Garmin GRA 5500 Maintenance Manual

Garmin GRA 5500 Manual

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  • Garmin GRA 5500 | Maintenance Manual - Page 1
    System Maintenance Manual GRA 55/5500 Bell 206 STC Contains Instructions for Continued Airworthiness for Bell 206 STC 190-01277-A3 July 2014 Revision 1
  • Garmin GRA 5500 | Maintenance Manual - Page 2
    System Maintenance Manual GRA 55/5500 Bell 206 STC as installed in Bell 206B, 206L Series Reg. No. S/N Contains Instructions for Continued Airworthiness for Bell 206 STC Dwg. Number: 190-01277-A3 Rev. 1 Garmin International, Inc. 1200 E. 151st Street Olathe, Kansas 66062 USA 190-01277-A3 Rev.
  • Garmin GRA 5500 | Maintenance Manual - Page 3
    E-mail: [email protected] Garmin (Europe) Ltd. Liberty House, Hounsdown Business Park Southampton, Hampshire SO40 9LR U.K. Phone: +44 (0) 23 8052 4000 Fax: +44 (0) 23 8052 4004 Aviation Support +44 (0) 87 0850 1243 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page
  • Garmin GRA 5500 | Maintenance Manual - Page 4
    A Pagination ii through v 1-1 through 1-2 2-1 through 2-1 3-1 through 3-8 4-1 through 4-6 5-1 through 5-7 6-1 through 6-3 7-1 through 7-1 8-1 through 8-2 9-1 through 9-1 A-1 through A-7 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page C
  • Garmin GRA 5500 | Maintenance Manual - Page 5
    Garmin products. DEFINITIONS OF WARNINGS, CAUTIONS, AND NOTES WARNING Warnings are used to bring to the installer's immediate attention that not only damage to the equipment but personal injury may occur if the instruction 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page i
  • Garmin GRA 5500 | Maintenance Manual - Page 6
    6-1 6.1 Unit Installation ...6-1 6.1.1 Installation Procedure 6-1 6.1.2 Removal Procedure 6-1 6.2 Rack Installation ...6-1 6.2.1 Installation Procedure 6-1 6.2.2 Removal Procedure 6-1 6.3 Antenna Installation ...6-1 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page ii
  • Garmin GRA 5500 | Maintenance Manual - Page 7
    CONTENT CONTINUED 6.3.1 Installation Procedure 6-1 6.3.2 Removal Procedure 6-2 7 RETURN TO SERVICE PROCEDURE 7-1 7.1 Return to Service ...7-1 7.2 A AIRCRAFT SPECIFIC INFORMATION A-1 A.1 Weight and Balance ...A-5 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page iii
  • Garmin GRA 5500 | Maintenance Manual - Page 8
    3-6 Utilities Page ...3-7 GRA 55/5500 Installation 6-2 Rack Installation 6-3 GRA 55/5500 Antenna Installation 6-3 GRA STC Equipment Fuselage Station Location for Bell 206 A-1 GRA STC Equipment Fuselage Station Location for Bell 206L Series A-1 GRA 55/5500 Unit and Rack Installation in the Bell
  • Garmin GRA 5500 | Maintenance Manual - Page 9
    Intervals for GRA 55/5500 4-2 Maintenance Intervals for Antennas Replaced Under this STC 4-4 GRA 5500 Fault Descriptions 5-1 Bill of Materials A-2 Circuit Breaker Placard A-3 Weight and Balance Details A-5 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page v
  • Garmin GRA 5500 | Maintenance Manual - Page 10
    used by the agency installing the Garmin GRA 55/5500 radar altimeter system under the GRA 55/5500 STC. This document includes information required by the operator to adequately maintain the Garmin GRA55/5500 system as installed by this STC. 1.2 Scope This document provides Instructions for Continued
  • Garmin GRA 5500 | Maintenance Manual - Page 11
    :This document identifies the Instructions for Continued Airworthiness for the modification of the aircraft by the installation of the Garmin GRA 55/5500 Part 27 STC. 1.7.1 Applicability Applies to aircraft altered by the installation of the Garmin GRA 55/5500 Part 27 STC. 1.7.2 Definition of
  • Garmin GRA 5500 | Maintenance Manual - Page 12
    STC upgrades the existing functionality of the Bell 206B, 206L series aircraft avionics system as summarized below. The GRA 55/5500 radar altimeter system features: two antenna system degraded warnings. The GRA 55/5500 radar altimeter may also integrate with an installed Garmin GTN 6XX/7XX for the
