Garmin | GNS 530W | Garmin GNS 530W 500W Series Instructions for Continued Airworthiness Bell 206B

Garmin GNS 530W 500W Series Instructions for Continued Airworthiness Bell 206B
500W Series
Instructions for Continued Airworthiness
Bell 206B
Reg. No.____________
S/N_______________
Dwg. Number:
190-01226-03 Rev. 5
Garmin International, Inc.
1200 E. 151st Street
Olathe, Kansas 66062 USA
Record of Revision
Rev.
Date
Description of Change
1
2
07/16/10
08/11/10
3
4
5
04/09/15
06/18/15
02/08/17
Initial Release
Updated ref. doc. revisions in section 2.1, revised part number and weight
of item 2 in table 2.2.1.
Add information for remote HTAWS annunciators
Updated Airworthiness Limitations section
Updated troubleshooting table section and interconnects to add GDL 88H
and GTX 3X5
Company Proprietary Information
This drawing and the specifications contained herein are the property of Garmin International or its
subsidiaries and may not be reproduced or used in whole or in part as the basis for manufacture or sale
of products without written permission.
Copyright  2010-2017 Garmin Ltd. or its subsidiaries. All rights reserved.
Garmin International, Inc.
1200 E. 151st Street
Olathe, Kansas 66062 U.S.A.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 2 of 23
1. INTRODUCTION................................................................................................................... 4
1.1 Purpose................................................................................................................. 4
1.2 Scope .................................................................................................................... 4
1.3 Document Control ................................................................................................. 4
1.4 Permission to Use Certain Documents ................................................................. 4
1.5 Definitions ............................................................................................................. 4
2. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS .................................................... 5
2.1 Introduction ........................................................................................................... 5
2.2 Description of Alteration........................................................................................ 6
2.3 Control, Operating Information ............................................................................. 8
2.4 Servicing Information ............................................................................................ 8
2.5 Periodic Maintenance Instructions ........................................................................ 8
2.6 Troubleshooting Information ................................................................................. 11
2.7 Removal and Installation Information ................................................................... 20
2.8 Diagrams............................................................................................................... 21
2.9 Special Inspection Requirements ......................................................................... 22
2.10 Application of Protective Treatments .................................................................... 22
2.11 Data Relative to Structural Fasteners ................................................................... 22
2.12 Special Tools ........................................................................................................ 22
2.13 Additional Instructions........................................................................................... 22
2.14 Overhaul Period .................................................................................................... 22
2.15 ICA Revision and Distribution ............................................................................... 22
2.16 Assistance............................................................................................................. 23
2.17 Implementation and Record Keeping ................................................................... 23
3. AIRWORTHINESS LIMITATIONS ........................................................................................ 23
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 3 of 23
1. INTRODUCTION
1.1
Purpose
This document is designed for use by the installing agency of the Garmin Model 500W series
GPS/WAAS Nav/Com as Instructions for Continued Airworthiness in response to Title 14 CFR Part
27.1529, Part 27 Appendix A. This ICA includes information required by the operator to adequately
maintain the Garmin 500W unit and additional equipment installed under STC SR02080SE.
1.2
Scope
This document identifies the Instruction for Continued Airworthiness for the Bell 206B series rotorcraft
modified by the installation of the Garmin Models 500W series GPS/WAAS Nav/Com unit and additional
equipment under STC SR02080SE.
1.3
Document Control
This document shall be released, archived, and controlled in accordance with the Garmin document
control system. When this document is revised, refer to Section 2.15 for information on how to gain FAA
acceptance or approval and how to notify customers of changes.
1.4
Permission to Use Certain Documents
Permission is granted to any corporation or person applying for approval of a Garmin Model 500W series
to use and reference appropriate STC documents to accomplish the Instructions for Continued
Airworthiness and show compliance with STC engineering data. This permission does not construe
suitability of the documents. It is the responsibility of the applicant to determine the suitability of the
documents for the ICA.
1.5
Definitions
The following terminology is used within this document:
1)
2)
3)
4)
5)
6)
7)
ACO: Aircraft Certification Office
AEG: Aircraft Evaluation Group
CFR: Code of Federal Regulations
FAA: Federal Aviation Administration
ICA: Instructions for Continued Airworthiness
PMI: Principle Maintenance Inspector
STC: Supplemental Type Certificate
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 4 of 23
2. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS
2.1
Introduction
