Garmin | G5 Electronic Flight Instrument for Certificated Aircraft | Garmin G5 Electronic Flight Instrument for Certificated Aircraft Maintenance Manual w/ICA - G5 Electronic Flight Instrument Part 23 AML STC

Garmin G5 Electronic Flight Instrument for Certificated Aircraft Maintenance Manual w/ICA - G5 Electronic Flight Instrument Part 23 AML STC
Garmin G5
Electronic Flight Instrument
Part 23 AML STC Maintenance Manual
Including Instructions for Continued
Airworthiness
190-01112-11
July 2016
Revision 1
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a trademark of Garmin International or its subsidiaries. These trademarks may not be used without the
express permission of Garmin.
Garmin International, Inc
1200 E. 151st Street Olathe, KS 66062 USA
Telephone: 913-397-8200
Technical Support and Field Service Engineers: 888.606.5482
www.flyGarmin.com
Garmin (Europe) Ltd.
Liberty House
Bull Copse Road
Hounsdown Business Park
Southampton, SO40 9LR, UK
Telephone: +44 (0) 23 8052 4000
Fax: +44 (0) 23 8052 4004
Garmin AT, Inc.
2345 Turner Rd. SE
Salem, OR 97302 USA
Telephone: 503.581.8101
Garmin G5 Electronic Flight Instrument Part 23 AML STC Maintenance Manual
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RECORD OF REVISIONS
Revision
1
Revision Date
Description
7/22/16
Initial Release
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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 are used to bring to the installer’s immediate attention not only damage
to the equipment but personal injury may occur if the instruction is disregarded.
CAUTION
Cautions are used to alert the individual damage to equipment may result if the
procedural step is not followed to the letter.
NOTE
Notes are used to expand and explain the preceding step and provide further
understanding of the reason 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.
WARNING
Perchlorate Material – special handling may apply, See www.dtsc.ca.gov./hazardouswaste/
perchlorate.
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BATTERY WARNINGS:
If these guidelines are not followed, the lithium-ion battery may experience a shortened life span
or may present a risk of damage to the device, fire, chemical burn, electrolyte leak, and/or injury.
Do not leave the battery exposed to a heat source or in a high temperature environment. To help
prevent damage, store the battery out of direct sunlight.
For maximum battery longevity, store within a temperature range of 32˚ to 77˚F (from 0˚ to
25˚C).
Do not use a sharp object to remove the battery.
Do not disassemble, puncture, damage, or incinerate the device or battery.
Keep the battery away from children.
Only replace the battery with the approved replacement from Garmin. Using another battery
presents a risk of fire or explosion. To purchase a replacement battery, see you Garmin dealer or
the Garmin website.
Contact your local waste disposal department to dispose of the device and battery in accordance
with applicable local laws and regulations.
CAUTION:
The display uses a lens with a special coating that may be sensitive to skin oils, waxes, and
abrasive cleaners. CLEANERS CONTAINING AMMONIA WILL HARM THE ANTIREFLECTIVE COATING. It is very important to clean the lens using a clean, lint-free cloth and
a cleaner that is specified as safe for anti-reflective coatings. Avoid any chemical cleaners or
solvents that can damage plastic components.
CAUTION:
The G5 does not contain any user-serviceable parts. Repairs may only be made by an authorized
Garmin service center. Unauthorized repairs or modifications could result in permanent damage
to the equipment and void both the warranty and the authority to operate this device under FAA,
FCC, and other applicable regulations.
NOTE:
Use of polarized eyewear may cause the display to appear dim or blank.
NOTE
All images used in this document are current at the time of publication but are subject to change
and may not be up to date.
