Maintenance Manual
Page 10
...Instructions for Continued Airworthiness for the Bell 206B, 206L, L-1, L-3, and L-4 rotorcraft, modified 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 ...1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 1-1 This document includes information required by the operator to adequately maintain the Garmin GRA55/5500 system as installed by the agency installing the Garmin GRA 55/5500 radar altimeter system under the GRA 55/5500 STC. POI:Principal Operations...
...Instructions for Continued Airworthiness for the Bell 206B, 206L, L-1, L-3, and L-4 rotorcraft, modified 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 ...1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 1-1 This document includes information required by the operator to adequately maintain the Garmin GRA55/5500 system as installed by the agency installing the Garmin GRA 55/5500 radar altimeter system under the GRA 55/5500 STC. POI:Principal Operations...
Maintenance Manual
Page 11
..., or the information contained within, will equally apply to the GRA 55 and GRA 5500 radar altimeters. Bell Model 206L4 Maintenance Manual, Bell Document BHT-206L4-MM, Revision 16, 1 June 2012 6. Structural Repair Manual 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...
..., or the information contained within, will equally apply to the GRA 55 and GRA 5500 radar altimeters. Bell Model 206L4 Maintenance Manual, Bell Document BHT-206L4-MM, Revision 16, 1 June 2012 6. Structural Repair Manual 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...
Maintenance Manual
Page 12
... of providing the optional 50 ft callout as summarized below. GRA 55/5500 Block Diagram System Maintenance Manual GRA 55/5500 Bell 206 STC Page 2-1 The GRA 55/5500 radar altimeter may also integrate with the approved radar altimeter antennas. The GRA 55/5500 LRU which is 3.99"x3.02"x11.62" mounted, ...bonded to the avionics shelf. The two approved radar altimeter antennas are optimally located on the underside of the tailboom, separated by a minimum distance of 20" on the supplied mounting rack that are compatible with an installed Garmin GTN 6XX/7XX for quantifying Above Ground Level...
... of providing the optional 50 ft callout as summarized below. GRA 55/5500 Block Diagram System Maintenance Manual GRA 55/5500 Bell 206 STC Page 2-1 The GRA 55/5500 radar altimeter may also integrate with the approved radar altimeter antennas. The GRA 55/5500 LRU which is 3.99"x3.02"x11.62" mounted, ...bonded to the avionics shelf. The two approved radar altimeter antennas are optimally located on the underside of the tailboom, separated by a minimum distance of 20" on the supplied mounting rack that are compatible with an installed Garmin GTN 6XX/7XX for quantifying Above Ground Level...
Maintenance Manual
Page 27
... Descriptions Fault Type Fault Name Configuration N/A Zero-Foot Lock Calibration Zero-Foot Cal Description Cause Resolution GRA HW Revision Update software to Garmin for the Garmin GRA 55/5500 Radar Altimeter. Zero-Foot point is Calibration not not set to a valid ID Hardware failure Return unit to ID invalid for SW correct version for version hardware ...
... Descriptions Fault Type Fault Name Configuration N/A Zero-Foot Lock Calibration Zero-Foot Cal Description Cause Resolution GRA HW Revision Update software to Garmin for the Garmin GRA 55/5500 Radar Altimeter. Zero-Foot point is Calibration not not set to a valid ID Hardware failure Return unit to ID invalid for SW correct version for version hardware ...
Maintenance Manual
Page 36
...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 013-00378-00 ANTENNA KIT MS24693-C272 SCREW, MACHINE COUNTERSUNK .1900-32UNF 2A INCLUDED WITH 013-00378-00..., BELL 206 L SERIES, OR 206-031-309-115 WEB INSTALLATION, STA 130.00 TO 192.84, BELL 206B Figure 6-2. GRA 55/5500 Antenna Installation 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 6-3 ADDED OR EXISTING MOUNTING SHELF ASSEMBLY 0.20 4 PLCS 0.098 THROUGH 0.179-100 8 PLCS REF....
...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 013-00378-00 ANTENNA KIT MS24693-C272 SCREW, MACHINE COUNTERSUNK .1900-32UNF 2A INCLUDED WITH 013-00378-00..., BELL 206 L SERIES, OR 206-031-309-115 WEB INSTALLATION, STA 130.00 TO 192.84, BELL 206B Figure 6-2. GRA 55/5500 Antenna Installation 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page 6-3 ADDED OR EXISTING MOUNTING SHELF ASSEMBLY 0.20 4 PLCS 0.098 THROUGH 0.179-100 8 PLCS REF....