  • Garmin GRA 5500 | Maintenance Manual - Page 13
    and Installing the GRA 55/5500 Retrofit Installation Tool GRA 55/5500 configuration, calibration, diagnostics, and software upgrades are performed using a personal computer (installed with Microsoft Windows XP Service Pack 3 or later) and the GRA 55/5500 Retrofit Installation Tool, Garmin part
  • Garmin GRA 5500 | Maintenance Manual - Page 14
    contains five tabbed pages, all of which can be useful in troubleshooting a problem. The pages are: Status, Configuration, Software, Diagnostics, and Utilities (See Figure 3-1). Figure 3-1. Installation Tool Page Tabs 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 3-2
  • Garmin GRA 5500 | Maintenance Manual - Page 15
    show the specific failure under that fault. Table 5-1 identifies the various unit faults that can be encountered during normal operation of the GRA 55/5500. Use Table 5-1 as a reference to determine the proper actions to take after a fault has been identified. Figure 3-2. Status Page 190-01277-A3
  • Garmin GRA 5500 | Maintenance Manual - Page 16
    button labeled "Restore Defaults to Unit" restores all settings to their default, factory state. The GRA 55 does not utilize ARINC 429 Channel 2 and that section will not be selectable. Figure 3-3. Configuration Page 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 3-4
  • Garmin GRA 5500 | Maintenance Manual - Page 17
    3.4.3 Software Page The software page (Figure 3-4) provides a list of currently installed software regions on the GRA 55/5500 as well as an interface to load new software regions to the unit. Figure 3-4. Software Page 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 3-5
  • Garmin GRA 5500 | Maintenance Manual - Page 18
    (for further diagnostic evaluation). The raw log option will be most helpful when communicating issues to Garmin Engineering. The CSV log option will be most helpful for end-users not familiar with the Diagnostics Page 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 3-6
  • Garmin GRA 5500 | Maintenance Manual - Page 19
    (where necessary). Minimum and Maximum internal temperatures experienced by the unit during operation are also displayed. Figure 3-6. Utilities Page 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 3-7
  • Garmin GRA 5500 | Maintenance Manual - Page 20
    and the antenna coaxial cables are installed and connected properly. 3. The zero-foot calibration procedure must be performed outdoors on a hard, flat surface and away from hangars, buildings, or other metal structures that may reflect the radar signal. 4. GRA 55/5500 Retrofit Installation Tool must
  • Garmin GRA 5500 | Maintenance Manual - Page 21
    4 INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 4.1 Servicing Information None. In the event of system failure, troubleshoot the GRA 55/5500 in accordance with Section 5 of this document. 4.2 Periodic Maintenance The GRA is designed to detect internal failures. A thorough self-test is executed
  • Garmin GRA 5500 | Maintenance Manual - Page 22
    items. See Section 6 for removal and replacement instructions. • GRA 55/5500 Mount Rack • GRA 55/5500 LRU • Antenna On Condition Perform an electrical bonding check as follows into their respective locations. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 4-2
  • Garmin GRA 5500 | Maintenance Manual - Page 23
    damage. If required, check and re-torque antenna fasteners 20 to 25 in-lbs, and remove and replace antenna sealant (MIL-A-46146). 4. Inspect all system connectors for FOD and check for bent, broken, or recessed pins. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 4-3
  • Garmin GRA 5500 | Maintenance Manual - Page 24