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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 ...................................................................................................................................... 1
1.5 Revision and Distribution ................................................................................................................. 2
2 SYSTEM DESCRIPTION......................................................................................................................... 2
2.1 G5 Electronic Flight Instrument ........................................................................................................ 2
2.2 Battery .............................................................................................................................................. 3
2.3 Installation Location ......................................................................................................................... 4
3 BASIC CONTROL & OPERATION .......................................................................................................... 4
4 INSTRUCTIONS FOR CONTINUED AIRWORTHINESS ....................................................................... 4
4.1 Airworthiness Limitations ................................................................................................................. 4
4.2 Servicing Information ....................................................................................................................... 4
4.3 Maintenance Intervals ...................................................................................................................... 4
4.4 Battery Capacity Check.................................................................................................................... 5
5 TROUBLESHOOTING ............................................................................................................................. 5
5.1 General ............................................................................................................................................ 5
5.2 G5 Attitude ....................................................................................................................................... 6
5.3 G5 Air Data ...................................................................................................................................... 6
5.4 G5 MicroSD Card ............................................................................................................................. 6
5.5 G5 Data Logging .............................................................................................................................. 6
5.6 Outline and Installation Drawings .................................................................................................... 7
5.7 G5 Interconnect Drawings ............................................................................................................... 8
6 EQUIPMENT REMOVAL & INSTALLATION ......................................................................................... 10
6.1 G5 unit ............................................................................................................................................ 10
6.2 G5 Battery ...................................................................................................................................... 11
6.3 G5 Mounting Ring Replacement .................................................................................................... 12
6.4 GPS Antenna ................................................................................................................................. 12
7 EQUIPMENT CONFIGURATION & TESTING ...................................................................................... 13
7.1 Recommended Test Equipment .................................................................................................... 13
7.2 Pitot Static System Leak Check ..................................................................................................... 13
7.3 G5 Software ................................................................................................................................... 13
7.4 G5 Configuration Mode .................................................................................................................. 14
7.5 G5 Calibration Procedures ............................................................................................................. 17
8 SYSTEM RETURN TO SERVICE PROCEDURE ................................................................................. 18
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FIGURES
FIGURE
PAGE
Figure 2-1 G5 Electronic Flight Instrument ...................................................................................... 2
Figure 2-2 G5 Battery....................................................................................................................... 3
Figure 5-1 G5 Outline Drawing (side view) ...................................................................................... 7
Figure 5-2 G5 Outline Drawing (back view) ..................................................................................... 7
Figure 5-3 G5 Exploded View .......................................................................................................... 8
Figure 5-4 J51 on the G5 ................................................................................................................. 8
Figure 5-5 G5 with RS-232 Interface ............................................................................................... 9
Figure 5-6 G5 with External GPS Antenna ...................................................................................... 9
Figure 6-1 G5 Hex Driver ............................................................................................................... 10
Figure 6-2 G5 Captive Mounting Screw ......................................................................................... 11
Figure 6-3 G5 Mounting Ring ......................................................................................................... 12
TABLES
TABLE
PAGE
Table 1-1, Required Documents ..................................................................................................... 1
Table 4-1, Maintenance Intervals .................................................................................................... 4
Table 7-1: G5 Configuration Settings............................................................................................. 15
Table 7-2: Calibration Procedure Summary................................................................................... 17
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1
INTRODUCTION
1.1 Introduction
This document provides Instructions for Continued Airworthiness (ICA) for the Garmin G5 Electronic
Flight Instrument as installed in Part 23 aircraft under STC SA01818WI. 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 G5.
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 G5. An
overview of the system interface is also provided.
Section 3: Control & Operation
Presents basic control and operation information specifically tailored to maintenance practices.
Section 4: Instructions for Continued Airworthiness
Provides maintenance instructions for continued airworthiness of the G5.
Section 5: Troubleshooting
Provides troubleshooting information to aid in diagnosing and resolving potential problems with the G5.
Section 6: Equipment Removal & Installation
Gives instructions for the removal and installation of the G5.
Section 7: Equipment Configuration & Testing
Gives instructions for loading software, configuring, and testing of G5.
Section 8: Return to Service Procedure
Specifies return-to-service procedures to be performed upon completion of maintenance of the G5.
