct aircraft tail number in the GDL 82
Install Tool.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 13
Problem
Configuration Fault
Possible Cause
•
Corrective Action
The GDL 82
configuration is
invalid or corrupt.
•
Ensure the GDL 82 is configured in accordance with
the GDL 82 Mooney M20 Series STC Installation
Manual, 190-01810-10.
•
In the GDL 82 Install Tool Configuration / System
page, Reset Configuration. Reconfigure the GDL 82
unit with the correct settings.
•
Contact Garmin.
Factory Calibration Fault
•
The GDL 82 has
failed a calibration
self-check during
the internal powerup integrity check.
•
Contact Garmin.
UAT Transmitter Fault
•
The GDL 82
transmitter has
failed.
•
Inspect coaxial cables and connections.
•
Ensure the GDL 82 is configured in accordance with
the GDL 82 Mooney M20 Series STC Installation
Manual, 190-01810-10.
•
Contact Garmin.
The GDL 82 has
experienced an
internal electrical
fault during the
internal power-up
integrity check.
•
Ensure the GDL 82 connector is securely mated to the
GDL 82 unit.
•
Ensure the GDL 82 wiring is correct.
•
Contact Garmin.
The GDL 82 Field
Programmable Gate
Array (FPGA)
software is
corrupted.
•
Contact Garmin.
Electrical Fault
FPGA Fault
5.2
•
•
ADS-B OUT FAIL Annunciator
When one or more faults are present, the ADS-B OUT FAIL annunciator (if installed) will illuminate to
indicate that the ADS-B Out transmission is not operational or that required input interface(s) have failed
(e.g., GPS source or transponder).
5.3
GDL 82 Install Tool
The GDL 82 Install Tool can act as a troubleshooting interface to the GDL 82. When connected to the
GDL 82, the Diagnostics / Faults page of the GDL 82 Install Tool, shown in Figure 5-1, displays faults
reported by the GDL 82 as Active and all other faults as Inactive.
The Diagnostics / GPS page, shown in Figure 5-2, can indicate if the GDL 82 is receiving a valid GPS
signal for either the Internal or External source when the Nav Status shows a green box with either 3D Fix
or 3D Diff Fix.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 14
The Diagnostics / GPS Sat Status page, shown in Figure 5-3, can indicate if the GDL 82 is actively
acquiring GPS satellites for the internal GPS source.
Figure 5-1: GDL 82 Install Tool, Faults Page
Figure 5-2: GDL 82 Install Tool, GPS Page
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 15
Figure 5-3: GDL 82 Install Tool, GPS Sat Status Page
5.4
GDL 82 Data Logging
Data logging on the GDL 82 may be used to help troubleshoot issues. Unit configuration and software
data is gathered from the GDL 82 in Configuration Mode and is stored in *.csv log file. Figure 5-4 shows
the Diagnostics / Assert Log page in the GDL 82 Install Tool.
Figure 5-4: GDL 82 Install Tool, Assert Log Page
ICA/MM, GDL 82 Mooney M20( ) Series STC
Page 16
190-01810-11
Rev. 1
5.5
GDL 82 Connector Pinout
Figure 5-5: Rear View, Connector J821
Table 5-3: J821 Pinout
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
GDL 82 Pin Name
USB DTIME MARK A
TIME MARK B
SQUAT SWITCH*
ANONYMOUS MODE*
USB D+
GROUND
RS-232 TX1
RS-232 RX1
ADS-B OUT FAIL ANNUN
USB V
RESERVED
RESERVED
GROUND
POWER
I/O
In/Out
In
In
In
In
In/Out
-Out
In
Out
In
---In
*Active-Low:
•
Inactive: 2 ≤ Vin ≤ 33 or Rin ≥ 130kΩ (Open)
•
Active: Vin ≤ 1.0 VDC with ≥75µA sink current, or
Rin ≤ 375Ω (GND)
Sink current is internally limited to 200 µA max for a
grounded input.
5.5.1
Discrete Inputs
The SQUAT SWITCH* input can be used to control the air/ground status of the ADS-B Out message.
For Mooney aircraft an airspeed gear safe switch (if available) can be used instead of a weight on wheels
or squat switch.
The ANONYMOUS MODE* can be wired into a switch to control the GDL 82 anonymity feature.