Content, Scope, Purpose and Arrangement:
This document identifies the Instructions for
Continued Airworthiness for the modification of the
rotorcraft by installation of a 500W series
GPS/WAAS Nav/Com unit under the Garmin Bell
400W/500W HTAWS STC SR02080SE.
Applicability:
Applies to Bell model 206B rotorcraft altered by
installation of a 500W series GPS/WAAS Nav/Com
unit under the Garmin Bell 400W/500W HTAWS
STC SR02080SE.
Definition of Abbreviations:
See Section 1.5
Precautions:
None
Units of measurement:
None
Referenced publications:
Garmin 005-00610-03 Rev. 2 “Equipment List
400W/500W Series Installation Bell 206B STC” or
later FAA Approved Revisions
Garmin 190-01226-01 Rev. 3 “500W Series
Rotorcraft STC Installation Manual” or later FAA
Approved Revisions
Additional Maintenance Data:
Garmin 190-01226-07 Rev. 4 “400W/500W Series
Installation Bell 206B” or later FAA Approved
Revisions
Retention:
This document, or the information contained within,
will be included in the rotorcraft’s permanent
records.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 5 of 23
2.2
Description of Alteration
This STC upgrades existing avionics for the Bell 206B rotorcraft as summarized below.
The Garmin Model 500W Series GPS/WAAS Nav/Com unit is a 6 ¼ inch wide unit mounted in the center
pedestal of the Bell 206B. The 500W Series units combine a large number of easily accessible controls
to use the color multi-function display, Nav and Com transceiver, GPS/WAAS navigator in a single unit.
A GPS/WAAS antenna is installed on the top of the Bell 206B forward engine cowl. A monitored avionics
cooling fan is installed in the center pedestal with a fan fail fault annunciation located in the existing Bell
206B annunciator panel.
Installation of optional remote HTAWS annunciators, and optional cyclic stick switches for remote control
of COM and HTAWS functions are also covered under this STC.
The 500W Series unit can interface to the Garmin G500H system GDU 620 PFD/MFD for display of
navigation information and HTAWS annunciation.
Rotorcraft modified under this STC are restricted to VFR only, including rotorcraft that may not have
previously been restricted to VFR. To clarify this operation limitation, a placard with the text,
“APPROVED FOR DAY/NIGHT VFR” is required to be in the pilot’s view.
The installed equipment is connected to an avionics bus that receives power as soon as the battery and
avionics master switches are turned on. Circuit breakers are installed on an overhead circuit breaker
panel as shown below. Note: dual navigator system installation as shown.
The installed 500W Series equipment can be accessed as described below:
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 6 of 23
LRU Access: Bell models 206B
1. GA 35/36/37 ANTENNA: FS80.0 remove by extracting the four mounting screws in the body of
the antenna. Note: location may vary slightly depending whether or not a dual navigator system is
installed.
2. OVERHEAD CIRCUIT BREAKER PANEL: FS61.0, WL 71.0 Access or remove by extracting the
mounting screws along the side of the circuit breaker panel.
3. CYCLIC CONTROL GRIPS: remove by extracting mounting screw at bottom of grip.
4. COOLING FAN: FS28.5 Access by removing copilot side (LH) cover plate. Remove by extracting
three mounting screws and disconnecting connector.
5. 500W SERIES UNIT: FS38.0 Access or remove by using a 3/32 allen head screwdriver to loosen
the locking mechanism through the access hole on the front of the unit. Note: location may vary
slightly depending whether or not a dual navigator system is installed.
2.2.1 Weight and Balance Information
ITEM DESCRIPTION
GPS 500W (Unit Only)
GPS 500W (Installed with rack and back plate)
GNS 530W (Unit Only)
1
GNS 530W (Installed with rack and back plate)
GNS 530AW (Unit Only)
GNS 530AW (Installed with rack and back plate)
2 GCF 3XX 3‐Port Cooling Fan (Unit Only)
GA 35 GPS/WAAS Antenna (Unit Only)
3 GA 36 GPS/WAAS Antenna (Unit Only)
GA 37 GPS/WAAS + XM Antenna (Unit Only)
PART
NUMBER
011‐01062‐XX
011‐01064‐XX
011‐01066‐XX
013‐00103‐00
013‐00235‐00
013‐00244‐00
013‐00245‐00
Moment ARM [IN]
WEIGHT
[LB] LONGITUDINAL LATERAL
5.7
6.8
7.0
40.25
0.0
8.2
7.0
8.2
0.70
31.22
‐3.00
0.47
73.50/78.50
0.0/±5.0
0.47
(Single/Dual (Single/Dual
Installation)
Installation)
0.50
[1] A rotorcraft weight and balance is required after installation of the 500W Series Unit. Refer to the
500W Rotorcraft STC Installation Manual listed in paragraph 2.1 of this document, for additional
information, including overall size and center of gravity location of all LRUs.
[2] The longitudinal arm is measured in terms of the fuselage station (FS) number.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 7 of 23
[3] The lateral arm is measured in terms of the butt line (BL). The centerline of the helicopter is BL0.00.
The moment arms to the left side (looking forward) are negative (-) and the moment arms to the right
side are positive (+).
[4] Location of the 500W Series unit and GPS antenna may vary slightly depending whether or not a
dual navigator system is installed.
2.3
Control, Operating Information
See the Pilot’s Guides or the 500W Rotorcraft STC Installation Manual for system operation and self-test
information. The 500W Rotorcraft STC Installation Manual is listed under the reference documentation in
paragraph 2.1 of this document, and the Pilot’s Guides are listed in the related documents section of the
500W Rotorcraft STC Installation Manual.
2.4
Servicing Information
None. In the event of system failure, troubleshoot the 500W Series unit in accordance with Section 2.6.
2.5
Periodic Maintenance Instructions
The 500W Series units are designed to detect internal failure. A thorough self-test is executed
automatically upon application of power to the units, and built-in test is continuously executed. Detected
errors are indicated on the equipment via failure annunciations.
Maintenance of the components installed by this STC is on condition, except as noted in the following
table.
Table 1 Periodic Maintenance Inspections
Item
Interval
Description/Procedure
500W Series
Unit
12 Months
Conduct a visual inspection (look for signs of wear, deterioration,
or damage to wires, backshells, or connectors) of the 500W