1.3 Acronyms and Abbreviations
The following acronyms are used in this manual:
AML
CFR
FAA
Approved Model List
Code of Federal Regulations
Federal Aviation Administration
GPS
ICA
STC
Global Positioning System
Instructions for Continued Airworthiness
Supplemental Type Certificate
1.4 Publications
The following documents are recommended to be available when performing maintenance on the G5.
Table 1-1, Recommended Documents
Part Number
Garmin Document
190-01112-12
Garmin G5 Part 23 AML STC Pilot's Guide
190-01112-10
Garmin G5 Part 23 AML STC Installation Manual
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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 from the Garmin website,
www.garmin.com.
2
SYSTEM DESCRIPTION
2.1 G5 Electronic Flight Instrument
The G5 Electronic Flight Instrument is shown in Figure 2-1. The G5 is an electronic flight instrument
display operating as a standalone flight display. It features a bright, sunlight readable, 3.5-inch color
display which is sized to fit in a standard 3-1/8-inch instrument cutout. The G5 contains integrated
attitude/air data sensors that provides display of attitude and secondary display of air data information.
Figure 2-1 G5 Electronic Flight Instrument
The G5 calculates aircraft attitude using information from its built-in inertial sensors. If the G5 senses that
the attitude solution is valid, but not yet within the internal accuracy limits, "ALIGNING" is displayed. The
G5 can align itself both while taxiing and during level flight.
The G5 will also use GPS and airspeed data to provide the most accurate attitude information. If none of
these additional sources of information are available, attitude calculations will still be valid but accuracy
may be slightly affected.
The G5 attitude functions are shown below:
• Pitch
• Roll
The G5 has a Turn Rate Indicator located at the bottom of the PFD Page. Tick marks to the left and right
of the displayed heading denote standard turn rates (3 deg/sec). A magenta Turn Rate Trend Vector
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shows the current turn rate. A standard-rate turn is shown on the indicator by the trend vector stopping at
the standard turn rate tick mark.
The G5 displays slip/skid information as indicated by the location of the ball at the lower center portion of
the indicator.
The G5 receives a GPS input via one of the following methods:
•
•
•
GPS antenna
GTN 6XX/7XX series navigator
GNS 4XXW/5XXW series navigator
The following functions are provided by the GPS input:
•
•
Ground Track
Ground Speed (GS)
The G5 installation is connected to the aircraft Pitot / Static system which provides the following
functions:
•
•
•
•
•
•
•
•
•
Secondary Airspeed indicator
Secondary Barometric altimeter
Secondary Vertical speed
Secondary Altimeter Barometric Setting
Secondary Altimeter
Secondary Altitude Display
Selected altitude setting, bug and visual altitude alerting
Secondary Vertical Speed Indicator
Vspeed references
2.2 Battery
The G5 has an external lithium-ion battery that provides up to 4 hours of emergency power.
Figure 2-2 G5 Battery
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4.4 Battery Capacity Check
1. Without power applied to the aircraft, turn on the G5 by pressing the power button in the lower
left corner of the unit.
2. Note the remaining battery capacity (%) at the top left corner of the display.
3. After about a minute, the remaining capacity will change from (%) to time (hour:min).
4. If the remaining capacity is less than one hour (1:00), allow the battery to charge until the
capacity shows greater than 95% and repeat the check.
5. If the remaining capacity is less than one hour (1:00) after charging, the battery must be replaced.
5
TROUBLESHOOTING
5.1 General
NOTE
The term ‘Red-X’ refers to a red “X” that appears on different areas of the display to indicate the
failure of that particular function
If a Red-X appears on the display or anywhere in the configuration mode menus, the following
troubleshooting steps may be used to help identify the cause.
1. Review the airframe logbook to verify if any G5 or other avionics or electrical maintenance has
been performed recently that may have contributed to the failure.
2. Check for loose wire terminals on the circuit breaker connections on the power wire(s) causing
intermittent power connections. Also, check for intermittent circuit breakers.
3. Check that all connectors are fully seated, and that the jack screw connectors are fully tightened
on both sides of all connectors.
