Maintenance Manual
Page 10
... for Continued Airworthiness for the Bell 206B, 206L, L-1, L-3, and L-4 rotorcraft, modified by the agency installing the Garmin GRA 55/5500 radar altimeter system under the GRA 55/5500 STC. FMCW: Frequency Modulated Continuous Wave 8. ICA:Instructions for Continued Airworthiness 10. LRU:Line Replaceable Unit 11. PMI...the suitability of the documents for the ICA. 1.5 Definitions The following terminology is used by the installation of the Garmin GRA 55/5500 STC. 1.3 Document Control This document is released, archived, and controlled in compliance with STC engineering data when applying...
... for Continued Airworthiness for the Bell 206B, 206L, L-1, L-3, and L-4 rotorcraft, modified by the agency installing the Garmin GRA 55/5500 radar altimeter system under the GRA 55/5500 STC. FMCW: Frequency Modulated Continuous Wave 8. ICA:Instructions for Continued Airworthiness 10. LRU:Line Replaceable Unit 11. PMI...the suitability of the documents for the ICA. 1.5 Definitions The following terminology is used by the installation of the Garmin GRA 55/5500 STC. 1.3 Document Control This document is released, archived, and controlled in compliance with STC engineering data when applying...
Maintenance Manual
Page 11
... modification of the aircraft by the installation of the Garmin GRA 55/5500 Part 27 STC. 1.7.2 Definition of Abbreviations See Section 1.5 and Section 1.6. 1.7.3 Precautions None. 1.7.4 Units of the Garmin GRA 55/5500 Part 27 STC. 1.7.1 Applicability Applies to the GRA 55 and GRA 5500 radar altimeters. Bell Model 206L1 Maintenance Manual, Bell Document BHT...-MM, Revision 12, 1 June 2012 2. Also, except where specifically noted, references made to the 'GRA' will be included in the aircraft's permanent records. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 1-2
... modification of the aircraft by the installation of the Garmin GRA 55/5500 Part 27 STC. 1.7.2 Definition of Abbreviations See Section 1.5 and Section 1.6. 1.7.3 Precautions None. 1.7.4 Units of the Garmin GRA 55/5500 Part 27 STC. 1.7.1 Applicability Applies to the GRA 55 and GRA 5500 radar altimeters. Bell Model 206L1 Maintenance Manual, Bell Document BHT...-MM, Revision 12, 1 June 2012 2. Also, except where specifically noted, references made to the 'GRA' will be included in the aircraft's permanent records. 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 1-2
Maintenance Manual
Page 12
The GRA 55/5500 LRU which is 3.99"x3.02"x11.62" mounted, is electrically bonded to the avionics shelf. The two approved radar altimeter antennas are compatible with an installed Garmin GTN 6XX/7XX for quantifying Above Ground Level (AGL) altitude information, and interface capabilities to ... (FDS) for pilot display of aircraft altitude and system degraded warnings. GRA 55/5500 Block Diagram System Maintenance Manual GRA 55/5500 Bell 206 STC Page 2-1 The GRA 55/5500 radar altimeter system features: two antenna architecture for transmitting and receiving radio waves for altitude...
The GRA 55/5500 LRU which is 3.99"x3.02"x11.62" mounted, is electrically bonded to the avionics shelf. The two approved radar altimeter antennas are compatible with an installed Garmin GTN 6XX/7XX for quantifying Above Ground Level (AGL) altitude information, and interface capabilities to ... (FDS) for pilot display of aircraft altitude and system degraded warnings. GRA 55/5500 Block Diagram System Maintenance Manual GRA 55/5500 Bell 206 STC Page 2-1 The GRA 55/5500 radar altimeter system features: two antenna architecture for transmitting and receiving radio waves for altitude...
Maintenance Manual
Page 27
... the unit by utilizing the following methods: • Checking the status of zero-foot signal is possible at the dealer service center due to Garmin for the Garmin GRA 55/5500 Radar Altimeter. Note there are no assert log entries for this fault. Note there are no assert log entries for this fault. 190-01277-A3 Rev...
... the unit by utilizing the following methods: • Checking the status of zero-foot signal is possible at the dealer service center due to Garmin for the Garmin GRA 55/5500 Radar Altimeter. Note there are no assert log entries for this fault. Note there are no assert log entries for this fault. 190-01277-A3 Rev...