Maintenance Manual
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...01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-1 EXISTING ANTENNA MOUNTS FS 0.00 FS 130.00 FS 136.45 FS 142.33 TBS 50.22 TBS 71.44 Figure A-1. GARMIN GTN NAVIGATOR WL 0.00 GRA RADAR ALTIMETER INSTALLATION REF. EXISTING ANTENNA MOUNTS REF. ...CIRCUIT BREAKER INSTALLATION WL 51.67 REF. APPENDIX A AIRCRAFT SPECIFIC INFORMATION Figure A-1 and Figure A-2 depicts the typical location for the GRA55/5500 component locations.
...01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-1 EXISTING ANTENNA MOUNTS FS 0.00 FS 130.00 FS 136.45 FS 142.33 TBS 50.22 TBS 71.44 Figure A-1. GARMIN GTN NAVIGATOR WL 0.00 GRA RADAR ALTIMETER INSTALLATION REF. EXISTING ANTENNA MOUNTS REF. ...CIRCUIT BREAKER INSTALLATION WL 51.67 REF. APPENDIX A AIRCRAFT SPECIFIC INFORMATION Figure A-1 and Figure A-2 depicts the typical location for the GRA55/5500 component locations.
Maintenance Manual
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... Number 011-02537-05 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-Height, Steel...
... Number 011-02537-05 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-Height, Steel...
Maintenance Manual
Page 43
VIEW A OVERHEAD CONSOLE CIRCUIT BREAKER FOR GRA RADAR ALTIMETER B REF. EXISTING ROTORCRAFT OVERHEAD CONSOLE A A DETAIL B CIRCUIT BREAKER LABEL REF. LABELS FOR ADDED CIRCUIT BREAKER Figure A-4. Circuit Breaker Placard LRU GRA Power Input Rotorcraft Power on the Bell 206B and Bell 206L Series overhead circuit breaker console. EXISTING ... placards are labeled as follows: Table A-2. Figure A-4 depicts the overhead panel location in Bell 206B, 206L Series The GRA 55/5500 circuit breaker is located on Connector P55001 Label Rad Alt 190-01277-A3 Rev. 1 System Maintenance Manual...
VIEW A OVERHEAD CONSOLE CIRCUIT BREAKER FOR GRA RADAR ALTIMETER B REF. EXISTING ROTORCRAFT OVERHEAD CONSOLE A A DETAIL B CIRCUIT BREAKER LABEL REF. LABELS FOR ADDED CIRCUIT BREAKER Figure A-4. Circuit Breaker Placard LRU GRA Power Input Rotorcraft Power on the Bell 206B and Bell 206L Series overhead circuit breaker console. EXISTING ... placards are labeled as follows: Table A-2. Figure A-4 depicts the overhead panel location in Bell 206B, 206L Series The GRA 55/5500 circuit breaker is located on Connector P55001 Label Rad Alt 190-01277-A3 Rev. 1 System Maintenance Manual...
Maintenance Manual
Page 44
.... For additional details refer to the depicted routing. REF. CIRCUIT BREAKER REF. GRA 55/5500 Wire Routing in the Bell 206B, 206L Series 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-4 RADAR ALTIMETER ANTENNAS FS 0.00 FS 130.00 FS 142.33 TBS 31.8 TBS 50....22 TBS 71.44 Figure A-5. COAXIAL CABLE REF. GRA 55/5500 WIRING HARNESS WL 0.00 REF. Figure A-5 depicts the typical wire...
.... For additional details refer to the depicted routing. REF. CIRCUIT BREAKER REF. GRA 55/5500 Wire Routing in the Bell 206B, 206L Series 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-4 RADAR ALTIMETER ANTENNAS FS 0.00 FS 130.00 FS 142.33 TBS 31.8 TBS 50....22 TBS 71.44 Figure A-5. COAXIAL CABLE REF. GRA 55/5500 WIRING HARNESS WL 0.00 REF. Figure A-5 depicts the typical wire...
Maintenance Manual
Page 45
... 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...
... 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...
Maintenance Manual
Page 46
... and Antenna Locations System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-6 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 GDU 620 DISPLAY REF. REF. GARMIN GTN NAVIGATOR WL 0.00 190-01277...
... and Antenna Locations System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-6 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 GDU 620 DISPLAY REF. REF. GARMIN GTN NAVIGATOR WL 0.00 190-01277...
Maintenance Manual
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Figure A-8 depicts the location of this STC follow existing wire bundles as part of the LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206L Series rotorcraft. EXISTING ANTENNA MOUNTS REF. 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. Bell 206L Series LRU and Antenna Locations 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-7 All harnesses fabricated as depicted in Figure A-5. GRA RADAR ALTIMETER INSTALLATION REF.
Figure A-8 depicts the location of this STC follow existing wire bundles as part of the LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206L Series rotorcraft. EXISTING ANTENNA MOUNTS REF. 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. Bell 206L Series LRU and Antenna Locations 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-7 All harnesses fabricated as depicted in Figure A-5. GRA RADAR ALTIMETER INSTALLATION REF.