4. Check for a loose wire harness that is able to move around during flight. This condition may
cause the wire to pull on or vibrate the connector, making intermittent connections.
5. Ensure that the G5 is mounted securely.
6. Look for any heavy objects that may not be fastened tight to the aircraft structure that could be
inducing vibration in the G5's attitude sensors.
7. Look for evidence of water or fluid contamination in the area around the G5.
8. Unplug the connector on the G5 or any affected LRU and check for bent pins.
9. Inspect the wire harness clamp on the rear of all connectors to verify that it is not too tight and
smashing/shorting the wires.
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5.2 G5 Attitude
If the attitude is failed and shows a Red-X condition, follow the troubleshooting steps in the previous
section. If this does not resolve the issue, gather answers to the following questions. This information
may be helpful to the customer, the avionics dealer, or to Garmin Aviation Product Support in
troubleshooting the failure.
1) What specifically was the nature of the failure? Was it a Red-X of only GPS track, only pitch/roll,
or a combination?
2) If there was a Red-X of pitch or roll information, did the unit display an alignment message
(which is indicative of a reset), or a failure message (which is indicative of an invalidated output)?
3) What exactly was the aircraft doing in the two minutes that preceded the failure (taxing on the
ground, flying straight-and-level flight, turning, climbing, etc)? If the problem occurred on the
ground, was it within 100 feet of a hangar using GPS repeaters?
4) How long did the failure last? Was it brief or sustained? If it was repetitive, about how many
times did it happen? Did it happen on more than one day?
5) Was the problem correlated with a specific maneuver or a specific geographic area?
6) Can the problem be repeated reliably?
7) Did the onset of the problem occur shortly after a software upload to the G5?
8) Was there a loss of the GPS position lock?
5.3 G5 Air Data
If the airspeed and/or altitude is failed and shows a Red-X condition:
1) Inspect the pitot/static plumbing integrity.
2) Inspect the pitot/static ports and all associated equipment.
3) If the problem persists, replace the G5 with a known good unit.
5.4 G5 MicroSD Card
A stuck or sticking microSD™ card in the G5 can sometimes be caused by the card thickness variability
(especially if there is more than one label on the card). This is usually caused by the card sticking in the
overlay opening, not by the card sticking to the socket inside the unit. Try another card (without a label if
possible) to confirm the problem. If the second card sticks, the microSD™ socket board inside the unit
may be misaligned with the overlay and the G5 will require repair. Garmin recommends using SanDisk®
brand cards.
5.5 G5 Data Logging
Data logging on the G5 may be used to help troubleshoot issues. Operational data is gathered from the
G5 during flight or on ground and is stored in *.csv log files on the microSD™ card (if installed).
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5.6 Outline and Installation Drawings
Figure 5-1 G5 Outline Drawing (side view)
Figure 5-2 G5 Outline Drawing (back view)
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Figure 5-3 G5 Exploded View
5.7 G5 Interconnect Drawings
Figure 5-4 J51 on the G5
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Figure 5-5 G5 with RS-232 Interface
Figure 5-6 G5 with External GPS Antenna
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6
EQUIPMENT REMOVAL & INSTALLATION
This section describes how to remove and install the equipment associated with this STC.
6.1 G5 Unit
CAUTION:
When removing and/or installing the G5, always ensure that aircraft power is off.
Unplug any auxiliary power supplies.
Removal
1. Insert a hex drive tool through the access hole in the front cover of the G5 as shown in Figure 6-1
loosen the unit from the mounting ring.
Figure 6-1 G5 Hex Driver
2. Disconnect the pitot and static lines from the G5 unit.
3. Disconnect the electrical connector and GPS coaxial cable connector (if installed) from the G5
unit.
4. Remove the G5 unit.
Reinstallation
1. Inspect the electrical and coaxial connectors and pins for signs of damage. Repair any damage.
2. Reconnect the electrical connector and GPS coaxial connector (if installed) to the G5 unit.
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3. Reconnect the pitot and static lines to the G5 unit. The ports are labeled on the unit using the
abbreviations “P” and “S” respectively.
