Garmin | G5 Electronic Flight Instrument for Certificated Aircraft | Garmin G5 Electronic Flight Instrument for Certificated Aircraft AFMS - G5 Electronic Flight Instrument Part 23 AML STC

Garmin G5 Electronic Flight Instrument for Certificated Aircraft AFMS - G5 Electronic Flight Instrument Part 23 AML STC
LOG OF REVISIONS
Description
Date of
Approval
Rev
Page
1
All
Original Issue
7/22/2016
2
All
Added information regarding G5 DG/HSI
4/28/2017
3
All
Added interface to 3rd party autopilots
10/18/2017
4
All
Added note to General section.
See Cover
AFMS, Garmin G5 AML STC
FAA Approval
Robert Murray
ODA STC Unit Administrator
Robert Murray
ODA STC Unit Administrator
Robert Murray
ODA STC Unit Administrator
See Cover
190-01112-13 Rev. 4
Page 2 of 10
TABLE OF CONTENTS
GENERAL........................................................................................................................... 4
LIMITATIONS ................................................................................................................... 4
SYSTEM SOFTWARE REQUIREMENTS ............................................................................................ 4
USE OF SECONDARY INSTRUMENTS .............................................................................................. 4
KINDS OF OPERATIONS ................................................................................................................. 4
EMERGENCY PROCEDURES........................................................................................ 5
EMERGENCY PROCEDURES ........................................................................................................... 5
SYSTEM MESSAGES ....................................................................................................................... 7
NORMAL PROCEDURES ................................................................................................ 8
G5 POWER BUTTON AND KNOB.................................................................................................... 8
BACKLIGHT INTENSITY ADJUSTMENT .......................................................................................... 8
PRIOR TO FLIGHT IN INSTRUMENT METEOROLOGICAL CONDITIONS ............................................. 8
AUTOPILOT OPERATIONS WITH THE G5 HSI ................................................................................. 9
PERFORMANCE ............................................................................................................. 10
WEIGHT AND BALANCE ............................................................................................. 10
SYSTEM DESCRIPTIONS ............................................................................................. 10
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 3 of 10
GENERAL
The G5 Electronic Flight Instrument can display the following information to the pilot depending on the installation
and location of the G5 instrument.
• Primary attitude
• Primary slip and turn rate information
• Primary heading
• Secondary airspeed
• Secondary altimeter
• Secondary ground track
When installed in place of the attitude indicator, the primary function of the G5 is to provide attitude information to
the pilot. When installed in place of the rate of turn indicator, the primary function of the G5 is to provide turn rate
and slip ball information to the pilot. When installed in place of the directional gyro, the primary function of the G5
is to provide directional information to the pilot.
NOTE:
The pilot is reminded to perform appropriate flight and navigation instrument cross checks for the
type of operation being conducted.
In case of a loss of aircraft electrical power, a backup battery (optional when installed as a DG/HSI) sustains the G5
Electronic Flight Instrument for up to four hours.
An optional GAD 29B may be installed to provide course and heading datum to an autopilot based on the data
selected for display on the HSI.
LIMITATIONS
System Software Requirements
The G5 must utilize the following or later FAA approved software versions for this AFMS revision to be applicable:
Component
G5 Electronic Flight Instrument
Software Version
4.00
Use of Secondary Instruments
The original type design approved instruments for airspeed, altitude and vertical speed remain the primary
indications for these parameters.
If the G5 Electronic Flight Instrument is installed in place of the rate of turn indicator, the original type design
approved instrument for attitude remains in the primary indication for attitude.
If the G5 Electronic Flight Instrument is installed in place of the directional gyro, the original type design approved
instruments for attitude remains the primary indication for attitude.
NOTE:
For aircraft approved for VFR-only operations, the G5 Electronic Flight Instrument may be
installed as an attitude indicator and rate of turn indicator.
Kinds of Operations
No Change.
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 4 of 10
EMERGENCY PROCEDURES
Emergency Procedures
3.1.1 G5 Failure Indications
If a G5 function fails, a large red ‘X’ is typically displayed over the instrument(s) or data experiencing the failure.
Upon G5 power-up, certain instruments remain invalid as equipment begins to initialize. All instruments should be
operational within one minute of power-up. If any instrument remains flagged and it is not likely an installation
related problem, the G5 should be serviced by a Garmin-authorized repair facility.
Attitude Failure
Attitude failure is indicated by removal of the sky/ground presentation, a red X, and a yellow “ATTITUDE FAIL” on
the display.
Rate-of-turn and slip information will not be available.
1.
2.
Use standby instruments.
Seek VFR conditions or land as soon as practical.
