Garmin AS-350 Series Instructions Manual Download Page 2

Page: 2 / 13

GDL 90 System ICA, Helicopter STC

Garmin AT
2345 Turner Rd SE

21 December 2005

Salem, OR 97302

Part #: 560-0255-00 Rev A

Page 2 of 13

Revision Log

Rev Date

Description

21 Dec 2005

Initial release, MS Word 2002

8297

MAK

Garmin AT, Inc.

Cage Code

OXCJ6

2345 Turner Road SE

Salem, Oregon USA

Title:

GDL 90 System Instructions for
Continued Airworthiness, Helicopter
STC

Number:

560-0255-00

Prepared by:

Marvin A. Kumley

Date:

21 December
2005

Approved
by:

Thomas L. Mosher

Tom Mosher GDL 90 Project Manager

Date:

22 Dec 2005

Summary of Contents for AS-350 Series

Page 1: ...aries Printed in the USA GDL 90 System Instructions for Continued Airworthiness Helicopter STC AS 350 Series Part Number 560 0255 00 Document Revision A 21 December 2005 Garmin AT Inc 2345 Turner Rd SE Salem OR 97302 USA Phone 503 581 8101 FAX 503 364 2138 ...

Page 2: ...ision Log Rev Date Description EN By A 21 Dec 2005 Initial release MS Word 2002 8297 MAK Garmin AT Inc Cage Code OXCJ6 2345 Turner Road SE Salem Oregon USA Title GDL 90 System Instructions for Continued Airworthiness Helicopter STC Number 560 0255 00 Prepared by Marvin A Kumley Date 21 December 2005 Approved by Thomas L Mosher Tom Mosher GDL 90 Project Manager Date 22 Dec 2005 ...

Page 3: ...uipment Calibration 8 2 5 2 GDL 90 Battery Replacement 8 2 5 3 Cleaning the GSL 71 Front Panel 9 2 5 4 Altitude Encoder Calibration 9 2 6 OVERHAUL PERIOD 9 2 7 TROUBLESHOOTING INFORMATION 9 2 8 REMOVAL AND REPLACEMENT INFORMATION 9 2 9 GENERAL PROCEDURAL INSTRUCTIONS 10 2 10 DIAGRAMS 11 2 11 SPECIAL INSPECTION REQUIREMENTS 12 2 12 APPLICATION OF PROTECTIVE TREATMENTS 12 2 13 DATA RELATIVE TO STRUC...

Page 4: ...nt to dealers and or GDL 90 or GSL 71 owners of record if revision is determined to be significant 1 2 Airworthiness Limitations Section ALS The airworthiness limitations section is FAA approved and specifies inspections and other maintenance required under 43 16 and 91 403 of the Federal Aviation Regulations FAR unless an alternative program has been FAA approved There are no mandatory replacemen...

Page 5: ... Inspector POI Principal Operation Inspector STC Supplemental Type Certificate UAT Universal Access Transceiver Precautions N A None Units of measurement N A None Referenced publications or later FAA approved revisions Garmin AT documents GDL 90 System Helicopter Master Data List 560 0254 00 Rev A GDL 90 Installation Manual 560 1049 01 Rev A GDL 90 System Helicopter Installation Manual Supplement ...

Page 6: ...nna GPS WAAS antenna and other system interfaces The GDL 90 can interface to the pilot through optional existing equipment such as the Garmin MX20 Multi Function Display Altitude data can be provided directly to the GDL 90 as shown in Figure 1 or through other compatible interfaced equipment such as the MX20 The GDL 90 UAT may also interface to the pilot through the optional GSL 71 UAT Control Pan...

Page 7: ... VFR Select ModeSelect St andby On Alt it ude On Ident P ower Figure 2 GSL 71 Front Panel The GDL 90 System components for this installation are listed in Table 1 Table 1 GDL 90 System Components Description Model No Mfg P N Mfg Comment Data Link Sensor GDL 90 430 6081 100 xxx Garmin AT UAT Control Panel GSL 71 430 6090 6xx Garmin AT Optional Micro APM 430 6200 0xx Garmin AT GPS Antenna A 33 590 1...

Page 8: ...f power and built in test is continuously executed Detected errors are indicated by failure LEDs on the GDL 90 and maintenance is on condition If the GDL 90 is interfaced to an optional external controller or MFD detected errors may also be indicated by annunciation on the interfaced controller or MFD The GSL 71 UAT Control Panel is also designed to detect internal failures A self test is executed...

Page 9: ...d scratching the surface of the display 2 5 4 Altitude Encoder Calibration The GDL 90 and or GSL 71 are interfaced to an altitude encoder This encoder must be tested within the previous 24 months as specified in FAR 91 411 2 6 Overhaul Period The system does not require overhaul at a specific time period Power on self test and continuous BIT will monitor the health of the GDL 90 UAT and GSL 71 Con...

Page 10: ...ock assembly No special extraction tools are required To install the GSL 71 in the mounting frame make sure the cam lock is rotated so the rear part is up then slide the unit into the frame and tighten with the 3 32 hex tool The unit will be pulled into the frame by the cam lock and the connector will fully engage If the GSL 71 unit is removed and reinstalled verify that the GSL 71 unit power up s...

Page 11: ...tenna 34 0 optional GSL 71 tray Procedures and data required for wiring maintenance are described in the Electrical Connections section in the appropriate Installation Manuals as detailed in Section 2 1 The electrical load analysis may need update after maintenance in accordance with AC 43 13 1B Chapter 11 Use the values in Table 4 for computation Table 4 Unit Power Loads 14 VDC 28 VDC Input Typic...

Page 12: ... 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 Rotorcra...

Page 13: ...R 97302 Part 560 0255 00 Rev A Copyright 2005 Garmin AT All Rights Reserved Page 13 of 13 For operators under FAR 121 135 this ICA must be incorporated into the operator s approved maintenance program through coordination and approval with the certificate holder s PMI POI as applicable ...

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