Maintenance Manual
Page 10
... STC. 1.2 Scope This document provides Instructions 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. NAV:Navigation 12. AEG:Aircraft Evaluation Group 3. BIT:Built-In Test 5. ICA:Instructions for Continued Airworthiness and show compliance with requirements of...
... STC. 1.2 Scope This document provides Instructions 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. NAV:Navigation 12. AEG:Aircraft Evaluation Group 3. BIT:Built-In Test 5. ICA:Instructions for Continued Airworthiness and show compliance with requirements of...
Maintenance Manual
Page 11
...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 Abbreviations See Section 1.5 and Section 1.6. ...MM, Revision 33, 1 June 2012 4. Also, except where specifically noted, references made to the 'GRA' will equally apply to the GRA 55 and GRA 5500 radar altimeters. Structural Repair Manual for all Bell Helicopter Commercial Products, BHT-ELEC- 1.6 Terminology Except where specifically noted,...
...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 Abbreviations See Section 1.5 and Section 1.6. ...MM, Revision 33, 1 June 2012 4. Also, except where specifically noted, references made to the 'GRA' will equally apply to the GRA 55 and GRA 5500 radar altimeters. Structural Repair Manual for all Bell Helicopter Commercial Products, BHT-ELEC- 1.6 Terminology Except where specifically noted,...
Maintenance Manual
Page 12
... quantifying Above Ground Level (AGL) altitude information, and interface capabilities to the avionics shelf. 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 quantities, remote ... the optional 50 ft callout as summarized below. The GRA 55/5500 LRU which is 3.99"x3.02"x11.62" mounted, is located on the supplied mounting rack that are compatible with an installed Garmin GTN 6XX/7XX for the purpose of aircraft altitude and...
... quantifying Above Ground Level (AGL) altitude information, and interface capabilities to the avionics shelf. 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 quantities, remote ... the optional 50 ft callout as summarized below. The GRA 55/5500 LRU which is 3.99"x3.02"x11.62" mounted, is located on the supplied mounting rack that are compatible with an installed Garmin GTN 6XX/7XX for the purpose of aircraft altitude and...
Maintenance Manual
Page 27
... the status of zero-foot signal is Calibration not not set to a valid ID Hardware failure Return unit to the need for the Garmin GRA 55/5500 Radar Altimeter. 5 TROUBLESHOOTING INFORMATION 5.1 GRA 55/5500 General Troubleshooting This section provides troubleshooting information for specialized unit test setups and test software. Zero-Foot point is larger/smaller than allowable...
... the status of zero-foot signal is Calibration not not set to a valid ID Hardware failure Return unit to the need for the Garmin GRA 55/5500 Radar Altimeter. 5 TROUBLESHOOTING INFORMATION 5.1 GRA 55/5500 General Troubleshooting This section provides troubleshooting information for specialized unit test setups and test software. Zero-Foot point is larger/smaller than allowable...
Maintenance Manual
Page 36
...-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 ANTENNA KIT. REF. GRA 55/5500 Antenna Installation 190-01277-A3 Rev. 1 System Maintenance Manual...
...-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 ANTENNA KIT. REF. GRA 55/5500 Antenna Installation 190-01277-A3 Rev. 1 System Maintenance Manual...
Maintenance Manual
Page 41
GARMIN GDU 620 DISPLAY REF. GRA STC Equipment Fuselage Station Location for Bell 206L Series 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-1 EXISTING AVIONICS SHELF Figure A-2. 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...
GARMIN GDU 620 DISPLAY REF. GRA STC Equipment Fuselage Station Location for Bell 206L Series 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-1 EXISTING AVIONICS SHELF Figure A-2. 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...
Maintenance Manual
Page 42
... 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
... BREAKER FOR GRA RADAR ALTIMETER B REF. LABELS FOR ADDED CIRCUIT BREAKER Figure A-4. 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 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. EXISTING ...
... BREAKER FOR GRA RADAR ALTIMETER B REF. LABELS FOR ADDED CIRCUIT BREAKER Figure A-4. 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 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. EXISTING ...
Maintenance Manual
Page 44
RADAR ALTIMETER ANTENNAS FS 0.00 FS 130.00 FS 142.33 TBS 31.8 TBS 50.22 TBS 71.44 Figure A-5. For additional details refer to include the coaxial cable installation for the GRA 55/5500 system, to the GRA 55/5500 installation manual. COAXIAL CABLE 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 REF. CIRCUIT BREAKER REF....
RADAR ALTIMETER ANTENNAS FS 0.00 FS 130.00 FS 142.33 TBS 31.8 TBS 50.22 TBS 71.44 Figure A-5. For additional details refer to include the coaxial cable installation for the GRA 55/5500 system, to the GRA 55/5500 installation manual. COAXIAL CABLE 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 REF. CIRCUIT BREAKER REF....
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
... DISPLAY REF. 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. REF. EXISTING ANTENNA MOUNTS REF. Figure A-7...this STC follow existing wire bundles as depicted in Figure A-5. Bell 206B LRU and Antenna Locations System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-6 All harnesses fabricated as part of the LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206B rotorcraft.
... DISPLAY REF. 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. REF. EXISTING ANTENNA MOUNTS REF. Figure A-7...this STC follow existing wire bundles as depicted in Figure A-5. Bell 206B LRU and Antenna Locations System Maintenance Manual GRA 55/5500 Bell 206 STC Page A-6 All harnesses fabricated as part of the LRUs and antennas for the GRA 55/5500 throughout the aircraft structure for the Bell 206B rotorcraft.
Maintenance Manual
Page 47
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. Figure A-8 depicts the location of this STC follow existing wire bundles as depicted in Figure A-5. GRA RADAR ALTIMETER INSTALLATION REF. EXISTING ANTENNA MOUNTS 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 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. Figure A-8 depicts the location of this STC follow existing wire bundles as depicted in Figure A-5. GRA RADAR ALTIMETER INSTALLATION REF. EXISTING ANTENNA MOUNTS 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 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.