Purpose; Scope; Organization; Applicability - Garmin GI 275 Maintenance Manual

1.1 Purpose

The purpose of this document is to provide Instructions for Continued Airworthiness (ICA) and
maintenance information for Garmin GI 275 system as installed under STC SR01980WI. This document
also satisfies the requirement for continued airworthiness as required by 14 CFR 27.1529 and Part 27
Appendix A.

1.2 Scope

This document provides maintenance instructions and identifies the Instructions for Continued
Airworthiness for the installation and maintenance of the Garmin GI 275 system as installed under the
AML STC.

1.3 Organization

The following outline briefly describes the organization of this manual:
Section 2.1: System Overview
Provides a description of the GI 275 system equipment installed by this STC.
Section 2.2: LRU Description, Control, and Operation
Provides basic control and operation information specifically tailored to maintenance practices.
Section 3: Instructions for Continued Airworthiness
Provides Instructions for Continued Airworthiness of the GI 275 system LRUs.
Section 4: Troubleshooting
Provides troubleshooting information, including connector information, pinouts, and flowcharts to aid in
diagnosing and resolving problems with GI 275 system equipment.
Section 5: Equipment Maintenance and Checkout Procedures
Provides instructions for the removal and replacement of GI 275 system LRUs, including system checkout
procedures.
Appendix A: Installation-Specific Information
Provides a template to record rotorcraft-specific installation and configuration data for the GI 275 system.

1.4 Applicability

This document applies to all rotorcraft with the GI 275 system installed in accordance with AML STC
SR01980WI. Modification of a rotorcraft by this STC obligates the rotorcraft operator to include the
maintenance information provided by this document in the operator's Rotorcraft Maintenance Manual and
the operator's Rotorcraft Scheduled Maintenance Program.
190-02246-C2 GI 275 Part 27 AML STC Maintenance Manual
Rev. 3 Page 1-2