Series unit and wiring harnesses to ensure installation integrity:
1. Inspect the unit for security of attachment.
2. Inspect all knobs and buttons for legibility.
3. Inspect condition of wiring, routing and
attachment/clamping.
4. Inspect related antennas for proper sealing and attachment.
5. Inspect integrity of shield terminations.
6. Inspect for signs of corrosion on equipment, racks and it’s
backplates and rack mounting.
500W Series
Mounting Rack
12 Months
Inspect the mounting rack for any signs of excessive wear,
corrosion, or damage. Check mounting rack corners for cracks.
Check integrity of connector plate attachment to the back of
mounting rack. Check the tightness of fasteners attaching
mounting rack to rotorcraft structure and re-torque 12 to 15 in-lbs
if required.
Replace unit mounting rack if any damage has been found.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 8 of 23
Avionics
Cooling Fan
12 Months
Conduct a visual inspection (look for signs of wear, deterioration,
or damage to wire harness and connector) of the cooling fan to
ensure installation integrity. Inspect for signs of corrosion on
equipment and mounting brackets.
500W Series
Mounting Rack
Every 2000
flight hours or
ten (10)
years,
whichever is
first
Perform an electrical bonding test:
1. Remove 500W Series unit from mounting rack
2. Measure the resistance between the mounting rack and a
nearby exposed portion of aircraft metallic structure and
verify it is less than 10 milliohms.
In the event of a bonding test failure, remove the rack and verify
that the countersunk areas around the holes that are used to
attach the rack are free of corrosion or other debris. Clean
countersunk areas using an approved solvent per Bell
specification BHT-ELEC-SPM CHP8. Reattach the rack and reverify the resistance between the mounting rack and nearby
exposed portion of aircraft metallic structure and ensure that the
resistance is less than or equal to 2.5 milliohms.
Reinstall the 500W Series unit in the mounting rack.
GPS Antennas
(Only if antenna
is installed by
this STC)
Every 2000
flight hours or
ten (10)
years,
whichever is
first
Perform an electrical bonding test on antennas installed by this
STC:
1. Disconnect coaxial cable(s) from the antenna connector(s).
2. Measure the resistance between the antenna connector and
a nearby exposed portion of the antenna foil ground plane.
3. Verify the resistance is equal to or less than 10 milliohms.
4. Reconnect the coaxial cable(s) to the antenna connector(s)
and ensure it is secured.
In the event of bonding test failure, remove antenna, and clean
and prepare the hardware mating surfaces as follows:
Clean countersunk areas of the antenna. Clean countersunk
areas using an approved solvent per Bell Specification BHTELEC-SPM, CHP 8.
Reinstall using unit replacement procedures contained in the
installation drawing listed in paragraph 2.1 of this document. Any
reworked antenna installation shall have a resistance of less than
or equal to 2.5 milliohms.
HTAWS
Annunciators (if
installed)
Every 2000
flight hours or
ten (10)
years,
whichever is
first
Perform an electrical bonding test:
1. Measure the resistance between the metallic body of each
Vivisun annunciator and the console assembly and verify
that the resistance is less than or equal to 20 milliohms.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 9 of 23
In the event of bonding test failure:
1. Inspect the grounding strap which is installed between the
annunciator and the instrument panel. Ensure that the
fastener hardware is secure and that the strap is not
damaged. If damaged, replace the bonding strap.
2. If problem persists, remove the bonding strap and clean the
mating surfaces of the bonding strap and
annunciator/instrument panel per Bell specification BHTELEC-SPM CHP8.
3. Reinstall the bonding strap and verify that the resistance
between the annunciators and the console assembly after
prepping bonding surface is less than 10 milliohms.
2.5.1 Cleaning the Front Panel
The front bezel, keypad, and display can be cleaned with a soft cotton cloth dampened with clean water.
DO NOT use any chemical-cleaning agents. Care should be taken to avoid scratching the surface of the
display.
2.5.2 Display Backlight
The display backlight lamp is rated by the manufacturer as having a usable life of 20,000 hours. This life
may be more or less than the rated time depending on the operating conditions of the 500W Series unit.
Over time, the backlight lamp may dim and the display may not perform as well in direct sunlight
conditions. The user must determine by observation when the display brightness is not adequate.
Contact the Garmin factory repair station when the backlight lamp requires service.
2.5.3 Battery Replacement
The 500W series has an internal keep-alive battery that will last about 10 years. The battery is used for
GPS system information. Regular planned replacement is not necessary. The 500W series will display a
‘low battery’ message when replacement is required. Once the low battery message is displayed, the
battery should be replaced within 1 to 2 months.
If the battery is not replaced and becomes totally discharged, the 500W Series unit will remain fully
operational, but the GPS signal acquisition time may be increased. This acquisition time can be reduced
by entering a new seed position each time the unit is powered on. There is no loss of function or
accuracy of the 500W Series unit with a dead battery.
The battery must be replaced by the Garmin factory repair station or factory authorized repair station.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 10 of 23
2.6
Troubleshooting Information
If error indications are displayed on the 500W series unit, consult the Troubleshooting section contained
below:
Table 2 Troubleshooting Guide
Problem
Possible Cause
Solution
The 500W Series
unit does not power
on.
 The unit is not getting power to 
the main connector P5001.
Make sure power is connected to the
main 78-pin connector P5001, pins
19 and 20 and ground to P5001, pins
77 and 78. Check circuit breakers
and main avionics switch.
The 500W Series
unit does not
compute a position.
 Not receiving signals.

