<p> FAA APPROVED ROTORCRAFT FLIGHT MANUAL SUPPLEMENT</p><p> for</p><p>Garmin GDL 90 UAT System with GSL 71 Control Panel</p><p> as installed in </p><p>______Make and Model Rotorcraft</p><p>Registration Number ______</p><p>Serial Number ______</p><p>This supplement must be attached to the basic Rotorcraft Flight Manual when the aircraft is modified by the installation of the Garmin GDL 90 UAT System with GSL 71 Control Panel in accordance with STC No. ______</p><p>The information contained herein supplements or supersedes the basic manual only in those areas listed herein. For limitations, procedures, and performance information not contained in this supplement, consult the basic Rotorcraft Flight Manual. Rotorcraft Flight Manual Supplement GDL 90/GSL 71 System Installation</p><p>FAA Approved ______Manager Anchorage Aircraft Certification Office Federal Aviation Administration Anchorage, AK</p><p>Date ______</p><p>Revision Log Rev Date Description EN By This generic word document is based on the approved document Garmin AT p/n 560-0412- 01 Rev A. It is the installer’s responsibility to modify this document and obtain approval for the intended aircraft.</p><p>TABLE OF CONTENTS 1. GENERAL...... 4 2. LIMITATIONS...... 5 2.1 GSL 71 UAT CONTROL PANEL...... 5 2.1.1 Operational...... 5 2.1.2 User Manuals...... 5 2.1.3 Power on Self Test...... 5 2.2 GDL 90 UAT DATALINK...... 5 2.2.1 Operational...... 5 3. EMERGENCY / ABNORMAL PROCEDURES...... 5 3.1 EMERGENCY PROCEDURES...... 5 3.2 ABNORMAL PROCEDURES...... 5 4. NORMAL PROCEDURES...... 6 4.1 GSL 71 UAT CONTROL PANEL...... 6 5. PERFORMANCE...... 6</p><p>LIST OF ILLUSTRATIONS FIGURE 1-1. GSL 71 FRONT PANEL...... 4 FIGURE 1-2. SAMPLE GSL 71 SYSTEM DIAGRAM...... 4</p><p>FAA Approved Page 2 of 6 Date January 27, 2006 Rotorcraft Flight Manual Supplement GDL 90/GSL 71 System Installation</p><p>FAA Approved Date: Page 3 of 6 1. GENERAL The Garmin GSL 71 is an optional control panel for the GDL 90 UAT datalink. It is certified under TSO C154. The GSL 71 controls the GDL 90 and provides the operational status of the GDL 90. The GSL 71 provides data to the GDL 90 for transmission via the UAT datalink. This data may include a Flight ID code, or other Rotorcraft status information including ADS-B position data. Squawk Alt it ude Small, Inner Code Display Knob</p><p>Large, Out er Knob</p><p>UAT St at us Power St andby On Alt it ude VFR On Select Ident Flight ID Emergency Alt it ude Hold Mode Select Alert er</p><p>Figure 1-1. GSL 71 Front Panel</p><p>Top UAT Antenna GPS Antenna</p><p>Altitude Encoder</p><p>Bottom UAT Antenna</p><p>GSL 71 UAT Control Panel</p><p>GDL 90</p><p>Figure 1-2. Sample GSL 71 System Diagram Rotorcraft Flight Manual Supplement GDL 90/GSL 71 System Installation</p><p>2. LIMITATIONS</p><p>2.1 GSL 71 UAT CONTROL PANEL 2.1.1 Operational Information displayed by the GSL 71/GDL 90 is limited to supplemental use. The GSL 71 and GDL 90 do not replace any required equipment.</p><p>When directed by Air Traffic Control (ATC) to turn “off” the ADS-B transmission, pilots should use the standby (SBY) button to stop ADS-B transmissions while airborne or on the surface. 2.1.2 User Manuals The manual or the information contained in the manual listed below (or later FAA-approved revisions), must be immediately available to the flight crew.  GSL 71 UAT Control Panel Pilot’s Guide…P/N 560-0410-00 Rev B 2.1.3 Power on Self Test The GSL 71 performs a self test when power is applied. If any of the GSL 71 tests fail, power off the GSL 71.</p><p>2.2 GDL 90 UAT DATALINK 2.2.1 Operational The UAT datalink is approved for Air Traffic Control (ATC) ADS-B Surveillance Services in the United States. For areas where ATC Surveillance Services are provided, the UAT equipment shall broadcast aircraft position, velocity, barometric altitude information, flight identification and/or a 4096 squawk code. UAT datalink is also used to receive Traffic Information Services-Broadcast (TIS-B) and Flight Information Services-Broadcast (FIS-B) information. To receive TIS-B and FIS-B information, a display will be needed. Not all areas of the United States have the capability to provide ATC services or TIS-B/FIS-B information on the UAT datalink. Refer to Notice to Airman for areas of coverage and operational applications, found on the FAA website: www.flyadsb.com.</p><p>3. EMERGENCY / ABNORMAL PROCEDURES</p><p>3.1 EMERGENCY PROCEDURES No change. Refer to approved Rotorcraft Flight Manual.</p><p>3.2 ABNORMAL PROCEDURES No change. Refer to approved Rotorcraft Flight Manual.</p><p>FAA Approved Date ______Page 5 of 6 Rotorcraft Flight Manual Supplement GDL 90/GSL 71 System Installation</p><p>4. NORMAL PROCEDURES</p><p>4.1 GSL 71 UAT CONTROL PANEL The normal operating procedures for the GSL 71 are included in the Pilot’s Guide listed in Section 2.1.2 on page 5.</p><p>5. PERFORMANCE No change. </p><p>FAA Approved Page 6 of 6 Date ______</p>