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ACSS NXG-900 AML STC System Maintenance Manual

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Aviation Communication &
Surveillance Systems
19810 North 7th Avenue
Phoenix, Arizona 85027-4741
U.S.A.
SYSTEM MAINTENANCE MANUAL
Contains Instructions for Continued Airworthiness for STC ST02636LA
Aircraft Make, Model, Registration Number, Serial Number, and
accompanying STC configuration information in Appendix A
must be completed and saved with aircraft permanent records.
All other marks are owned by their respective companies.
This document contains technical data and is subject to U.S. export regulations.
These commodities, technology, or software were exported from the United States in accordance with the
export administration regulations. Diversion contrary to U.S. law is prohibited.
Pub. No. 8009949-610
Revision A
1
NXG-900 AML STC
ACSS is a U.S. registered trademark.
Printed in the U.S.A.
T-1
06 DEC 2018

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  • Page 1 STC configuration information in Appendix A must be completed and saved with aircraft permanent records. ACSS is a U.S. registered trademark. All other marks are owned by their respective companies. This document contains technical data and is subject to U.S. export regulations.
  • Page 2 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of ACSS. Neither this document nor the information contained herein shall be used, reproduced, or disclosed to others without the written authorization of ACSS, except to the extent required for installation or maintenance of the recipient's equipment.
  • Page 3 For each revision, put the revised pages in your manual and discard the superseded pages. Write the revision number and date, and the incorporator's initials in the applicable columns on the Record of Revisions. The initial A shows ACSS is the incorporator. Revision Revision Date –...
  • Page 4 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page RR-2 Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.
  • Page 5 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL LIST OF EFFECTIVE PAGES – Original 23 JUL 2018 Revision 06 DEC 2018 Subheading Pages Rev. Title T-1 to T-2 Record of Revisions RR-1 to RR-2 List of Effective Pages LEP-1 to LEP-2 Table of Contents TOC-1 to TOC-2 Section 1 –...
  • Page 6 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page LEP-2 Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 7: Table Of Contents

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table of Contents GENERAL DESCRIPTION ......................... 1-1 Introduction ..........................1-1 Applicability ..........................1-1 Publications ..........................1-1 Revision and Distribution ......................1-1 Reference ............................ 1-2 SYSTEM OVERVIEW ......................... 2-1 NXG-900 ............................2-1 Power Requirements ........................2-2 Connector Information .........................
  • Page 8 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Using the Maintenance PC ......................7-3 Establishing MPC – NXG-900 Connection ................7-4 7.4.1 RETURN TO SERVICE ........................8-1 Return to Service Procedures ..................... 8-1 Maintenance Records ........................8-1 – INSTALLATION SPECIFIC INFORMATION............. A-1 APPENDIX A AIRCRAFT SPECIFIC INFORMATION ..................

  • Page 9: General Description

    This document is required for maintaining the continued airworthiness of the aircraft. When this document is revised, every page will be revised to indicate current revision level. ACSS Dealers may obtain the latest revision of this document on the ACSS Suppliers Section of the ACSS website at www.acss.com.

  • Page 10: Reference

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Reference Unless specifically noted,  ‘SBAS’ (Satellite-Based Augmentation System) refers to a system that supports wide-area augmentation through the use of broadcast messages from satellites to improve the GPS navigation system accuracy.  ‘SBAS’ is a general term used to describe systems such as WAAS (Wide Area Augmentation System) and EGNOS (European Geostationary Navigation Overlay Service).
  • Page 11 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table 2 – Acronyms and Abbreviations (Continued) Acronym/ Abbreviation Description MAINT Maintenance Maintenance Application Tool Maintenance PC (altitude above) Mean Sea Level mΩ Milliohms Not Applicable North/South Number Operational Personal Computer Phase Locked Loop...
  • Page 12 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 13: System Overview

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL SYSTEM OVERVIEW The NXG-900 contains an integrated WAAS capable GPS receiver. The GPS receiver provides ownship aircraft position, velocity, and track information to the XS-950 transponder for the ADS-B Out position messages. This ADS-B information is automatically transmitted to other aircraft and ground stations providing immediate and accurate surveillance of ownship.

  • Page 14: Power Requirements

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Figure 2 – NXG-900 Interface Summary Power Requirements The NXG-900 operates at 28 VDC. Electrical load information is provided below. Appendix A contains specific details to the load changes relating to the installation of the NXG-900.
  • Page 15 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table 4 – Interfacing Connector P2 Pin Layout (Continued) Input (I) or Description Connector-Pin Output (O) Spare P2-11 Spare P2-12 Spare P2-13 Spare P2-14 Spare P2-15 RESERVED P2-16 Spare P2-17 Spare P2-18 Spare P2-19...
  • Page 16 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table 4 – Interfacing Connector P2 Pin Layout (Continued) Input (I) or Description Connector-Pin Output (O) Spare P2-45 Spare P2-46 Spare P2-47 Spare P2-48 RESERVED P2-49 Spare P2-50 Spare P2-51 Spare P2-52 WEIGHT ON WHEELS / AIR SPEED MONITOR...
  • Page 17 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table 5 – Loading/Gradient Specifications (Continued) Connector-Pin Functional Description ARINC 429 GPS Output: (P2-6 A[+], P2-26 B[-]) This ARINC 429 bus is used to output (high speed) the following labels to the Transponder: Label...
  • Page 18 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 19: Control And Operation