    in-lbs if required. 2. Inspect GRA55/5500 unit, unit mounting rack, and rotorcraft support structure for signs of corrosion and apparent or damage wires and ensure overall functionality of wire installation. 5. Inspect all system connectors for bent/broken Manual GRA 55/5500 Bell 206 STC Page 4-4
  • Garmin GRA 5500 | Maintenance Manual - Page 25
    using Antenna Installation procedures in Section 6.3. Any reworked antenna installation shall have a resistance of less than or equal to 2.5 milliohms. Re-seal the antenna as per methods specified in BHT-ELEC-SPM CHP 8. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page
  • Garmin GRA 5500 | Maintenance Manual - Page 26
    every antenna. 12 months, whichever comes Visual inspection of the rotorcraft exterior skin around first. installed antenna: Manual For Bell Model 206 Series Helicopters, BHT-206-SRM- 1, Section 3 for applicable repairs. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC
  • Garmin GRA 5500 | Maintenance Manual - Page 27
    INFORMATION 5.1 GRA 55/5500 General Troubleshooting This section provides troubleshooting information for the Garmin GRA 55/5500 Radar Altimeter. All faulty units must be returned to Garmin for repair. No internal or comprehensive unit troubleshooting is possible at the dealer service center due
  • Garmin GRA 5500 | Maintenance Manual - Page 28
    to Garmin for service. The self-test signal is not within the acceptable frequency range Improper antenna connections Internal failure Check antenna installation and all persists, return unit to Garmin for service. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 5-2
  • Garmin GRA 5500 | Maintenance Manual - Page 29
    by sensor Internal watchdog communication error Resolution Cycle power to unit. If fault persists, return unit to Garmin for service. Cycle power to unit. If fault persists, return unit to Garmin for service. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 5-3
  • Garmin GRA 5500 | Maintenance Manual - Page 30
    power supply failure If fault persists, download the assert log and send to Garmin for diagnosis. +80 V backup power rail outputs improper voltage Aircraft power input the assert log and send to Garmin for diagnosis. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 5-4
  • Garmin GRA 5500 | Maintenance Manual - Page 31
    power supply failure If fault persists, download the assert log and send to Garmin for diagnosis. Aircraft power input voltage out of range Check aircraft power supply. assert log and send to Garmin for diagnosis. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 5-5
  • Garmin GRA 5500 | Maintenance Manual - Page 32
    the assert log and send to Garmin for diagnosis. Check antenna installation and all cable connections. Download the assert log and send to Garmin for diagnosis. If fault persists, return unit to Garmin for service. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 5-6
  • Garmin GRA 5500 | Maintenance Manual - Page 33
    Cause Installed unit location is too Garmin for service. [1] Fault can be found in the Power on Self Test (POST) fault list and in normal operational mode fault list. Review Table 5-1 fault tree for identification. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC
  • Garmin GRA 5500 | Maintenance Manual - Page 34
    star pattern to 20-25 in lbs. Torque should be applied evenly across all fasteners to avoid deformation of the mounting area. 5. Ensure that the antenna base and antenna mount are in continuous contact with the gasket. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 6-1
  • Garmin GRA 5500 | Maintenance Manual - Page 35
    of the antenna where it meets the antenna mount using a non-metallic scraper. 2. Remove the hardware retaining the antenna in place. 3. Lower the antenna enough RACK 2 PLACES Figure 6-1. GRA 55/5500 Installation 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 6-2
  • Garmin GRA 5500 | Maintenance Manual - Page 36