Check the GPS antenna connections.
Make sure the aircraft is clear of
hangars, buildings, trees, etc.

Wait 20 minutes for unit to complete
cycle.

Turn all avionics off, then turn on
each piece one at a time to isolate
the source of the interference. Route
GPS cable and locate GPS antenna
away from sources of interference.
GPS signal levels
drop when avionics
are turned on.
 Noise interference from other
avionics.
The GPS signal
levels are very low.
 Improper antenna installation or 
coax routing.
Check GPS antenna installation,
connections, and cable routing. The
GPS antenna must be mounted on
the top of the aircraft.
 Antenna shaded from satellites. 
Make sure the aircraft is clear of
hangars, buildings, trees, etc.
 RF interference at 1575.42
MHz from VHF COM.

Move GPS antenna further from the
COM antenna. Add a 1575.42 MHz
notch filter in COM coax. Fix or
replace the COM. Disconnect the
ELT antenna coax to check for
possible re-radiation.
 The PTT input is not being
pulled low.

Check that the PTT (mic key) input is
pulled low for transmit.
The 500W Series
unit does not
transmit.
 No transmit power to the COM. 
Make sure power input is connected
to the COM 25-pin connector P5002
11 and 12 and ground to P5002 21
and 22.
 The input voltage is too low.

Increase input supply voltage to
>12VDC. (>24VDC for 530AW
models)
The sidetone level is  Wrong type of headsets, or
too low or too high.
level needs adjustment.

OBS Resolver won’t  Incompatible resolver or
calibrate.
improper connection.

If necessary, adjust the sidetone
level. Sidetone adjustment is found
on the COM Setup page.
Check the resolver specifications and
wiring.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 11 of 23
Problem
Possible Cause
Solution
OBS indication on
500W Series unit
does not agree with
OBS setting.
 500W Series unit resolver input 
not calibrated correctly.
500W Series unit is
not receiving
heading from
compass system
(ARINC 429
heading input used)
 ARINC 429 input port speed
not correct

Check ARINC 429 input port speed
setting for port that device is
connected to and verify that the
speed is correct for that device.
 Wiring connections are
incorrect.

Check wiring.

Check the OBI source selection on
the Main CDI/OBS Config page.
 Wiring connections are
incorrect.

Check wiring.
 Incorrect configuration.

Check the DME Channel Mode on
the VOR/LOC/GS CDI page.
 Wiring connections are
incorrect.

Check wiring.
 Resolver has not been
calibrated.
RMI pointer does
 Desired RMI source has not
not indicate correctly
been selected.
Tuning data not
updating DME
ARINC 429 device
 500W Series unit ARINC 429

is not receiving data
output not configured correctly.
from the
 ARINC 429 input port speed

500W/530W.
not correct
RS-232 device is
not communicating
with the
500W/530W.
Fan Fail
Annunciation.
Check wiring and calibration.
 Wiring connections are
incorrect.
 500W Series unit RS-232 port
not configured correctly.
 Improper setup on the remote
device.
 Device not compatible, or
improper connection.
 Multiple TX lines connected
together.
 Wiring connections are
incorrect.
 Wiring connections are
incorrect.
 Fan has failed.
500W Series
Instructions for Continued Airworthiness Bell 206B
Check ARINC 429 output port setting
for port that device is connected to.
Check ARINC 429 input port speed
setting for port that device is
connected to and verify that the
speed is correct for that device.

Check wiring.


Check RS-232 port setting for port
that device is connected to.
Verify the configuration of the other
device.
Verify 500W Series unit RX is
connected to remote device TX and
500W Series unit TX is connected to
remote device Rx.
Verify that there is only one TX
source per RX port.
Check wiring.

Check wiring.

Replace fan.



