Garmin R44 Instruction Manual
Rev.
Date
Description of Change
Instructions for Continued Airworthiness
for G500H in Robinson R44 Series Rotorcraft
Reg. No.____________ S/N_______________
STC TBD
Dwg. Number:
190-01190-11 Rev. 1
Garmin International, Inc.
1200 E. 151st Street
Olathe, Kansas 66062 USA
1 23/11/11 Initial Release
Record of Revision
1. INTRODUCTION ........................................................................................................................ 3
1.1 Purpose ...................................................................................................................... 3
1.2 Scope ......................................................................................................................... 3
1.3 Document Control ..................................................................................................... 3
1.4 Permission to Use Certain Documents.................................................................... 3
1.5 Definitions .................................................................................................................. 3
2. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS ....................................................... 4
2.1 Introduction ................................................................................................................ 4
2.2 Description of Alteration............................................................................................ 5
2.3 Control, Operating Information ................................................................................. 7
2.4 Servicing Information ................................................................................................ 7
2.5 Periodic Maintenance Instructions ........................................................................... 7
2.6 Troubleshooting Information..................................................................................... 9
2.7 Removal and Installation Information ...................................................................... 14
2.8 Diagrams.................................................................................................................... 19
2.9 Special Inspection Requirements ............................................................................ 19
2.10 Application of Protective Treatments ....................................................................... 19
2.11 Data Relative to Structural Fasteners ...................................................................... 19
2.12 Special Tools ............................................................................................................. 20
2.13 Additional Instructions ............................................................................................... 20
2.14 Overhaul Period ........................................................................................................ 20
2.15 ICA Revision and Distribution .................................................................................. 20
2.16 Assistance ................................................................................................................. 20
2.17 Implementation and Record Keeping ...................................................................... 20
3. AIRWORTHINESS LIMITATIONS ............................................................................................ 20
Instructions for Continued Airworthiness 190-01190-11 Rev. 1
for G500H in Robinson R44 Series Rotorcraft Page 2 of 20
1. INTRODUCTION
1.1 Purpose
This document is designed for use by the installing agency of the Garmin G500H PFD/MFD System as
Instructions for Continued Airworthiness in response to Title 14 CFR Part 27.1529 and Part 27 Appendix
A. This ICA includes information required by the operator to adequately maintain the Garmin G500H
system installed under STC TBD.
1.2 Scope
This document identifies the Instruction for Continued Airworthiness for the modification of the rotorcraft
for installation of the Garmin G500H PFD/MFD System installed under STC TBD.
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 G500H 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.
1.5 Definitions
The following terminology is used within this document:
1) ACO: Aircraft Certification Office
2) ADC: Air Data Computer
3) AEG: Aircraft Evaluation Group
4) AHRS: Attitude Heading Reference System
5) CFR: Code of Federal Regulations
6) FAA: Federal Aviation Administration
7) ICA: Instructions for Continued Airworthiness
8) MFD: Multi-Function Display
9) PFD: Primary Flight Display
10) PMI: Principal Maintenance Inspector
11) STC: Supplemental Type Certificate
Instructions for Continued Airworthiness 190-01190-11 Rev. 1
for G500H in Robinson R44 Series Rotorcraft Page 3 of 20
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 the Garmin G500H
PFD/MFD System.
Applicability: Applies to Robinson R44 series rotorcraft altered
by installation of the Garmin G500H PFD/MFD
System.
Definition of Abbreviations: See Section 1.5
Precautions: None
Units of measurement: None
Referenced publications:
Additional Maintenance Data:
Garmin 190-01190-06 Rev. 2 “G500H
INSTALLATION MANUAL FOR ROBINSON R44
SERIES ROTOCRAFT” or later revision
Garmin 190-01150-02, Rev. C “G500H PILOT
GUIDE” or later revision
Garmin 005-W0227-00 Rev. 1 “G500H Robinson
R44 MAIN WIRE HARNESS ASSY DWG (REQ’D)”
or later revision
Garmin 005-W0227-01 Rev. 1 “G500H
ROBINSON R44 NAV1 HARNESS ASSY DWG
(OPTL)” or later revision
Garmin 005-W0227-02 Rev. 1 “G500H
ROBINSON R44 GPS2 HARNESS ASSY DWG
(OPTL)” or later revision
Garmin 005-W0227-03 Rev. 1 “G500H
ROBINSON R44 NAV2 HARNESS ASSY DWG
(OPTL)” or later revision
Garmin 005-W0227-04 Rev. 1 “G500H
ROBINSON R44 WX DATALINK HARNESS ASSY
DWG (OPTL)” or later revision
Garmin 005-W0227-05 Rev. 1 “G500H
ROBINSON R44 IRIDIUM DATALINK HARNESS
ASSY DWG (OPTL)” or later revision
Garmin 005-W0227-06 Rev. 1 “G500H
ROBINSON R44 VIDEO HARNESS ASSY DWG
(OPTL)” or later revision
Instructions for Continued Airworthiness 190-01190-11 Rev. 1
for G500H in Robinson R44 Series Rotorcraft Page 4 of 20
Garmin 005-W0227-07 Rev. 1 “G500H
ROBINSON R44 SERIAL ALTITUDE HARNESS
ASSY DWG (OPTL)” or later revision
Garmin 005-W0227-08 Rev. 1 “G500H
ROBINSON R44 TRAFFIC HARNESS ASSY DWG
(OPTL)” or later revision
Garmin 005-W0227-09 Rev. 1 “G500H
ROBINSON R44 GLARESHIELD HARNESS ASSY
(REQD)” or later revision
Garmin 190-01190-00, Rev 2, “G500H ROBINSON
R44 INSTALLATION DRAWING” or later revision
Retention: This document, or the information contained within,
will be included in the rotorcraft’s permanent
records.