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL CONTROL AND OPERATION Controls The NXG-900 has no external controls during normal operation other than using the installed circuit breaker as a means to perform the NXG-900 Functional Test. Refer to Section 7 for other maintenance interfacing options.
  • Page 20 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 21: Instructions For Continued Airworthiness

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL INSTRUCTIONS FOR CONTINUED AIRWORTHINESS This section provides Instructions for Continued Airworthiness for the NXG-900. This section satisfies the requirements for continued airworthiness as required by 14 CFR Part 25.1529 and defined 14 CFR Part 25 Appendix H.

  • Page 22: Maintenance Intervals

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table 6 – Equipment and Materials Equipment Description Milliohm Meter Milliohm Meter (Extech 380580) Maintenance Computer The MPC is a laptop computer used to operate the Maintenance (MPC) Application Tool (MAT) and should have the following features;...

  • Page 23: Visual Inspection

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table 7 – Maintenance Intervals (Continued) Item Description/Procedure Section No. Interval Remove/Reinstallation of The NXG-900 Functional Check must same NXG-900 LRU, Testing be performed. Antenna, or Antenna Cable. The XS-950 transponder system must Removal and...

  • Page 24: Cleaning

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL 3. Condition of base seals. a. In the event the antenna seal shows sign of damage or decomposition, re-seal and check the antenna for electrical bonding per Section 4.8. 4.6.3 Post Lightning Strike Inspection A post lightning strike inspection must be performed for a suspected or actual lightning strike to the antenna connected to the NXG-900.

  • Page 25: Cleaning The Gps Antenna

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL 4.7.3 Cleaning the GPS Antenna 1. Use cloth or brush dampened in solvent to clean; then dry with cloth. Electrical Bonding Electrical equipment chassis, shield/ground terminations, antennas, supporting brackets, and racks must be electrically bonded to the aircraft's main structure. Compliance of the electrical bonding should be verified by inspection using a calibrated milliohm meter.
  • Page 26 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 27: Troubleshooting And Fault Isolation

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL TROUBLESHOOTING AND FAULT ISOLATION This section contains fault isolation and troubleshooting instructions for the NXG-900 System installed under AML STC ST02636LA. This supplemental information must be incorporated into any existing Fault Isolation Manual that pertains to the Transponder system or ATA Chapter 34-53, to assist in properly troubleshooting the ADS-B Out System.
  • Page 28 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Table 9 – NXG-900 GPS Troubleshooting (Continued) Symptoms Possible Causes Recommended Action 1. Ensure the GPS antenna has an unobstructed (line of sight) to the GPS signal source. ADS-B FAIL 2. If using a GPS Simulator, or GPS repeater, verify they...
  • Page 29 GPS information working correctly 7. Troubleshoot the ADS-B Fail Annunciation. Problem Persists after exhausting all Failed Component 1. Contact ACSS Customer Service before unit removal. relevant troubleshooting steps Pub. No. 8009949-610 Revision A 06 DEC 2018 Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 30: Additional Troubleshooting Using The Mpc

    ‘Refresh’, ‘Clear’, ‘Filter’, ‘Save’, ‘Load’, and ‘Export to CSV’. The fault data can be cleared at the option of the user. NOTE: The Fault Log Should not be Cleared Unless Instructed by ACSS Field Service Personnel. Figure 4 – MAT Example showing Fault Log Entries A saved fault log can be viewed by the MAT when the unit is not connected by using the Export to CSV button as shown in Figure 4.
  • Page 31 0x0014 Over temperature Log the fault and allow the unit to cool down. If the fault continues Shutdown to be seen contact ACSS Field Service before removal. 0x0015 FPGA Failure Cycle power to the unit and check if the fault persists. Contact ACSS Field Service before removal.

  • Page 32: Real Time Troubleshooting

    Check any applicable external items and connections associated with that failure. b. Cycle power to the unit and check if the fault persists. c. Contact ACSS Field Service before removal of the unit. 4. Verify all tests are OK (Value = ‘0’) prior to continuing with the checkout procedures.

  • Page 33: Gps Operation Check

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL 5.2.3 GPS Operation Check This check requires that the GPS antenna has an unobstructed (line of sight) path to either: clear sky, GPS Simulator, or GPS repeater to generate the necessary signal. 1. Apply aircraft power and close all applicable NXG-900 circuit breakers.