4. Insert the alignment pin located at the top of the unit into the mating hole in the mounting ring,
pushing the unit flush with the instrument panel.
5. Insert a hex drive tool through the access hole in the front cover of the G5 as shown in Figure 6-1
and tighten the unit to the instrument panel using 10-12 in-lbs torque.
6. Proceed to Section 7 for configuration and testing.
Note: If a replacement G5 unit is being installed in an instrument panel greater than 0.150 inch thick, the
captive mounting screw must be replaced with a longer #6-32 hex socket head screw. To replace the
captive mounting screw, remove the two #4-40 flat head Phillips mount plate screws, the G5 screw mount
plate, and the captive screw as shown in Figure 6-2. Install a longer #6-32 hex socket head screw and
reinstall the screw mount plate. Ensure correct orientation of the screw mount plate before applying 6-8
in-lb. of torque to the #4-40 mount plate screws.
Figure 6-2 G5 Captive Mounting Screw
6.2 G5 Battery
Removal
1. Loosen the G5 unit per Section 6.1. Do not remove the pitot and static lines or the electrical and
GPS coaxial cable connectors from the G5 unit if access to the battery can be gained while these
items remain connected.
2. Use a screwdriver to loosen the battery jackscrews on the back of the unit (reference Figure 5-3.)
3. Remove the battery from the G5 unit.
Reinstallation
1. Locate the battery on the back of the G5 unit.
2. Use a screwdriver to tighten the battery jackscrews to back of the G5 unit.
3. Reinstall the G5 unit per Section 6.1.
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6.3 G5 Mounting Ring Replacement
Removal
1. Loosen the G5 unit per Section 6.1. Do not remove the pitot and static lines or the electrical and
GPS coaxial cable connectors from the G5 unit if access to the mounting ring can be gained while
these items remain connected.
2. Remove the three #6-32 screws that secure the mounting ring to the instrument panel.
3. Remove the G5 mounting ring.
Reinstallation
1. Locate the new mounting ring, and secure to the instrument panel using the three #6-32 screws.
2. Evenly torque the screws to 10-12 in-lbs.
3. Reinstall the G5 unit per Section 6.1.
Figure 6-3 G5 Mounting Ring
6.4 GPS Antenna
Refer to the data which installed the GPS antenna for removal and installation of the GPS antenna.
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7
EQUIPMENT CONFIGURATION & TESTING
This section contains instructions for configuration and checkout of the G5 Electronic Flight Instrument
after reinstallation or replacement. The steps which are not applicable to a particular installation may be
skipped.
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.
7.1 Recommended Test Equipment
The following test equipment is recommended to conduct the procedures in this section:
• Air data test set (pitot/static ramp tester)
• Digital Multi-Meter
• Ground power unit capable of supplying 14/28 Vdc power to the aircraft systems and avionics
• Digital Level or equivalent
NOTE
All test equipment must have current calibration records.
7.2 Pitot Static System Leak Check
If the pitot and/or static system lines were removed from the G5 unit, perform a pitot static system leak
check in accordance with the aircraft manufacturer’s approved data.
CAUTION
To avoid damaging the G5 pressure sensors, both the pitot and static ports must be connected to
the air data test set.
7.3 G5 Software
This section contains procedures for loading software to the G5 unit.
7.3.1 Loader Card Creation
To create a software loader card, follow the procedures outlined below.
1. To obtain the latest software version approved for this STC, visit www.Garmin.com and navigate
to the Aviation Product/General Aviation/Indicators/G5 page. Do not download software from
the Experimental Aircraft web page.
2. Download the self-extracting update file onto your hard drive.
3. Insert a FAT32-formatted microSD™ card with at least 20 MB of free space into your card
reader.
4. Open the self-extracting update file and follow the instructions provided by the installer
application. You will be prompted to specify the drive letter of the microSD card you wish to use
for the update. When the transfer is complete, safely eject the microSD card.