2.2 Description of Alteration
This STC upgrades existing avionics for the Robinson R44 series rotorcraft as summarized below.
The Garmin G500H Flight Display System consists of an instrument panel mounted GDU 620 display
and remote mounted LRUs which provide data to the display. The GDU 620 provides controls for the
G500H system and of a Primary Flight Display and Multifunction Display in the pilot’s primary field of
view. Remote mounted LRUs include one GRS 77H AHRS, one GMU 44 Magnetometer, one GDC 74H
ADC, and one GTP 59 OAT probe.
Rotorcraft modified under this G500H STC are restricted to VFR only. To clarify this operation limitation,
a placard with the text, “THIS ROTORCRAFT IS APPROVED FOR DAY AND NIGHT VFR
OPERATIONS” is required to be in the pilot’s view.
All installed G500H equipment is connected to a power bus that receives power as soon as the battery
master switch is turned on.
Separate circuit breakers have been installed in the circuit breaker panel for the GDU 620 (PFD), GRS
77H / GMU 44 (AHRS), and GDC 74H (ADC) as circled below:
PITOT
HEAT
CARGO RMT RLS
AUX
FUEL PUMP
AUX
HYD GOV ALT GAGES
PWR
HORN
START
CLUTCH
START
WARN
LTS
TACHS
R E
GPS 1 AVIONICS
AHRS
A/C
ADC
MKR
PFD
BEACON
XPDR AUDIO COM 2
FAN
DME
COM 1
STROBE LTS LAND LT
NAV
Instructions for Continued Airworthiness 190-01190-11 Rev. 1
for G500H in Robinson R44 Series Rotorcraft Page 5 of 20
Weight and Balance Robinson R44
[1] L
[2]
[3]
I
P
W
(LB)
)
)
)
)
1 011-01264
-60 GDU 620 (Unit Only)
6.38
191.4
9.57
GDU 620 (Installed
connector)
7.04 211.2 10.56
2 011-00868
-20
GRS 77H (Unit Only)
2.80
53.9
0.0
GRS 77H (Installed with
b
racket
and
3 011-00870
-10
GMU 44
(Unit Only)
GMU 44 (Installed with
b
racket
and
4 011-00882
-11
GDC 74H (Unit Only)
GDC 74H (Insta
lled with
bracket and
The installed G500H equipment can be accessed as described below:
1. GDU 620: FS 30.00, WL 42.5 Access or remove by removing the six screws in the bezel of
the GDU 620.
2. GRS 77H: FS 19.25, WL 30.0 Access or remove by tilting the instrument shroud to its open
position by removing four glareshield retaining screws.
3. GMU 44: FS 41.5, WL19.75 Access or remove by lifting the pilots seat bottom.
4. GDC 74H: FS 39.25, WL 15.75 Access or remove by lifting the co-pilots seat bottom. Then
remove the screws holding the divider plate to the forward half of the co-pilots seat box.
Remove the divider plate to gain access to the GDC 74H.
5. GTP 59: FS 42.5, WL 13.5 Access or remove by removing the center access panel on the
bottom of the helicopter.
2.2.1 Weight and Balance Information
TEM
ART NUMBER
connector)
connector)
connector)
EIGHT
3.75 72.19 0.0
0.35
0.51 21.17 8.93
1.70
2.00 78.5 -23
ARM (IN
30.00
19.25
41.50
39.25
ONGITUDINAL
MOMENT (IN-LB
ARM (IN
1.5
0.0
14.53
17.5
66.73
-11.5
LATERAL
MOMENT (IN-LB
6.13
-19.55
Instructions for Continued Airworthiness 190-01190-11 Rev. 1
for G500H in Robinson R44 Series Rotorcraft Page 6 of 20
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