190-01226-03 Rev. 5
Page 12 of 23
2.6.1 500W Series Alerts
The 500W Series will display a number of alerts. These are listed in the following table.
Table 3. 500W Series Alert Troubleshooting Guide
Alert Text
Possible Cause
ADS-B traffic has failed
 The ADS-B traffic system may have
lost GPS position or detected an
internal fault.
ADS-B transmit has
failed
 ADS-B unit is not able to transmit a
message due to a failure with the
ADS-B system or antenna(s).
ADS-B is not
transmitting position
 The ADS-B unit has detected a
position input fault.
ADS-B fault - Check
ADS-B Status Page
 An equipment fault has been detected.
 The GNS is configured for a traffic
device but is not receiving data from it.
Traffic will not be displayed on the
GNS.
ADS-B Traffic Alerting
 The ADS-B traffic system is reporting
not available
that the CSA application has failed.
Traffic alerting on ADS-B traffic is
unavailable.
Airport terrain database  The 500W Series unit has detected a
integrity error
problem with a database on the
Terrain data card. The message
“<database name> database integrity
error” indicates the data base in error.
Audio database error
 The 500W-series unit has detected a
out of date or missing
problem with the built-in HTAWS
Audio Data-base. HTAWS audio
alerts are not available.
Aviation database
 The 500W Series unit has detected a
integrity error
problem with a database on the
NavData® card. The message
“<database name> database integrity
error” indicates the data base in error.
Basemap database
 The 500W Series unit has detected a
integrity error
failure in the built-in basemap (land
data) database. Land data does not
appear on the Map Page. Other unit
functions continue to work normally.
Boot block verify failed -  System integrity testing has
Return unit for repair
determined that the boot block has
become corrupted.
ADS-B - Connection
has been lost
500W Series
Instructions for Continued Airworthiness Bell 206B
Solution
 Check the applicable ADS-B
traffic source status page in
Aux mode
 Contact Garmin technical
support.
 Check system and antenna
wiring. If problem persists
contact Garmin technical
support.
 Verify GPS position source is
functional. If problem persists
contact Garmin technical
support.
 Contact Garmin technical
support.
 Verify traffic system is
configured correctly. If
problem persists contact
Garmin technical support.
 Ensure the aircraft has a clear
view of the sky. If problem
persists contact Garmin
technical support.
 The data is not usable, try
reloading the information onto
the card. If that does not
solve the problem replace the
card.
 Contact Garmin technical
support.
 The data is not usable, try
reloading the information onto
the card. If that does not
solve the problem replace the
card.
 Reload the Basemap
database
 Contact Garmin technical
support.
190-01226-03 Rev. 5
Page 13 of 23
Alert Text
CDI key stuck
CDI key disabled
Check unit cooling
COM has failed (530W
only)
Possible Cause
 The CDI key is stuck in the enabled
(or “pressed”) state. Try pressing the
CDI key again to cycle its operation.
 “Ignore CDI key” has been selected on
the MAIN CDI/OBS CONFIG page.
 The 500W Series unit has detected
excessive display backlighting
temperature. The backlighting has
been automatically dimmed to reduce
the temperature.
 The unit has detected a failure in its
communications transceiver.
COM is not responding
(530W only)
 Internal system-to-system
communication between the main
processor and the COM transceiver
has failed. Operational status of the
COM transceiver is unknown.
COM needs service
(530W only)
 The unit has detected a failure in its
communications transceiver. The
COM transceiver may still be usable.
 The external push-to-talk (PTT) switch
is stuck in the enabled (or “pressed”)
state.
 Wiring is incorrect.
 The remote COM transfer switch is
stuck in the enabled (or “pressed”)
state.
COM push-to-talk key
stuck (530W only)
COM remote transfer
key is stuck (530W
only)
Solution
 Contact Garmin technical
support.
 Go to the MAIN CDI/OBS
CONFIG page and deselect
“Ignore CDI key”
 Check for adequate ventilation
or check cooling airflow. Refer
to Section 2.7 of the
Installation Manual.
 Contact Garmin technical
support.
 Contact Garmin technical
support. If the COM board is
still working, it will
automatically tune to 121.500
MHz. Transmit and receive
functions may still operate
regardless of the displayed
frequency.
 Contact Garmin technical
support
 Try pressing the PTT switch
again to cycle its operation.
 Check Wiring
 Try pressing the switch again
to cycle its operation.
 Verify the wiring is correct.
 If the message persists,
contact Garmin technical
support.
COM transfer key stuck  The COM flip-flop key is stuck in the
(530W only)
enabled (or “pressed”) state.
COM transmitter power
has been reduced
(530W only)
Configuration error Config service req’d
 The unit has detected excessive unit
temperature. The COM transceiver
transmit power has been automatically
reduced to compensate for the
condition.
 Insufficient voltage level
 The configuration information has
been lost or corrupted.
500W Series
Instructions for Continued Airworthiness Bell 206B
 Try pressing the switch again
to cycle its operation.
 If the message persists,
contact Garmin technical
support.
 Check for adequate ventilation
or check cooling airflow.
Refer to Section 2.7 of the
Installation Manual.
 Check the input voltage
 Reconfigure the unit
190-01226-03 Rev. 5
Page 14 of 23
Alert Text
Possible Cause
Data transfer cancelled
(crossfill is busy)
 An attempt to transfer flight plan data
during a unit-to-unit crossfill was
cancelled.
Data transfer cancelled
(data invalid)
 An attempt to transfer a single user
waypoint during a unit-to-unit crossfill
was cancelled. No waypoint was
specified on the Crossfill Page.
 An attempt to transfer data during a
unit-to-unit crossfill was cancelled.
The database versions of the two