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7.3.2 Software Loading Procedure
1. Power on the G5, then insert the software loader card created in Section 7.3.1 into the microSD™
card slot.
2. If the version of software on the card is newer than the version currently on the unit, a software
update pop-up will appear on the screen. Select OK to begin the update.
3. The unit will reboot to the software update screen and the software update will begin
automatically. This screen will show the progress of the software update.
4. Ensure power is not removed while the update is being performed.
5. The unit will reboot after the update is complete.
6. The new software version will be displayed while the unit powers on or in the configuration mode
menu.
7.4 G5 Configuration Mode
To enter configuration mode, hold down the knob while powering on the G5. Configuration selections
are made by rotating and pressing the knob on the face of the G5 as necessary to select the correct
configurations.
7.4.1 Configuration Pages Summary
When in configuration mode, the G5 displays the following configurations pages:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Device Information – used to display device specific information such as the software version and
basic indicator configuration.
Attitude – used to configure Indicator Type, Pitch Display preferences, and User Pitch offset.
Air Data – used to enable/ disable the G5 Air Data Sensors and configure the Vertical Speed rate.
Airspeed – allows for configuration of the reference speeds.
Flight Controls – used to configure the system for autopilot servos if installed.
Backlight – used to configure backlight configuration parameters.
Display – used to configure the display format of the G5.
Battery – used to set backup battery status and power off modes.
GPS – used to configure the internal GPS receiver.
Navigation – used to configure the display of navigation information
Units – This page is used to configure the units type to display altitude, airspeed, ground speed,
vertical speed and pressure displays.
RS-232 – used to configure the RS-232 input and output ports used of the G5.
ARINC 429 - used to configure the ARINC 429 input and output ports used of the G5.
Exit Configuration Mode – used to exit configuration mode.
7.4.2 G5 configuration
Before replacing a G5 unit, the technician should obtain the most current G5 configuration settings which
are typically kept with the aircraft records. If the existing configuration setting record is not available, set
the configuration to match the values and units indicated in the aircraft’s AFM or other operational
information. If any changes are made to the configuration settings, record the new settings in Table 7-1
and keep in the aircraft records for future reference.
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Table 7-1: G5 Configuration Settings
Date:
Aircraft Make/Model:
Aircraft Reg #/Serial #:
G5 Part #:
G5 Serial #:
G5 software version:
CONFIGURATION PAGE
CONFIGURATION OPTION
CONFIGURATION SETTING
Device Information
Installation Type
Standalone Instrument
Diagnostics/Data Log
Enabled
Indicator Type
Pitch Display
User Pitch Offset
Air Data Sensors
Vertical Speed Indicator
VNE
VNO
VSO
VS1
VFE
VA
VX
VY
VG
VR
VMC
VYSE
Autopilot Servos
Current Mode
Default Mode
Minimum Photocell Input
Minimum Display Brightness
Maximum Photocell Input
Maximum Display Brightness
Filter Time Constant
HSI Page
Power Up Page
Show Status on PFD
Automatic Power Off
Internal GPS Receiver
Navigation Data
Normal
Normal
Disabled
Enabled
Attitude Configuration
Air Data
Airspeed
Note: Configure Units prior to
setting airspeeds
Flight Controls
Backlight
Display
Battery
GPS
Navigation
Note: This configuration Page
is only present when RS-232
Input Format is configured for
MapMx
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None
Automatic
Automatic
Default
Default
Default
Default
Default
Disabled
PFD
Always
On Ground Only
Enabled
Disabled
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Date:
Aircraft Make/Model:
Aircraft Reg #/Serial #:
G5 Part #:
G5 Serial #:
G5 software version:
CONFIGURATION PAGE
CONFIGURATION OPTION
CONFIGURATION SETTING
Units
Altitude
Distance
Airspeed
Ground Speed
Ground Track
Vertical Speed
Pressure
Input Format
Feet (ft)
Nautical (nm) or Statute (mi)
Nautical (kt) or Statute (mph)
Nautical (kt) or Statute (mph)
Magnetic
Feet/Minute
Inches (Hg)
None (Installations with an external
GPS antenna connected)
MapMx (Installations connected to a
GTN or GNS for GPS position)
None
None
None
None
None
None
None
RS-232
ARINC 429
Output Format
Output 1
Output 2
Input 1
Input 2
Input 3
Input 4
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7.5 G5 Calibration Procedures
Table 7-2 describes the calibration procedures to be performed for the G5 unit after maintenance is
performed.
