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L3 Communications GH-3100 Pilot's Manual

Electronic standby instrument system
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Pilot's Guide
for the
Electronic Standby
Instrument System
Model GH-3100
Software Version 1.x and 3.x

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Summary of Contents for L3 Communications GH-3100

  • Page 1 Pilot’s Guide for the Electronic Standby Instrument System Model GH-3100 Software Version 1.x and 3.x...
  • Page 2 AFM takes precedence over this guide. Disclaimer This Pilot’s Guide is subject to change without notice. The illustrations in this guide are typical to the GH-3100, but may not exactly match your configuration options. Export Notice This data is provided at no charge, or at cost, to the public and is considered publicly available, No License Required (NLR) as defined in the Export Administration Regulations (EAR) Part 734.7-11.

  • Page 3: Introduction

    AMLCD. It’s like having a complete standby EFIS suite in a single 3-inch display. Designed by the world’s leader in standby instrumentation, the FAA TSO certified GH-3100 offers the ability to visually match the look and format of your aircraft’s primary EFIS.

  • Page 4: Table Of Contents

    Sensor Alignment Mode ............. 20 Normal Operating Mode (Invalidity Indications) ....21 Troubleshooting ..............26 Specifications ..............28 Notes..................30 Pilot’s Guide for the GH-3100 Electronic Standby Instrument System (Software Version 1.x & 3.x) Part No. 501-1860-xxx1 & 501-1860-xxx3 © Copyright 2003, 2007, 2009 L-3 Avionics Systems, Inc.

  • Page 5: Purpose

    This Pilot’s Guide provides the flight crew with operation instructions, quick reference troubleshooting assistance and typical display examples so the cockpit crew can quickly and easily operate the GH-3100. Actual appearance of display arrangements and colors are dependent on the unit’s specific configuration as it is applied in specific aircraft installations.

  • Page 6: Equipment Description

    When the GH-3100 is removed from the aircraft, the DCM remains in the aircraft, attached to the aircraft wiring harness that mates with the GH-3100, eliminating the need to re-configure a replaced GH-3100 Line Replaceable Unit (LRU).
  • Page 7 Purpose Equipment Description (cont.) The GH-3100 is packaged in a 3 ATI housing, which needs only 11 inches of length behind the instrument panel. At a maximum weight of 4 pounds, the GH-3100 offers exceptional weight savings by combining the functions of three existing instruments into one. The weight decrease is up to half the weight of today’s typical electromechanical systems.
  • Page 8 The MAG-3000 is comprised of a 3-axis magnetic sensor that converts magnetic field data into a digital format for the GH-3100 indicator. Heading information is displayed on a horizontal tape at the bottom of the GH-3100 display.

  • Page 9: Screen Features

    Screen Features Screen Features Menu Access The Model GH-3100 ESIS, regardless of configuration, offers crew members the ability to toggle, adjust and initiate various display elements via a Menu. To access the Menu, press the Menu Access Button located below the Display Screen.
  • Page 10 Screen Features GH-3100 Menu Access (cont.) To select a highlighted Menu item, press the Adjustment Knob located below and to the right of the Display Screen. A Sub-Menu provides additional adjustments and selections. To select or adjust a value in the Sub-Menu, rotate the Adjustment Knob.
  • Page 11 GH-3100 Screen Features Menu Access (cont.) Press Menu Access Button, Rotate Adjustment Knob to... FAST ERECT ... press knob to initiate SET BRIGHTNESS OFFSET ... press knob for sub-menu, rotate knob to adjust, press knob to finish FAST ALIGN ... press knob to initiate *SET HEADING ...

  • Page 12: Barometric Setting

    Screen Features GH-3100 Barometric Setting The Barometric Setting is indicated at the uppermost, right-hand corner of the Display Screen. Barometric Setting adjustments are made by rotating the Adjustment Knob located below and to the right of the Display Screen. To establish Standard Pressure Barometric Setting, (29.92 InHg/1013 HPA or MB), push the Adjustment Knob.

  • Page 13: Attitude Information

    GH-3100 Screen Features Attitude Information A i r c r a f t A t t i t u d e Information is provided in the center portion of the Display Screen. Pitch and roll data is generated by internal sensors that produce recognizable attitude indications.
  • Page 14 (when the unit is configured for Heading). These “extended” conditions may increase the possibility for erroneous Attitude and Heading displays. The GH-3100 will self-correct for small Attitude errors, or the flight crew may initiate a FAST ERECT from the Menu (see page 7) when the aircraft has returned to straight and level, non-accelerated flight.

  • Page 15: Air Data Information

    GH-3100 Screen Features Air Data Information The GH-3100 has the capability to display Air Data Information. Air Data information includes aircraft Altitude, Airspeed, and Vertical Speed information. Airspeed and Altitude information is displayed in a scrolling “Tape” format with “Digital Readout” windows...
  • Page 16 GH-3100 Air Data Information (cont.) Airspeed Information is located on the left side of the Display Screen. The appearance of the Digital Readouts and Airspeed Tapes is dependent upon the specific configuration for the GH-3100. Possible Airspeed Readouts Pilot’s Guide...