    -2002 RADAR ALTIMETER ANTENNA INCLUDED WITH 013-00378-00 ANTENNA KIT MS24693-C272 SCREW, MACHINE COUNTERSUNK .1900-32UNF 2A INCLUDED WITH 013-00378-00 ANTENNA KIT. TYP. 4 PLCS Figure 6-3. GRA 55/5500 Antenna Installation 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page
  • Garmin GRA 5500 | Maintenance Manual - Page 37
    installed display with the GRA 55/5500 and display powered on. If radar altitude is not displayed, verify correct configuration. 7.2 Maintenance Records After conducting required return-to-service on the aircraft. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 7-1
  • Garmin GRA 5500 | Maintenance Manual - Page 38
    Garmin with questions regarding this equipment and its installation. Garmin Customer Support may be contacted during normal business hours via telephone 913-397-8200 or from the Garmin web site at www.flyGarmin.com. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page
  • Garmin GRA 5500 | Maintenance Manual - Page 39
    obligates the aircraft operator to include the maintenance information provided by this document in the operator's aircraft maintenance manual and/ or the operator's rotorcraft scheduled maintenance program. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 8-2
  • Garmin GRA 5500 | Maintenance Manual - Page 40
  • Garmin GRA 5500 | Maintenance Manual - Page 41
    5500 component locations. CIRCUIT BREAKER INSTALLATION WL 51.67 REF. GARMIN GDU 620 DISPLAY REF. GARMIN GTN NAVIGATOR WL 0.00 GRA RADAR ALTIMETER INSTALLATION REF. EXISTING AVIONICS SHELF REF. EXISTING ANTENNA MOUNTS FS 0.00 FS 130.00 FS 136.45 FS 142.33 TBS 50.22 TBS 71.44 Figure A-1. GRA STC
  • Garmin GRA 5500 | Maintenance Manual - Page 42
    GRA Radar Altimeter Rack, Mounting, GRA Radar Altimeter Screw, Washer Head, 0.1900-32 UNF-3A, 7/16" Long Nut, Self-Locking, Plate, Two-Lug, Low-Height, Steel Rivet, Solid, Countersunk 100 Deg, Precision Head QTY (1) 1 1 4 4 8 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC
  • Garmin GRA 5500 | Maintenance Manual - Page 43
    BREAKER FOR GRA RADAR ALTIMETER B REF. EXISTING ROTORCRAFT CIRCUIT BREAKER PANEL REF. EXISTING ROTORCRAFT OVERHEAD CONSOLE A A DETAIL B CIRCUIT BREAKER LABEL REF. LABELS FOR ADDED CIRCUIT BREAKER Figure A-4. Overhead Circuit Breaker Panel in Bell 206B, 206L Series The GRA 55/5500 circuit
  • Garmin GRA 5500 | Maintenance Manual - Page 44
    , minor deviations may exist to the depicted routing. For additional details refer to the GRA 55/5500 installation manual. REF. CIRCUIT BREAKER REF. COAXIAL CABLE REF. GRA 55/5500 WIRING HARNESS WL 0.00 REF. RADAR ALTIMETER ANTENNAS FS 0.00 FS 130.00 FS 142.33 TBS 31.8 TBS 50.22 TBS
  • Garmin GRA 5500 | Maintenance Manual - Page 45
    ) 011-02537-05 3.5 [1] 161.20 564.20 -6.98 4 GRA 5500 Radar Altimeter (Bell 206L Series) 011-02537-00 3.5 [1] -24.43 [1] Weight specified includes the unit, install rack, and backplate assembly with connectors. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-5
  • Garmin GRA 5500 | Maintenance Manual - Page 46
    GRA RADAR ALTIMETER INSTALLATION FS 0.00 FS 130.00 FS 136.45 FS 142.33 TBS 50.22 TBS 71.44 CIRCUIT BREAKER INSTALLATION WL 51.67 REF. GARMIN GDU 620 DISPLAY REF. GARMIN GTN NAVIGATOR WL 0.00 190-01277-A3 Rev. 1 Figure A-7. Bell 206B LRU and Antenna Locations System Maintenance Manual GRA 55/5500
  • Garmin GRA 5500 | Maintenance Manual - Page 47
    of the LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206L Series rotorcraft. All harnesses fabricated as part of this STC follow existing wire bundles as depicted in Figure A-5. GRA RADAR ALTIMETER INSTALLATION REF. EXISTING ANTENNA MOUNTS REF. EXISTING
  • Garmin GRA 5500 | Maintenance Manual - Page 48
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190-01277-A3
July 2014
Revision 1
System Maintenance Manual
GRA 55/5500 Bell 206 STC
Contains Instructions for Continued Airworthiness
for Bell 206 STC