  • Page 34: In-Air" Simulation Testing

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL 5.2.4 “In-Air” Simulation Testing As an additional option, the MPC can allow the operator to place the unit “in-air” by overriding Ground Speed. In this way, an Airborne Position may also be checked. NOTE: Ensure local airport operations are notified if baro-altitude levels are also going to be simulated, as local traffic could be affected by a broadcast of simulated information.

  • Page 35: Unit Removal And Reinstallation

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL UNIT REMOVAL AND REINSTALLATION This section provides instructions for removing, reinstalling, and adjusting each Line Replaceable Unit (LRU) of the NXG-900 System. After removal and reinstallation, LRUs must be functional checked as described in Section 7.

  • Page 36: Post Maintenance Testing - Nxg-900 Lru

    MS20365-632 NUT, FIBERLOCK, #6-32 NOTES: 1. Part of installation kit ACSS part number 9060-17250-01 2. Mounting Plate is fabricated as the installation requires. Use the previous mounting plate as a template. Deviations may require additional structural approvals. 3. Quantity indicated assumes the use of a mounting plate. See the aircraft configuration records for specific installation details.

  • Page 37: Nxg-900 Gps Antenna

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Figure 8 – NXG-900 Receiver IPC NXG-900 GPS Antenna The incorporation of AML STC (ST02636LA) does not approve the installation or modification of the GPS antenna or antenna cabling. All interfacing GPS Antennas and Cables must have been installed and approved by other means.
  • Page 38 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 39: Configuration And Testing

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL CONFIGURATION AND TESTING This section contains instructions for configuring the NXG-900 as well as system tests to ensure functioning correctly. Depending on the type of maintenance being performed, and the installation configuration some steps that are not applicable may be skipped.

  • Page 40: Gps - Transponder Interface Check

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL 4. When the NXG-900 obtains valid GPS information, place the XS-950 Transponder in a transmitting mode (mode other than Standby), and observe the following; a. No ADS-B failure annunciations are present. b. No Transponder Fail annunciations are present.

  • Page 41: Maintenance Pc Connection

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL 6. Ensure that the Latitude/Longitude are displayed on the IFR-6000 and are representative of valid GPS coordinates for the area the aircraft is being tested. (If necessary, use a known surveyed point to perform this test, or a validated GPS Source to compare the location results).

  • Page 42: Establishing Mpc - Nxg-900 Connection

    If a “Response timeout for write request” message is seen on the status bar the unit is not responding to requests. Cycle power to the NXG-900. NOTE: This symptom can also be caused by having the wrong USB driver installed. Contact ACSS Customer Support for assistance with the MPC Tool.. Pub. No. 8009949-610...
  • Page 43 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Figure 10 – Maintenance Appliance Tool – Main Screen Example Pub. No. 8009949-610 Revision A 06 DEC 2018 Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.
  • Page 44 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 45: Return To Service

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL RETURN TO SERVICE Return to Service Procedures If any component of the ADS-B system has been removed, replaced, adjusted, or the system integrity has been compromised, the following return to service procedures must be accomplished;...
  • Page 46 NXG-900 AML STC SYSTEM MAINTENANCE MANUAL Blank Page Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

  • Page 47: Appendix A - Installation Specific Information

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL – INSTALLATION SPECIFIC INFORMATION APPENDIX A AIRCRAFT SPECIFIC INFORMATION Date: AIRCRAFT INFORMATION MAKE: MODEL: SERIAL #: REG #: HEX ADDR: INFORMATION NXG-900 #1 PART #: MOD LEVEL: SERIAL #: NXG-900 #2 (if installed) PART #:...

  • Page 48: Electrical Load Analysis

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL ELECTRICAL LOAD ANALYSIS ITEMS REMOVED FROM ELECTRICAL LOAD (A) COMMENT AIRCRAFT Subtotal: ITEMS ADDED TO ELECTRICAL LOAD (A) COMMENT AIRCRAFT Subtotal: Net Change in Bus Load: [1] Use typical current draw when performing this calculation Pub.

  • Page 49: Equipment Interfaced To The Nxg-900

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL EQUIPMENT INTERFACED TO THE NXG-900 Document the equipment which is interfaced to the NXG-900(s). Use the following guidance when filling out the information.  Model(s): Write in the model number or numbers of the equipment which is interfaced to the NXG- 900.

  • Page 50: Wire Routing

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL WIRE ROUTING The following diagram depicts approximate location of all LRUs along with the wire routing for the installation of the NXG-900 throughout the aircraft structure. Pub. No. 8009949-610 06 DEC 2018 Revision A...

  • Page 51: Aircraft Wiring Diagrams

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL AIRCRAFT WIRING DIAGRAMS The installer must attach the aircraft wiring diagrams showing the equipment installed by this STC or a markup of the interconnect diagrams from the STC installation, detailing which equipment was installed and how it was connected.

  • Page 52: End Of Document

    NXG-900 AML STC SYSTEM MAINTENANCE MANUAL END OF DOCUMENT Pub. No. 8009949-610 06 DEC 2018 Revision A Use or disclosure of information on this page is subject to the restrictions in the proprietary and export notices of this document.

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