Heading Failure, Loss of Magnetometer Data, or Magnetic Field Error
A heading failure, loss of magnetometer data, or magnetic field error is indicated by removal of the digital heading
readout, a red X, and a yellow “HDG” on the display.
1.
Use standby magnetic compass.
NOTE:
If the G5 DG/HSI has a valid GPS signal the G5 DG/HSI instrument will display the GPS track
information in magenta.
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 5 of 10
GPS Failure
If GPS navigation receivers and/or navigation information are not available or invalid, the G5 will display Dead
Reckoning mode (DR) or Loss Of Integrity mode (LOI) on the HSI in the lower left corner.
If Alternate Navigation Sources (ILS, LOC, VOR) Are Available:
1.
Use alternate navigation source.
If No Alternate Navigation Sources Are Available:
If DR is Displayed on HSI:
1.
2.
Use the amber CDI for course information.
Fly toward known visual conditions.
If LOI is Displayed on HSI:
1.
Fly toward known visual conditions.
For aircraft equipped with a GAD 29B interfaced to an autopilot, GPSS will be displayed in amber text when GPSS
emulation has been selected from the G5 menu.
1.
Deselect GPSS from the G5 menu and select a different autopilot mode.
3.1.2 Attitude Aligning
During system initialization, the G5 displays the message ‘ALIGNING’ over the attitude indicator. The G5 will
typically display valid attitude within the first minute of power-up. The G5 can also align itself while taxiing and
during level flight.
If the “ALIGNING” indication occurs during flight and attitude remains displayed, the attitude display is acceptable
for use for flight in instrument conditions. The message will clear when the attitude solution is within the systems
internal accuracy tolerances. It is recommended to maintain wings level to reduce the time for the system to align.
3.1.3 Attitude Aligning / Keep Wings Level
If the “ALIGNING KEEP WINGS LEVEL” indication occurs during flight, the G5 has detected an invalid attitude
solution and will not display any attitude information.
1.
2.
Use standby instruments to maintain wings level flight. The system will display attitude when internal
accuracy tolerances have been met.
If attitude does not return, seek VFR conditions or land as soon as practical.
3.1.4 Loss of Electrical Power to the G5 Display
In the event of a loss of aircraft electrical power to the G5 attitude display, the indicator will continue to function on
its internal battery. If an internal battery is installed on the optional G5 HSI, the indicator will continue to function
on the internal battery if aircraft power is lost. Internal battery endurance is indicated on the G5 display in hours and
minutes. The charging symbol will be removed and the internal battery will not be charged.
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 6 of 10
3.1.5 Loss of Electrical Power to the GAD 29B (If Installed)
In the event of a loss of aircraft electrical power to the optional GAD 29B, the heading and course datum will be
unavailable to the autopilot and the autopilot may deviate from the intended path or may disconnect. GPS flight
plan course information may be displayed on the HSI and VFR will be displayed in amber text on the HSI. GPSS
will be displayed in amber text, if GPSS mode is selected.
1.
2.
Deselect GPSS from the G5 menu and select a different autopilot mode.
Lateral GPS course guidance may only be used in VFR conditions.
System messages
The G5 has the capability to display system messages to the crew along the bottom of the display. The following table
shows the meaning of each message. System messages are displayed in white text.
Message
External Power Lost
Critical battery fault!
Powering off…
Battery fault
Meaning
Aircraft power has been removed from the G5
Battery has critical fault condition and the unit is about to power off to avoid
damage to the battery.
Battery has a fault condition - contact Garmin if it persists.
Battery charger fault
Low battery
Hardware fault
Power supply fault
Unit temperature limit
exceeded
Network address
conflict
Communication error
Battery charger has a fault condition - contact Garmin if it persists.
Battery charge level is low
Unit has a hardware fault - contact Garmin for service
Unit power supply fault detected - contact Garmin for service if it persists
Unit is too hot or too cold
Factory calibration
data invalid
Magnetic field model
database out of date
Using external GPS
data
Another G5 with the same address is detected on the network (most commonly a
wiring error on one of the units)
General communication error (most commonly appears in conjunction with
Network Address Conflict message)
Unit calibration data not valid - return to Garmin
Internal magnetic field database is out of date - software update required
GPS data from another network LRU is being used. The unit's internal GPS
receiver is enabled, but unable to establish a GPS fix
No specific pilot action is required for any of the displayed system messages. As long as attitude is displayed, the
system is adequate for flight in instrument conditions.
These messages remain while the condition persists, or until cleared by pressing the knob.
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 7 of 10
NORMAL PROCEDURES
G5 Power Button and Knob
The G5 display will power on with the application of aircraft power. The G5 power button is used to turn the display
on and off. Press and hold the power button to turn the display off.