Maintenance Manual
Page 36
... 206B Figure 6-2. REF. GRA 55/5500 Antenna Installation 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 6-3 Rack Installation EXISTING ANTENNA MOUNTS TBS 31.80 TBS 50.22 TBS 71.44 S67-200222 CONDUCTIVE GASKET, 0.020 INCH THICK INCLUDED IN ANTENNA KIT GARMIN P/N 013-00378-00 (2X) S67-2002 RADAR ALTIMETER ANTENNA INCLUDED WITH...
... 206B Figure 6-2. REF. GRA 55/5500 Antenna Installation 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 6-3 Rack Installation EXISTING ANTENNA MOUNTS TBS 31.80 TBS 50.22 TBS 71.44 S67-200222 CONDUCTIVE GASKET, 0.020 INCH THICK INCLUDED IN ANTENNA KIT GARMIN P/N 013-00378-00 (2X) S67-2002 RADAR ALTIMETER ANTENNA INCLUDED WITH...
Maintenance Manual
Page 41
...71.44 Figure A-1. GARMIN GDU 620 DISPLAY REF. GARMIN GTN NAVIGATOR WL 0.00 GRA RADAR ALTIMETER INSTALLATION REF. EXISTING AVIONICS SHELF REF. CIRCUIT BREAKER INSTALLATION WL 51.67 REF. EXISTING ANTENNA MOUNTS REF. GRA STC Equipment Fuselage Station Location for the GRA55/5500 component locations. APPENDIX ...location for Bell 206L Series 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-1 GRA STC Equipment Fuselage Station Location for Bell 206B CIRCUIT BREAKER INSTALLATION GRA RADAR ALTIMETER INSTALLATION FS 0.00 FS 155.00 FS 161.45 FS 167.33 ...
...71.44 Figure A-1. GARMIN GDU 620 DISPLAY REF. GARMIN GTN NAVIGATOR WL 0.00 GRA RADAR ALTIMETER INSTALLATION REF. EXISTING AVIONICS SHELF REF. CIRCUIT BREAKER INSTALLATION WL 51.67 REF. EXISTING ANTENNA MOUNTS REF. GRA STC Equipment Fuselage Station Location for the GRA55/5500 component locations. APPENDIX ...location for Bell 206L Series 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-1 GRA STC Equipment Fuselage Station Location for Bell 206B CIRCUIT BREAKER INSTALLATION GRA RADAR ALTIMETER INSTALLATION FS 0.00 FS 155.00 FS 161.45 FS 167.33 ...
Maintenance Manual
Page 42
Table A-1 provides the bill of materials in the Bell 206B, 206L Series Table A-1. GRA 55/5500 Unit and Rack Installation in reference to the bill of Materials Item No. REF. Bill of materials. EXISTING...1 011-02537-00 2 015-2573-01 3 015-2567-00 4 AN525-10R7 5 MS21047-3 6 MS20470AD3-3 Source Garmin Garmin Garmin Best Source Best Source Best Source Description GRA 55 Radar Altimeter Unit GRA 5500 Radar Altimeter Unit Connector Kit, 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...
Table A-1 provides the bill of materials in the Bell 206B, 206L Series Table A-1. GRA 55/5500 Unit and Rack Installation in reference to the bill of Materials Item No. REF. Bill of materials. EXISTING...1 011-02537-00 2 015-2573-01 3 015-2567-00 4 AN525-10R7 5 MS21047-3 6 MS20470AD3-3 Source Garmin Garmin Garmin Best Source Best Source Best Source Description GRA 55 Radar Altimeter Unit GRA 5500 Radar Altimeter Unit Connector Kit, 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...
Maintenance Manual
Page 43
... The GRA 55/5500 circuit breaker is located on Connector P55001 Label Rad Alt 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-3 Circuit Breaker Placard LRU GRA Power Input... Rotorcraft Power on the Bell 206B and Bell 206L Series overhead circuit breaker console. Equipment circuit breaker placards are labeled as follows: Table A-2. Overhead Circuit Breaker Panel in the Bell 206B, 206L Series. EXISTING ROTORCRAFT OVERHEAD CONSOLE A A DETAIL B CIRCUIT BREAKER LABEL REF. VIEW A OVERHEAD CONSOLE CIRCUIT BREAKER FOR GRA RADAR ALTIMETER...