5.5.2
Discrete Output
The ADS-B OUT FAIL ANNUN output discrete can be wired to an annunciator to indicate that the ADSB Out transmission is not operational.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 17
6
EQUIPMENT REMOVAL & INSTALLATION
WARNING
Ensure that the aircraft power is off before removal or reinstallation of the GDL 82. Unplug any
auxiliary power supply.
This section contains procedures and requirements for removal and reinstallation of equipment installed
under STC SA02573SE. After removal and reinstallation, the GDL 82 Return to Service procedures must
be performed in accordance with Section 8.
6.1
GDL 82 Unit
Removal
1. Remove power from the GDL 82 and interfaced transponder by pulling the XPDR/UAT circuit
breaker.
2. Gain access to the GDL 82 unit.
3. Loosen the set screw used to secure the GDL 82 15 pin D-sub to the unit, until completely
disengaged.
4. Disconnect the coaxial connectors from the GDL 82 unit.
5. Loosen the screws securing the GDL 82 unit to the avionics shelf or mounting plate, until
completely disengaged.
6. Remove the GDL 82 unit.
Reinstallation
1. Inspect the electrical and coaxial connectors and pins for signs of damage. Repair any damage.
2. Mount the GDL 82 unit on the avionics shelf or mounting plate in accordance with the GDL 82
Mooney M20() Series STC Installation Manual, 190-01810-10.
3. Reconnect the 15 pin D-sub connector, GPS, transponder and L-Band antenna coaxial connectors
to the GDL 82 unit.
4. Close the XPDR/UAT circuit breaker and perform the return to service procedures in accordance
with Section 8.
6.2
Annunciator and Switch
Removal
1. Disconnect power from the GDL 82 and interfaced transponder by pulling the XPDR/UAT
circuit breaker.
2. Disconnect annunciator and/or switch wiring.
3. Remove annunciator and/or switch.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 18
Reinstallation
1. Install annunciator and/or switch in accordance with the GDL 82 Mooney M20() Series STC
Installation Manual, 190-01810-10.
2. Reconnect annunciator and/or switch wiring.
3. Close the XPDR/UAT circuit breaker.
4. Perform the return to service procedures in accordance with Section 8.
6.3
GPS Antenna
The GPS antenna is not installed by this STC. Refer to the antenna manufacturer’s maintenance
information for removal and reinstallation instructions.
6.4
Transponder Antenna
The transponder antenna is not installed by this STC. Refer to the antenna manufacturer’s maintenance
information for removal and reinstallation instructions.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 19
7
EQUIPMENT CONFIGURATION & CHECKOUT
This section contains instructions for configuration and checkout of the GDL 82 after removal and
reinstallation or replacement of equipment under this STC. Steps not applicable to a particular
installation may be omitted.
The person performing these procedures must be familiar with the aircraft, have a working knowledge of
typical avionics systems, and has experience using the test equipment defined in this section.
NOTE
The tools called out in Section 4.2.2 are required for the checkout procedures below.
7.1
System Checkout
Original GDL 82 Reinstalled
If the original GDL 82 is reinstalled, re-configuration is not required. Continue to GDL 82 Post-Install
Test (Section 7.3).
New, Repaired, or Exchanged GDL 82 Installed
If a new, repaired, or exchanged GDL 82 is installed, the applicable unit configuration from the Post
Install Checkout Log in the aircraft permanent records (refer to Section 7.2) must be loaded to the unit.
NOTE
Verify the installed software version in accordance with the GDL 82 Mooney M20() Series STC
Installation Manual, 190-01810-10.
7.1.1
Annunciator and Switch Check (if installed)
Operate the annunciator push-to-test button and verify the ADS-B OUT FAIL annunciator illuminates. To
verify that the annunciator and/or switch is correctly interfaced to the GDL 82, reference the GDL 82
Mooney M20() Series STC Installation Manual, 190-01810-10, Section 5.3.5, for the discrete input and
output checks.
7.1.2
Transponder and GPS Antenna
See antenna manufacturer’s installation data for return-to-service procedures.
7.2
GDL 82 Configuration
Retrieve the Post Installation Checkout Log from the aircraft permanent records. For the maintenance
activities that repaired or replaced the previous GDL 82, configure the GDL 82 as defined by the
applicable data contained in the Post Installation Checkout Log. Configuration of the GDL 82 is
accomplished through the GDL 8X Install Tool. Refer to the GDL 82 Mooney M20() Series STC
Installation Manual, 190-01810-10, Section 5.2, for instructions on configuring the GDL 82 in
accordance with this STC.