500W-series unit are not identical.
 An error was detected during unit-tounit crossfill of user data (user
waypoints and/or flight plans).
Data transfer cancelled
(version mismatch)
Data transfer error,
please
re-transmit
Display backlight failure  The 500W Series unit has detected a
failure in the display backlighting.
Do not use for
 The 500W Series unit is in Demo
navigation
Mode and must not be used for actual
navigation.
G/S has failed
 The unit has detected a failure in its
(530W only)
glideslope receiver.
G/S is not responding
(530W only)
G/S needs service
(530W only)
GDL 69 is not
responding
GDL 88 ADS-B traffic
has failed
GDL 88 Traffic Alerting
not available
GDL 88 Connection
has been lost
Solution
 The host unit is busy. Wait
until any previous crossfill
operation is complete, before
reattempting the transfer.
 Select a user waypoint and reattempt the transfer.
 If necessary, update the
database(s) so they match.
 The data transfer should be
re-attempted.
 Contact Garmin technical
support.
 Check that the DEMO MODE
SELECT pin, P5001 Pin 75, is
not connected.
 Contact Garmin technical
support.
 Internal system-to-system
communication between the main
processor and the glideslope receiver
has failed. Operational status of the
glideslope receiver is unknown.
 The unit has detected a failure in its
glideslope receiver. The glideslope
receiver may still be usable.
 No data is being received from the
GDL 69.
 Contact Garmin technical
support.
 The GDL 88 is reporting that it has a
problem processing ADS-B traffic
data. The traffic picture may be
degraded.
 The GDL 88 is reporting to the GTN
that the CSA application has failed.
Traffic alerting on ADS-B traffic is
unavailable.
 The GNS unit cannot communicate
with the datalink
 Refer to the GDL 84H/88H
STC Installation Manual.
500W Series
Instructions for Continued Airworthiness Bell 206B
 Contact Garmin technical
support.
 Check for proper configuration
 Check wiring
 Contact Garmin technical
support.
 Ensure the aircraft has a clear
view of the sky. If problem
persists contact Garmin
technical support.
 Check for proper configuration
 Ensure the GDL 88 is
powered up
 Check wiring
 Check the GDL 88 status
page in Aux mode
190-01226-03 Rev. 5
Page 15 of 23
Alert Text
Possible Cause
GDL 88 ADS-B transmit  The GDL 88 is not able to transmit an
has failed
ADS-B message due to a failure with
the GDL 88 system or antenna(s)
GDL 88 ADS-B is not
 The GDL 88 has detected a position
transmitting position
input fault
GDL 88 ADS-B fault Check GDL 88 Status
Page
 The GDL 88 has detected an
equipment fault
 GPS antenna cable is shorted
GPS is not responding
– check GPS antenna
(main software version
3.20 and later).
GPS needs service
GTN transfer canceled,
version mismatch
Insufficient Terrain
Database Resolution
Large magnetic
variance
Loss of integrity —
cross-check NAV
 Internal system-to-system
communication between the main
processor and the GPS receiver has
failed. Operational status of the GPS
receiver is unknown.
 The 500W Series unit has detected a
failure in its GPS receiver.
 The protocol version or database
version don’t match between the GTN
and GNS units
 The installed terrain database does
not have sufficient resolution to
support HTAWS
 A valid value of magnetic variation is
not available for this location.
 Verify all course angles
 Improper antenna installation or coax
routing
 Antenna shaded from satellites
Solution
 Refer to the GDL 84H/88H
STC Installation Manual
 Refer to the GDL 84H/88H
STC Installation Manual
 Check the GDL 88 status
page in Aux mode
 Refer to the GDL 84H/88H
STC Installation Manual
 Verify that the center
conductor is not shorted to the
braid in the coaxial cable.
 Contact Garmin technical
support.
 Contact Garmin technical
support.
 Load the most current cycles
of the navigation database to
each unit
 Load a 6 arc second terrain
database
 Contact Garmin technical
support.
 Check GPS antenna
installation, connections, and
cable routing. The GPS
antenna must be mounted on
the top of the aircraft.
 Make sure the aircraft is clear
of hangars, buildings, trees,
etc.
 RF interference at 1575.42 MHz from
VHF COM.
 Move GPS antenna further
from the COM antenna. Add a
1575.42 MHz notch filter in
COM coax. Fix or replace the
COM. Disconnect the ELT
antenna coax to check for
possible re-radiation.
Low Battery - Unit
Needs Service
 Time data may have been lost due to
a memory battery failure.
 Contact Garmin technical
support.
MAIN processor
requires service
 The 500W Series unit has detected a
failure in the main system processor.
 Contact Garmin technical
support.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 16 of 23
Alert Text
Possible Cause
Solution
 No altitude data is being received from
RS-232 (Serializer: Icarus, Rosetta or
Shadin) or grey code inputs.
No basemap data
 The 500W Series unit has detected a
available
failure in the built-in basemap (land
data) memory. Land data does not
appear on the Map Page. Other unit
functions continue to work normally.
Not receiving input data  No data has been received on the
on 429 Channel #1 or
ARINC 429 channel #1 connection for
#2
a period exceeding five seconds.
 Refer to Table 2 “RS-232
device is not communicating
with the 500W/530W”.
 Contact Garmin technical
support to reload the basemap
data.
Not receiving input data  No data has been received on one (or
on 232 Channel #(1
more) of the RS-232 channel
through 5)
connections for a period exceeding
ten seconds.
Not receiving traffic
 No traffic data is being received.
data
 Refer to Table 2 “RS-232
device is not communicating
with the 500W/530W”
No altitude input is
being received
NRST key stuck (GPS
500 only)
 The NRST key is stuck in the enabled
(or “pressed”) state.
OBS key stuck
 The OBS key is stuck in the enabled
(or pressed) state. Try pressing the
OBS key again to cycle its operation.
 No destination waypoint has been