The knob performs the following functions:
Press to access the Menu
From the Menu, press to select the desired menu item.
Press
Press to accept the displayed value when editing numeric data or selecting from a list
Press to sync the heading or track bug for the HSI.
From the Menu, turn the Knob to move the cursor to the desired menu item.
For the ADI, rotate to adjust the baro setting on the secondary altitude display.
Turn
For the HSI, rotate to adjust the heading or track bug.
Turn to select the desired value when editing numeric data or selecting from a list.
Backlight Intensity Adjustment
The power up state of the G5 backlight is in Auto adjustment mode.
To adjust the backlighting:
To select Manual mode from Auto mode:
1.
2.
3.
While the unit is turned on, press the Power button.
Turn the knob to manually adjust the backlight intensity.
Press the knob to close the backlight page.
To select Auto mode from Manual mode:
1.
2.
3.
While the unit is turned on, press the Power button.
Press the Power button again to select Auto.
Press the knob to close the backlight page.
Prior to Flight in Instrument Meteorological Conditions
1.
2.
Press the Power button on the G5 attitude indicator.
Verify the battery status indicator is green on the G5 attitude indicator.
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 8 of 10
Autopilot Operations with the G5 HSI
The G5 and optional GAD 29B offer various integration capabilities dependent upon the type of autopilot installed
in a particular aircraft.
The G5 Electronic Flight Instrument installation in this aircraft provides the following autopilot functions
(appropriate boxes will be checked):
 This installation does not interface with the autopilot (basic wing leveling autopilot or no autopilot is
installed in the aircraft).
 A GAD 29B Adapter is installed in this aircraft.
 Course / NAV Selection coupling to the autopilot.
 Heading Bug coupling capability to the autopilot.
 Roll Steering (GPSS) emulated via heading mode.
OR
 Roll Steering capable autopilot (GPSS menu function for emulation not applicable).
4.4.1 Course / NAV Selection Coupling to the Autopilot (If Configured)
When operating the autopilot in NAV mode, the deviation information from the installed navigation sources (i.e.
GPS or NAV) is switched via the navigation source. The NAV source displayed on the HSI is the NAV source the
autopilot is following. Many autopilots also use the course datum to determine the best intercept angles when
operating in NAV mode.
4.4.2 Heading Bug Coupling Capability to the Autopilot (If Configured)
When operating the autopilot in HDG mode, the difference between the HDG bug location on the HSI and the actual
aircraft heading creates an error signal which the autopilot will minimize by turning in the direction of the bug. If the
bug is turned more than 180 degrees, the autopilot may turn the airplane in the opposite direction of the desired turn.
4.4.3 Roll Steering (GPSS) Emulated via HDG Mode (If Configured)
For autopilots that do not support digital GPSS signals, GPSS functionality may be emulated by operating the
autopilot in HDG mode and selecting GPSS from the G5 menu. If the autopilot is already designed to receive roll
steering information, the data is transmitted digitally from the navigator to the autopilot.
When GPSS is selected on the G5 menu, the heading bug on the HSI changes to a hollow outline and a crossed-out
heading bug appears on the G5 HSI display indicating that the autopilot is not coupled to the heading bug. The bug
is still controllable and may still be used for reference.
When GPSS is selected on the G5, GPSS turn commands are converted into a heading error signal to the autopilot.
When the autopilot is operated in HDG mode, the autopilot will fly the turn commands from the GPS navigator. If
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 9 of 10
the GPSS data is invalid (for example, if there is no active GPS leg) or the selected HSI source on the G5 HSI is not
GPS, the annunciated GPSS text will be yellow and a zero turn command will be sent to the autopilot.
PERFORMANCE
No change.
WEIGHT AND BALANCE
See current weight and balance data.
SYSTEM DESCRIPTIONS
Refer to Garmin G5 Pilot’s Guide P/N 190-01112-12 Revision 3 or later, for a description of the G5 electronic flight
instrument. This reference material is not required to be on board the aircraft but does contain a more in depth
description of all the functions and capabilities of the G5.
The ATT circuit breaker supplies power to the G5 instrument for normal power operation and to charge the internal
battery.
The DG circuit breaker supplies power to the G5 instrument for normal power operation when configured as a DG,
and to charge the internal battery (if installed).
The HSI circuit breaker supplies power to the G5 instrument for normal power operation when configured as an
HSI, and to charge the internal battery (if installed).
The GAD circuit breaker supplies power to the optional GAD 29 adapter for normal power operation.
AFMS, Garmin G5 AML STC
190-01112-13 Rev. 4
Page 10 of 10
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