... The GRA 55/5500 circuit breaker is located on Connector P55001 Label Rad Alt 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-3 Circuit Breaker Placard LRU GRA Power Input... Rotorcraft Power on the Bell 206B and Bell 206L Series overhead circuit breaker console. Equipment circuit breaker placards are labeled as follows: Table A-2. Overhead Circuit Breaker Panel in the Bell 206B, 206L Series. EXISTING ROTORCRAFT OVERHEAD CONSOLE A A DETAIL B CIRCUIT BREAKER LABEL REF. VIEW A OVERHEAD CONSOLE CIRCUIT BREAKER FOR GRA RADAR ALTIMETER...
Maintenance Manual
Page 44
... include the coaxial cable installation for the GRA 55/5500 system, to the depicted routing. CIRCUIT BREAKER REF. Figure A-5 depicts the typical wire harness installation for the antennas. For additional details refer to the GRA 55/5500 installation manual. RADAR ALTIMETER ANTENNAS FS 0.00 FS 130.00 FS... 142.33 TBS 31.8 TBS 50.22 TBS 71.44 Figure A-5. REF. COAXIAL CABLE REF. GRA 55/5500 WIRING HARNESS WL 0.00 REF. GRA 55/5500 Wire Routing in the Bell 206B...
... include the coaxial cable installation for the GRA 55/5500 system, to the depicted routing. CIRCUIT BREAKER REF. Figure A-5 depicts the typical wire harness installation for the antennas. For additional details refer to the GRA 55/5500 installation manual. RADAR ALTIMETER ANTENNAS FS 0.00 FS 130.00 FS... 142.33 TBS 31.8 TBS 50.22 TBS 71.44 Figure A-5. REF. COAXIAL CABLE REF. GRA 55/5500 WIRING HARNESS WL 0.00 REF. GRA 55/5500 Wire Routing in the Bell 206B...
Maintenance Manual
Page 45
... Number Weight Longitudinal (LB) ARM (IN) Moment Lateral ARM (IN) Moment 1 GRA 55 Radar Altimeter (Bell 206B) 011-02537-05 3.5 [1] 136.20 476.70 -6.98 2 GRA 5500 Radar Altimeter (Bell 206B) 011-02537-00 3.5 [1] -24.43 3 GRA 55 Radar Altimeter (Bell 206L Series) 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...
... Number Weight Longitudinal (LB) ARM (IN) Moment Lateral ARM (IN) Moment 1 GRA 55 Radar Altimeter (Bell 206B) 011-02537-05 3.5 [1] 136.20 476.70 -6.98 2 GRA 5500 Radar Altimeter (Bell 206B) 011-02537-00 3.5 [1] -24.43 3 GRA 55 Radar Altimeter (Bell 206L Series) 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...
Maintenance Manual
Page 46
...LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206B rotorcraft. EXISTING AVIONICS SHELF 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 GTN NAVIGATOR WL 0.00 ...190-01277-A3 Rev. 1 Figure A-7. EXISTING ANTENNA MOUNTS REF. GARMIN GDU 620 DISPLAY REF. ...
...LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206B rotorcraft. EXISTING AVIONICS SHELF 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 GTN NAVIGATOR WL 0.00 ...190-01277-A3 Rev. 1 Figure A-7. EXISTING ANTENNA MOUNTS REF. GARMIN GDU 620 DISPLAY REF. ...
Maintenance Manual
Page 47
Bell 206L Series LRU and Antenna Locations 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-7 EXISTING ANTENNA MOUNTS REF. Figure A-8 depicts the location of this STC follow existing wire bundles as depicted in Figure A-5. All harnesses fabricated as part of the LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206L Series rotorcraft. EXISTING AVIONICS SHELF FS 0.00 FS 155.00 FS 161.45 FS 167.33 TBS 50.22 TBS 71.44 CIRCUIT BREAKER INSTALLATION WL 51.67 WL 0.00 Figure A-8. GRA RADAR ALTIMETER INSTALLATION REF.
Bell 206L Series LRU and Antenna Locations 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-7 EXISTING ANTENNA MOUNTS REF. Figure A-8 depicts the location of this STC follow existing wire bundles as depicted in Figure A-5. All harnesses fabricated as part of the LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206L Series rotorcraft. EXISTING AVIONICS SHELF FS 0.00 FS 155.00 FS 161.45 FS 167.33 TBS 50.22 TBS 71.44 CIRCUIT BREAKER INSTALLATION WL 51.67 WL 0.00 Figure A-8. GRA RADAR ALTIMETER INSTALLATION REF.