Table 7-2: Calibration Procedure Summary
Calibration
Procedure
Procedure
Description
Procedure Name
A
Pitch/Roll Offset Compensation
Level aircraft
C
Air Data Static Pressure
Calibration
Altitude calibration
Requirement
Procedure A is required if a new
G5 unit is installed
Procedure C is recommended if
the G5 altimeter does not match
primary altimeter
7.5.1 Calibration Procedure A: Pitch/Roll Offset Compensation
NOTE
This procedure requires orienting the aircraft to normal flight attitude. This can be done by
using jacks or placing wood blocks under the nose-wheel, for example. As another example, if
the number of degrees ‘nose high’ the aircraft flies in straight and level cruise is known, a digital
level can be used to orient the aircraft to normal flight attitude prior to the calibration.
NOTE
The G5 must be leveled within 15.0° of the aircraft in-flight level cruise attitude. In-flight level
cruise attitude is not necessarily the same as the level reference provided by the manufacturer
(such as fuselage longerons).
1. Select the Attitude configuration page.
2. Select Calibrate Pitch/Roll.
3. Ensure that aircraft and the unit comply with all on-screen instructions then select Start.
4. A progress screen will then be displayed. There is a 30 second countdown timer for the procedure
that resets when the aircraft moves.
5. When the calibration is complete, a successful status message will be displayed along with the
new pitch and roll offsets.
7.5.2 Calibration Procedure C: Air Data Static Pressure Calibration
The Air Data configuration page has a selection for static pressure calibration. This procedure is used to
perform an altimeter re-calibration. The altitude pressure sensor used in the G5 is very low drift and does
not typically require re-calibration.
The static pressure calibration requires the use of a pressure control system (test set) with an altitude
accuracy of at least ±5 ft. at sea level and ±20 ft. at 30,000 ft. It is necessary to re-calibrate to sea level (0
ft.), 10,000 ft., 20,000 ft., and optionally to 30,000 ft. The operator is allowed to finish the calibration at
the end of the 20,000 ft. calibration if the aircraft operational ceiling is below 20,000 ft.
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CAUTION
To avoid damaging the G5 pressure sensors, both the pitot and static ports must be connected to
the test set.
1. Select the Air Data configuration page.
2. Select Calibrate Static Pressure.
3. Ensure all on-screen instructions have been complied with, then press Start.
4. At each calibration point the display will present a screen indicating the pressure altitude to set.
Once the altitude is set, select Ready to calibrate this pressure.
5. During the calibration at each pressure, the pressure must be held constant for 30 seconds for the
calibration step to be successful. The calibration may be cancelled at any point should the test
setup require adjustment before repeating. A progress screen will be displayed showing the status
of the test.
6. Select Done when the static pressure calibration is successfully completed.
7.6 Altimeter System Test
If the G5 unit is replaced, in aircraft that are IFR certified, perform an altimeter system test of the G5 in
accordance with 14 CFR Part 43 Appendix E.
8
SYSTEM RETURN TO SERVICE PROCEDURE
After all G5 configuration and testing is completed per Section 7, complete the following steps:
1. Apply power to the G5 unit.
2. If new software was updated, verify the correct software part number is displayed. To verify the
latest software version approved for this STC, visit www.Garmin.com and navigate to the
Aviation Product/General Aviation/Indicators/G5 page.
3. Verify the attitude is displayed and there are no invalid parameters (no red-X shown).
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