selected.
OBS not available
 The GPS receiver cannot currently
determine its position.
Obstacle database
integrity error
 The 500W Series unit has detected a
problem with a database on the
Terrain data card.
RAIM position warning
 Although sufficient GPS satellite
coverage may exist, Receiver
Autonomous Integrity Monitoring
(RAIM) has determined the
information from one or more GPS
satellites may be in error.
 The 500W Series unit is searching the
sky for GPS satellites.
Searching the sky
Stored data was lost
 All user waypoints, flight plans and
system settings have been lost due to
a memory battery failure or system
reset.
500W Series
Instructions for Continued Airworthiness Bell 206B
 Refer to Table 2 “ARINC 429
device is not receiving data
from the 500W/530W”
 Check for proper configuration
 Check the wiring
 Contact Garmin technical
support.
 Try pressing the NRST key
again to cycle its operation. If
problem persists contact
Garmin technical support.
 Contact Garmin technical
support.
 Select a waypoint
 Refer to Table 2 “The 500W
Series unit does not compute
a position.”
 The data is not usable. Try
reloading the information onto
the card. If that does not
solve the problem replace the
card.
 Wait for GPS satellite
geometry to improve.
 Wait 20 minutes for unit to
complete cycle or until the
current position is located.
 If system was not reset
contact Garmin technical
support.
190-01226-03 Rev. 5
Page 17 of 23
Alert Text
TAWS has failed
Possible Cause
 The 500W Series unit has detected a
failure in its TAWS system.
TAWS inhibit key stuck
 The external TAWS inhibit key is
stuck.
TAWS mute caution
key is stuck
 The external HTAWS aural
suppression input is stuck
TAWS reduced
protection key is stuck
 The external TAWS reduced
protection key is stuck
TERRAIN configuration  The current Terrain configuration is
conflict
not supported by the hardware.
TERRAIN configuration
has changed
 The unit’s terrain settings have
changed since it was last turned on
in normal mode.
Terrain database
integrity error
 The 500W Series unit has detected a
problem with a database on the
Terrain data card.
TERRAIN has failed
 The unit has detected a failure in the
terrain system.
Traffic device has failed  The 500W Series unit cannot
communicate with the traffic system
and/or the traffic system is reporting a
system failure.
Traffic device needs
service
 The traffic device is reporting a system
failure.
User card format
unknown
 A data card has been inserted, but the
format of the card is not recognized.
500W Series
Instructions for Continued Airworthiness Bell 206B
Solution
 Ensure that terrain database
is inserted in right most card
slot.
 Reload the terrain database.
 Contact Garmin technical
support.
 Verify that the wiring is not
shorted to ground.
 Contact Garmin technical
support.
 Try pressing the TAWS mute
key again to cycle its
operation. If problem persists
contact Garmin technical
support.
 Try pressing the TAWS
reduced protection key to
cycle its operation. If the
problem persists contact
Garmin technical support.
 Reconfigure the unit.
 Reconfigure TERRAIN
settings
 Contact Garmin technical
support
 Reloading the information
onto the card.
 Replace the card.
 Ensure that Terrain database
is inserted in the right most
card slot.
 Reload the TERRAIN
database.
 Contact Garmin technical
support.
 Check for proper configuration
 Check for correct wiring
 Refer to the Traffic system
installation manual.
 Refer to the Traffic system
installation manual.
 Reload the information onto
the card. If that does not
solve the problem replace the
card.
190-01226-03 Rev. 5
Page 18 of 23
Alert Text
Possible Cause
Solution
 The GNS 530W has detected a failure
in its VLOC receiver.
 Contact Garmin technical
support.
VLOC is not responding  Internal system-to-system
(530W only)
communication between the main
processor and the VLOC receiver has
failed. Operational status of the VLOC
receiver is unknown.
VLOC needs service
 The unit has detected a failure in its
(530W only)
VLOC receiver. The VLOC receiver
may still be usable.
VLOC remote transfer
 The remote VLOC transfer switch is
key is stuck (530W
stuck in the enabled (or “pressed”)
only)
state.
 Contact Garmin technical
support.
VLOC has failed (530
only)
VLOC transfer key
stuck
(530W only)
 The VLOC flip-flop key is stuck in the
enabled (or “pressed”) state.
Stormscope device has  The 400W- Series unit cannot
failed
communicate with the WX-500.
 The WX-500 is reporting a system
failure.
Stormscope heading
has failed
 The WX-500 is reporting invalid
heading data.
500W Series
Instructions for Continued Airworthiness Bell 206B
 Contact Garmin technical
support.
 Try pressing the switch again
to cycle its operation.
 Contact Garmin technical
support.
 Try pressing the VLOC flipflop key again to cycle its
operation.
 Contact Garmin technical
support.
 Check for proper configuration
 Check the wiring
 Refer to the WX-500
installation manual for
additional troubleshooting
information.
 Check for proper configuration
of WX-500
 The failure may be within the
WX-500 or other connected
equipment.
190-01226-03 Rev. 5
Page 19 of 23
2.7
Removal and Installation Information
If any work has been done on the rotorcraft that could affect the system wiring, antenna cable, or any
interconnected equipment, verify the 500W Series unit power-up self-test sequence is successfully
completed and no failure messages are annunciated.
Whenever removing or installing units, remove power from the LRU by removing rotorcraft power or
opening the LRU circuit breaker.
2.7.1 500W Series Unit
2.7.1.1 Removal
1. Insert a 3/32-inch hex drive tool into the access hole at the bottom of the unit face.
2. Rotate the hex tool counterclockwise until the unit is forced out about 3/8 inches and can be
freely pulled from the rack.
2.7.1.2 Installation
1. Slide the 500W unit in the rack straight in until it stops, about 1 inch short of the final position.