NOTE
Ensure the Post Installation Checkout Log remains with the aircraft permanent records upon
completion of any maintenance activities.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 20
7.3
GDL 82 Post-Installation Test Procedures
Procedures that must be completed when the GDL 82 is removed and re-installed or replaced with a new
unit are detailed in this section.
Refer to the GDL 82 Mooney M20() Series STC Installation Manual, 190-01810-10, Section 5.3, for
Ground Checks using the GDL 82 Install Tool in configuration mode.
Refer to the GDL 82 Mooney M20() Series STC Installation Manual, 190-01810-10, Section 5.4, for
Regulatory, ADS-B Out and EMI Checks.
If no other service is to be performed, continue to the return-to-service checks in Section 8.
8
RETURN TO SERVICE PROCEDURE
After removing and re-installing or replacing the GDL 82, perform the system configuration and checkout
procedures in Section 7.
8.1
Maintenance Records
After conducting the required return-to-service procedures in accordance with this document, the aircraft
may be returned to service.
Record the following information in the appropriate aircraft maintenance logs.
•
•
Part number and serial number of any LRU which was replaced.
Any other applicable information related to the maintenance work performed on the aircraft.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page 21
APPENDIX A – INSTALLATION-SPECIFIC INFORMATION
A copy of this appendix must be used to record information for a specific installation of the GDL 82 system and maintained with the aircraft
permanent records.
The GDL 82 unit specific information and configuration settings can be saved to a text file by clicking the Save Configuration To File button on
the Configuration / System page in the GDL 82 Install Tool. This button will record the following data to a text file.
•
•
•
Device Information: Model, Serial Number
Software: Version, Part Number
System Configuration:
o Aircraft Tail Number
o ICAO Address
o Emitter Category
o Light Category Stall Speed
o Squat Switch
o Transponder VFR Squawk Code
o GPS Source and Antenna Offset
o ADS-B Anonymous Mode Switch
o 1090ES and UAT Receive Capable
ICA/MM, GDL 82 Mooney M20( ) Series STC
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Rev. 1
Page A-1
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page A-2
ELECTRICAL LOAD ANALYSIS
Reference the GDL 82 Mooney M20() Series STC Installation Manual, 190-01810-10, Section 3.5, for ELA procedures.
ITEMS ADDED TO
AIRCRAFT
ELECTRICAL LOAD (A) [1]
COMMENT
Subtotal:
Net Change In Bus Load:
[1] Use maximum current draw when performing this calculation.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page A-3
EQUIPMENT INTERFACED TO GDL 82
NOTE
This information is optional and is not required to be completed or maintained with the aircraft records.
EXTERNAL GPS SOURCE
N/A (Internal)
GTN 6XX/7XX
GTN System Software:
Version:
Part Number:
GNS 400W/500W Series
GNS System Software:
Version:
Part Number:
GNS 480
GNS 480 System Software:
Version:
Part Number:
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page A-4
WIRE ROUTING
Attach aircraft wire routing diagrams showing the installed LRUs and approximate routing of the wires or a markup of the wire routing diagrams
from the GDL 82 Mooney M20() Series STC Installation Manual, 190-01810-10, detailing which equipment was installed and the approximate
wire routing.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page A-5
AIRCRAFT WIRING DIAGRAMS
Attach the aircraft wiring diagrams showing the equipment installed by this STC or a markup of the interconnect diagrams from the GDL 82
Mooney M20() Series STC Installation Manual, 190-01810-10, detailing which equipment was installed and how it was connected.
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page A-6
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page A-7
Ground Checks (Normal Mode)
External Annunciator Check Performed
N/A
Regulatory Test Performed
ADS-B Out Test Performed
EMC Check Performed
Installation Specific Information (Config. Log, ELA, Wiring Diag. and
Grnd Checks) Completed and Inserted in aircraft permanent records.
Aircraft Weight and Balance Complete and Inserted in aircraft
permanent records.
Complete AFMS and inserted in AFM/POH.
Notes
ICA/MM, GDL 82 Mooney M20( ) Series STC
190-01810-11
Rev. 1
Page A-8
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