Add replacement instructions for OAT bond strap
Update referenced publications. Clarified periodic maintenance
instructions. Foil check annual. Added new special inspection
requirements and periodic bonding test.
Remove “FAA Approved” language. Update IM rev. Add additional
instructions for Mid-Continent standby attitude indicator installations.
Added information regarding GAD 43e. Added additional Control,
Operating Information and deleted Pilot’s Guide reference. Incorporated
GDC 74 testing procedural information from Installation Manual. Revised
lightning strike inspection.
G500 PFD/MFD System
Instructions for Continued Airworthiness
as installed in
_____________________________
(Make and Model Airplane)
Reg. No.____________ S/N_______________
Dwg. Number:
190-01102-00 Rev. 5
Garmin International, Inc.
1200 E. 151st Street
Olathe, Kansas 66062 USA
Record of Revision
1. INTRODUCTION ................................................................................................................... 3
1.1 Purpose ................................................................................................................. 3
1.2 Scope .................................................................................................................... 3
1.3 Document Control ................................................................................................. 3
1.4 Airworthiness Limitations Section ......................................................................... 3
1.5 Permission to Use Certain Documents ................................................................. 3
1.6 Definitions ............................................................................................................. 3
2. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS .................................................... 4
2.1 Introduction ........................................................................................................... 4
2.2 Description of Alteration ........................................................................................ 4
2.3 Control, Operating Information ............................................................................. 4
2.4 Servicing Information ............................................................................................ 5
2.5 Periodic Maintenance Instructions ........................................................................ 6
2.6 Troubleshooting Information ................................................................................. 8
2.7 Removal and Replacement Information ............................................................... 8
2.8 Diagrams............................................................................................................... 9
2.9 Special Inspection Requirements ......................................................................... 9
2.10 Application of Protective Treatments .................................................................... 9
2.11 Data Relative to Structural Fasteners ................................................................... 9
2.12 Special Tools ........................................................................................................ 9
2.13 Additional Instructions ........................................................................................... 10
2.14 Overhaul Period .................................................................................................... 10
2.15 ICA Revision and Distribution ............................................................................... 10
2.16 Assistance............................................................................................................. 10
2.17 Implementation and Record Keeping ................................................................... 10
3. APPENDIX A ......................................................................................................................... 11
3.1 LRU Locations ...................................................................................................... 11
3.2 Wire Routing – Single-Engine .............................................................................. 12
3.3 Wire Routing – Twin-Engine ................................................................................. 13
G500 PFD/MFD System 190-01102-00 Rev. 5
Instructions for Continued Airworthiness Page 2 of 13
1. INTRODUCTION
1.1 Purpose
This document is designed for use by the installing agency of the Garmin G500 PFD/MFD System as
Instructions for Continued Airworthiness in response to Federal Aviation regulation (FAR) Part 23.1529,
and Part 23 Appendix G. This ICA includes information required by the operator to adequately maintain
the Garmin G500 system installed under Approved Model List (AML) STC.
1.2 Scope
This document identifies the Instruction for Continued Airworthiness for the modification of the aircraft for
installation of the Garmin G500 PFD/MFD System installed under Approved Model List (AML) STC.
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 Airworthiness Limitations Section
There are no additional Airworthiness Limitations as defined in 14 CFR § 23, Appendix G. G23.4 that
result from this modification. The Airworthiness Limitations section is FAA approved and specifies
maintenance required under §§43.16 and 91.403 of the Federal Aviation Regulations unless an
alternative program has been FAA approved.
1.5 Permission to Use Certain Documents
Permission is granted to any corporation or person applying for approval of a Garmin G500 system 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.
1.6 Definitions
The following terminology is used within this document:
1) AC: Advisory Circular
2) ACO: Aircraft Certification Office
3) ADC: Air Data Computer
4) AEG: Aircraft Evaluation Group
5) AHRS: Attitude Heading Reference System
6) CFR: Code of Federal Regulations
7) FAA: Federal Aviation Administration
8) ICA: Instructions for Continued Airworthiness
9) MFD: Multi-Function Display
10) PFD: Primary Flight Display
11) PMI: Primary Manufacturing Inspector
12) STC: Supplemental Type Certificate
13) TSO: Technical Standard Order
14) TVS: Transient Voltage Suppressor
G500 PFD/MFD System 190-01102-00 Rev. 5
Instructions for Continued Airworthiness Page 3 of 13
Content, Scope, Purpose and Arrangement:
This document identifies the Instructions for
Continued Airworthiness for the modification of the
aircraft by installation of the Garmin G500
PFD/MFD System.
Applies to aircraft altered by installation of the
Garmin G500 PFD/MFD System.
Definition of Abbreviations:
Garmin 190-01102-06 Rev. 7 “G500 AML STC
Installation Manual” or later revisions
This document, or the information contained within,
will be included in the aircraft’s permanent records.
2. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS
2.1 Introduction
2.2 Description of Alteration
The Garmin G500 PFD/MFD System is a combination of Garmin LRUs designed to provide both a PFD
and MFD in the primary field of view. The system consists of a GDU 620 display, GRS 77 AHRS, GDC
74( ) ADC, GMU 44 magnetometer, and GTP 59 outside air temperature probe. This modification may
also include a Garmin GAD 43 Adapter and/or Mid Continent Instruments attitude indicator (models
4300-4( ), or 4200-( ) with MD420). Installation of the Garmin G500 system, specific for the aircraft
installation, is documented in the G500 AML STC Installation Manual.
2.3 Control, Operating Information
The GDU 620, GRS 77, GMU 44, and GDC 74( ) are powered by an electrical bus which is normally
energized with battery, generator, or external power applied to the aircraft. The GAD 43/43e is typically
powered by an avionics bus which is normally controlled by the avionics bus power switch. The LRUs
do not have individual power switches and are powered when the bus is energized and the circuit
breakers are closed. The following circuit breakers provide power to the individual LRUs:
• PFD: GDU 620
• AHRS: GRS 77 #1 and GMU 44 #1
• ADC: GDC 74( )
• GAD: GAD 43/43e
In a dual G600 installation, the PFD, AHRS, and ADC circuit breakers are suffixed with the numbers 1
and 2 (i.e. AHRS 1 and AHRS 2). If an LRU is optionally powered from multiple circuit breakers, then
the circuit breakers will be suffixed with the letters A and B (i.e AHRS 1A and AHRS 1B).
The GDU 620 has a PFD and MFD display and front panel controls for performing all normal and
configuration operations. Knobs at the lower left and right corners are used for selecting and entering
G500 PFD/MFD System 190-01102-00 Rev. 5
Instructions for Continued Airworthiness Page 4 of 13