2. Insert the hex drive tool into the access hole at the bottom of the unit face.
3. Rotate the hex tool clockwise while pressing on the left side of the bezel until the unit is firmly
seated in the rack.
NOTE
The installation configuration and user settings are stored internally in the 500W Series
unit, and will be lost when the 500W Series is replaced with a new unit.
Original 500W Series unit is Reinstalled
If the original 500W Series is reinstalled, then no configuration is required.
New, Repaired or Exchange 500W Series is Installed
If the 500W Series unit is removed for repair and reinstalled, or if the 500W unit is removed and replaced
with a different 500W Series unit, then verify the correct software versions are on the 500W Series unit
as specified in the Equipment List 400W/500W Series Installation Bell 206B STC listed in paragraph 2.1
of this document. In addition, complete the ‘Post Installation Configuration & Checkout Procedures’
contained in the 500W Rotorcraft STC Installation Manual listed in paragraph 2.1 of this document to
restore the proper installation configuration settings.
2.7.1.3 Return to Service
After removing and reinstalling the 500W Series unit per the instructions above, verify that the power-up
self-test sequence is successfully completed and no failure messages are annunciated.
Note: There are no special handling requirements for the 500W Series units.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 20 of 23
2.7.2 GA 35 GPS, GA 36 GPS, and GA 37 GPS/XM Antennas
2.7.2.1 Removal
1. Remove the screws from the outside of the rotorcraft.
2. Remove old sealant.
3. Lift the antenna off the rotorcraft and detach the coax (from the outside). If a GA 37 antenna
verify coax(s) are properly labeled with correct color band. Note: GPS coax is labeled with a blue
band and XM cable with a yellow band.
2.7.2.2 Installation
For GA 35, GA 36, or GA 37 GPS antenna installation, follow the installation procedures contained in the
installation drawing listed in paragraph 2.1 of this document.
2.7.2.3 Return to Service
After removing and reinstalling the GPS antenna, verify the 500W Series unit power-up self-test
sequence is successfully completed and no failure messages are annunciated. If the unit is unable to
acquire satellites, move the rotorcraft away from obstructions which might be shading GPS reception. If
the situation does not improve, check the GPS antenna installation.
2.7.3 Cooling Fan
2.7.3.1 Removal
1. Extract the screws from the copilot side (LH side) center console cover plate.
2. Remove copilot side (LH side) center console cover plate.
3. Disconnect cooling fan electrical connector located under cooling ports on fan.
4. Extract the three (3X) cooling fan mounting screws to remove cooling fan.
2.7.3.2 Installation
1. Install cooling fan using removed hardware.
2. Reconnect electrical connector to cooling fan.
3. Reinstall center console cover plate using removed hardware, verifying silicone sponge foam
used to seal cooling fan intake remains in place on center console cover plate and properly
seals the fan intake to the louver installed on the center console cover plate.
2.7.3.3 Return to Service
After removing and reinstalling the cooling fan verify proper operation of the cooling fan. Apply power to
the avionics, verify the cooling fan is operating and the FAN FAIL light on the annunciator panel is not
illuminated.
2.8
Diagrams
Rotorcraft specific LRU locations and wire routing diagrams are contained in the 400W/500W Series
Installation drawing Bell 206B, listed in Section 2.1 of this document. Point to point wiring diagrams are
in the Appendix of the 500W Rotorcraft STC Installation Manual. Refer to the GNS 500W Series PostInstallation Checkout Log retained in the rotorcraft permanent records for a list of the interfaced
equipment and port configurations.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 21 of 23
2.9
Special Inspection Requirements
2.9.1 Post-Lightning Strike Inspection
In the event of a suspected or actual lightning strike to the rotorcraft, the GA 35, GA 36, or GA 37 GPS
antenna installation shall be inspected to ensure that there is no structural damage around the areas
where lightning may have attached. If there is visible sign of damage to the antenna then it must be
replaced.
Verify that the 500W series unit receives and displays GPS satellite information normally.
2.9.2 Post-Hard Landing Inspection
In the event of a hard landing complete all the inspections specified in Table 1 Periodic Maintenance
Inspections.
2.10 Application of Protective Treatments
None, N/A.
2.11 Data Relative to Structural Fasteners
FASTENER TYPE AND TORQUE
Location
(see Installation
Drawing)
6‐32 Screw
6‐32 Screw
8‐32 Screw
10‐32 Screw
10‐32 Screw
4±2 inch‐pounds
12‐15 inch‐pounds
12‐15 inch‐pounds
12‐15 inch‐pounds
20‐25 inch‐pounds
500W Unit Mounting
Rack
X
GPS Antenna
Cooling Fan
X
X
Cooling Fan Bracket
X
X
2.12 Special Tools
For electrical bonding testing, a milliohm meter is required.
2.13 Additional Instructions
None
2.14 Overhaul Period
The system does not require overhaul at a specific time period. Power on self-test and continuous BIT
will monitor the health of the 500W Series unit. If the unit indicates an internal failure, the unit may be
removed and replaced. See troubleshooting section 2.6 contained in this document.
2.15 ICA Revision and Distribution
To revise this ICA, a letter must be submitted to the ACO along with the revised ICA. The ACO will
obtain AEG acceptance, and approve any revision to the Airworthiness Limitations in Section 3. After
FAA acceptance/approval, Garmin will release the revised ICA for customer use, and provide any
required notification of the revision.
500W Series
Instructions for Continued Airworthiness Bell 206B
190-01226-03 Rev. 5
Page 22 of 23
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising