GDL 90 System ICA, Helicopter STC
Garmin AT
2345 Turner Rd SE
21 December 2005
Salem, OR 97302
Part #: 560-0255-00 Rev A
©
Copyright 2005 Garmin AT All Rights Reserved
Page 12 of 13
The GPS antenna is located on top of the fuselage. See A33 or A34 Antenna Installation Guide
(listed under reference document paragraph 2.1 of this document) for antenna description.
The UAT antennas are located on top and/or bottom of the fuselage. See the UAT Antenna
Installation Guides (listed under reference document paragraph 2.1 of this document) for antenna
description.
2.11
Special Inspection Requirements
None, N/A.
2.12
Application of protective treatments
None, N/A.
2.13
Data relative to structural fasteners
None, N/A.
2.14
Special Tools
No special tools are required for system checkout. See GDL 90 or GSL 71 Installation Manuals
listed under reference documentation in paragraph 2.1 of this document.
Use of the 3/32" hex driver provided in the GSL 71 installation package (Garmin AT P/N 998-
0048) is recommended for reinstallation of the GSL 71, to prevent damage to the GSL 71 (see
Section 2.8).
Wiring maintenance may require use of the crimp & positioner/locator tools described in the
‘Special Tools Required’ section in the GDL 90 or GSL 71 Installation Manuals listed in
paragraph 2.1 of this document. No special tools are required for system checkout.
2.15
Additional Instructions for Rotorcraft Operating under FAR 121/135
1.
Rotorcraft Electrical Loads: Perform rotorcraft electrical system load analysis. See
electrical load data contained in Section 2.9 of this document.
2.
Methods of balancing flight controls: N/A.
3.
Special Repair Methods applicable to the rotorcraft: See certificate holder’s General
Maintenance Manual for instructions.
2.16
Implementation and Record Keeping
Incorporate operational test and troubleshooting guides into Rotorcraft Maintenance manuals.
Update the wiring diagram manual and equipment list as necessary. Add each component to the
reliability program as necessary.
For operators under FAR 91, the owner/operator is responsible for ensuring the ICA is made part
of the applicable section 91.409 inspection program for their rotorcraft.