  • Page 17: Navigational Information

    GH-3100 Screen Features Navigation Information Navigation Information is displayed in the center portion of the Display Screen, sharing space with the Attitude Information. Navigation displays are designed to visually match the look and format of the primary navigational systems in the cockpit.
  • Page 18 Screen Features GH-3100 Navigation Information (cont.) Pilot’s Guide...
  • Page 19 GH-3100 Screen Features Navigation Information (cont.) Attitude Declutter, the removal of Navigation Information from the screen, will occur when the aircraft exceeds ±65° of center in roll and/or +30°/-20° of center in pitch. Navigation Information will be restored when the aircraft no longer exceeds these conditions.

  • Page 20: Heading Information

    Heading...” option and align the Heading Tape to the cockpit reference compass. See page 7. If the GH-3100 is configured for Navigation capabilities and the Menu selections are made for VOR, ILS, FMS/NAV or TACAN, the Course Arrow is indicated on the Heading tape.

  • Page 21: Start-Up And Self Test

    Start-Up and Self Test Power ON Self Test Mode Power application to the GH-3100 starts an automatic process of self- diagnostics prior to normal operations. After power application the Display Screen will be blank approximately 15 seconds while the tests are performed.
  • Page 22 GH-3100 Start-Up and Self Test (cont.) Identification Mode (cont.) Should the GH-3100 detect a failure, the Identification Screen will appear with either a clearly stated error message or an error code. Failures are either System Failures or Function Failures. System...
  • Page 23 GH-3100 Start-Up and Self Test Start-Up and Self Test (cont.) Identification Mode (cont.) Power-Up test will occasionally encounter an internal fault condition that will result in the display of a “System Test Failure” error message. Some of the faults are unit self-correcting.

  • Page 24: Sensor Alignment Mode

    Start-Up and Self Test GH-3100 Start-Up and Self Test (cont.) Sensor Alignment Mode If no System Failures are detected, the unit will then display the FAIL indication with the message ALIGNING and a completion timer/ counter below the Aircraft Symbol.

  • Page 25: Normal Operating Mode (Invalidity Indications)

    GH-3100 Start-Up and Self Test Start-Up and Self Test (cont.) Normal Operating Mode While the GH-3100 is operating normally, the system continues to perform diagnostic self-tests to assure the crew of accurate information. Invalidities are display indications that reveal a loss of information from their associated sources.
  • Page 26 ATT FAIL in the center of the Display Screen during the system start-up process (see page 19) and/or when the GH-3100’s Background Self-Test detect erroneous attitude information. Heading Tape Invalidity and Attitude Failure will appear as either of the examples offered here dependent upon unit configuration.
  • Page 27 Background Self-Test will cause Navigation Indicators to disappear or display with dashes (color dependent on unit configuration) in the navigation value field. Because Navigation information displayed on the GH-3100 originates from the aircraft’s primary navigational units, those units must be checked when invalidities occur.
  • Page 28 Test Failure” error message combined with the Red X. Bring the aircraft to straight and level, non-accelerated flight, then reset/recycle the power to the GH-3100. Repeated unsuccessful resets confirms that the unit requires service and/or repair. NOTE: Use the provided Notes pages (see page 30) to record the date and time and error message/code.
  • Page 29 Start-Up and Self Test (cont.) Normal Operating Mode (cont.) In the event that the GH-3100’s diagnostic capabilities detect an internal condition which cannot be corrected automatically, the system will prompt the flight crew to intervene to prevent any loss of display. Bring the aircraft to straight and level, non-accelerated flight, then reset/recycle the power to the GH-3100.

  • Page 30: Troubleshooting

    Start-Up and Self Test GH-3100 Troubleshooting BIG RED X displays across the screen. If the Red X appears with the Identification Screen during the start-up process, perform a Power Reset. Repeated unsuccessful attempts indicates the need for repair. Report the failure to Avionics Systems.
  • Page 31 GH-3100. Identification Screen displays “Fan Failure”. This message indicates a function failure related to the operation of the cooling fan. The GH-3100 will continue the “Start-Up” process, remove the message when completed, then proceed with operation. No action is required.

  • Page 32: Specifications

    Specifications GH-3100 Specifications GH-3100 ESIS and DCM-3100 Detachable Configuration Module TSO No.: C2d, C4c, C6d, C8d, C10b, C34e, C36e, C40c, C46a, C66c, C113, C115b MAG-3000 Magnetometer TSO No.: C6d GH-3100 Electronic Standby Indicator Power Starting: (warm up) 50.0 watts at +28.0 Vdc, continues Requirements for first five minutes of operation.
  • Page 33 GH-3100 Specifications Specifications DCM-3100 Detachable Configuration Module Power 5.0 Vdc Regulated from GH-3100 via J2 Requirements: Connector. Weight: 0.05 Lbs. (0.023 Kg) maximum. Service Life: The Module has unlimited service life. Repairability: Repairs will be performed at the factory. Scheduled No scheduled maintenance interval applicable.

  • Page 34: Notes

    Notes Pilot’s Guide...
  • Page 36 TP-560 Rev F (07-22-09) L-3 Avionics Systems, Inc. GH-3100 5353 52nd Street, S.E. Software Version 1.x & 3.x Grand Rapids, MI USA 49512-9704 Telephone (800) 453-6600 International (616) 949-6600 www.as.l-3com.com...

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