var server_data=[{"id":"1","name":"Approved Fixture Types","cat":"both","order":"10","items":[{"id":"1","section_id":"1","sub_section":"","faa_style":"","pdf_page":"60","pdf_print_page":"A-1","url_slug":"approved-fixtures","sort":"10","content_img":"","content_prev_img":"","content_caption":"","template":"table_a-1_approved_fixtures.html","changes":[{"id":"45","item_id":"1","text":"New Section in Advisory Circular No: 70\/7460-1L - Dec. 12, 2015","sort":"10"},{"id":"46","item_id":"1","text":"L-810 Flashing Red (30FPM) light was inadvertently left off this list, but is approved for use in Advisory Circular No: 70\/7460-1L","sort":"20"},{"id":"47","item_id":"1","text":"L-864 Medium Intensity Red Lighting is inadvertently shown with allowable FPM rates of 20 to 40. That has been changed to 30 FPM","sort":"30"}]}]},{"id":"2","name":"Red Light","cat":"tower","order":"20","items":[{"id":"2","section_id":"2","sub_section":"","faa_style":"FAA Style A","pdf_page":"66","pdf_print_page":"A-7","url_slug":"red-light-standards","sort":"20","content_img":"bg42.png","content_prev_img":"bg38.png","content_caption":"Figure A-6. Red Obstruction Light Standards","template":"image-only.html","changes":[{"id":"2","item_id":"2","text":"Paint band requirements (from 7 to 21) were clearly defined","sort":"10"},{"id":"3","item_id":"2","text":"L-864 Red obstruction light to flash at 30 FPM (+\/- 3 FPM).  Previous requirement was 20-40 FPM.","sort":"20"},{"id":"5","item_id":"2","text":"Side lights not required on A2, A3, A4, A5 and A6 tower structures","sort":"40"},{"id":"6","item_id":"2","text":"Removed on A2 structure that middle L-864 lights should be no lower than 200'","sort":"50"},{"id":"7","item_id":"2","text":"Less than 7\/8\" lightning rod or any other appurtenance allowed to be placed in front of beacon at top of structure.","sort":"60"}]}]},{"id":"3","name":"Medium Intensity","cat":"tower","order":"30","items":[{"id":"3","section_id":"3","sub_section":"White","faa_style":"FAA Style D","pdf_page":"67","pdf_print_page":"A-8","url_slug":"medium-intensity-white-standards","sort":"30","content_img":"bg43.png","content_prev_img":"bg39.png","content_caption":"Figure A-7. Medium-Intensity White Obstruction Light Standards","template":"image-only.html","changes":[{"id":"8","item_id":"3","text":"D1 height changed from 200 ft to above 200 ft","sort":"10"},{"id":"9","item_id":"3","text":"D2 height changed from 350 ft to 700 ft. Previous maximum height was 500 ft.","sort":"20"},{"id":"10","item_id":"3","text":"Less than 7\/8\" lightning rod or any other appurtenance allowed to be placed in front of beacon at top of structure.","sort":"30"}]},{"id":"4","section_id":"3","sub_section":"Dual","faa_style":"FAA Style E","pdf_page":"70","pdf_print_page":"A-11","url_slug":"medium-intensity-dual-standards","sort":"40","content_img":"bg46.png","content_prev_img":"bg3c.png","content_caption":"Figure A-10. Medium-Intensity Dual Obstruction Lighting Standards","template":"image-only.html","changes":[{"id":"11","item_id":"4","text":"Height of appurtenances must now be considered","sort":"10"},{"id":"12","item_id":"4","text":"E1 height changed from 200 ft to above 200 ft.","sort":"20"},{"id":"13","item_id":"4","text":"E2 height changed from 351 ft to 500 ft to above 350 ft to 700 ft","sort":"30"},{"id":"14","item_id":"4","text":"E2 L-810 side lights removed","sort":"40"},{"id":"15","item_id":"4","text":"L-864 to flash at 30 fpm (+\/- 3 fpm)","sort":"50"}]},{"id":"5","section_id":"3","sub_section":"Top Beacon Locations","faa_style":"","pdf_page":"74","pdf_print_page":"A-15","url_slug":"medium-intensity-beacon-locations","sort":"50","content_img":"bg4a.png","content_prev_img":"bg2d.png","content_caption":"Figure A-14. Medium-Intensity Lighting\u2014Establishing the Location of Top Beacons","template":"image-only.html","changes":[{"id":"17","item_id":"5","text":"Less than 7\/8\" lightning rod or any other appurtenance allowed to be placed in front of beacon at top of structure.","sort":"10"},{"id":"18","item_id":"5","text":"Mounting obstruction lights within 10' of the overall height of a 200' to 500' tower has been changed to structures above 350' and less than 700'","sort":"20"}]}]},{"id":"4","name":"High Intensity White","cat":"tower","order":"40","items":[{"id":"6","section_id":"4","sub_section":"Appurtenance 40' Or Less","faa_style":"FAA Style B","pdf_page":"68","pdf_print_page":"A-9","url_slug":"high-intensity-white-standards(short-appurtenance)","sort":"60","content_img":"bg44.png","content_prev_img":"bg3a.png","content_caption":"Figure A-8. High-Intensity White Obstruction Light Standards\u2014Structures With Appurtenance 40 Feet OR LESS ","template":"image-only.html","changes":[{"id":"20","item_id":"6","text":"B2 configuration (501' to 700') has been removed","sort":"20"},{"id":"21","item_id":"6","text":"40 ft. or less appurtenance on the top level of lamping is displayed","sort":"30"}]},{"id":"7","section_id":"4","sub_section":"Appurtenance over 40'","faa_style":"FAA Style C","pdf_page":"69","pdf_print_page":"A-10","url_slug":"high-intensity-white-standards(tall-appurtenance)","sort":"70","content_img":"bg45.png","content_prev_img":"bg3b.png","content_caption":"Figure A-9. High-Intensity Obstruction Lighting Standards\u2014Structures With Appurtenance Over 40 Feet High","template":"image-only.html","changes":[{"id":"23","item_id":"7","text":"C2 configuration (501' to 700') has been removed","sort":"10"},{"id":"24","item_id":"7","text":"Appurtenances over 40 ft. are identified","sort":"20"},{"id":"48","item_id":"7","text":"Less than 7\/8\" lightning rod or any other appurtenance allowed to be placed in front of beacon at top of structure.","sort":"30"}]}]},{"id":"5","name":"High Intensity Dual","cat":"tower","order":"50","items":[{"id":"8","section_id":"5","sub_section":"Appurtenance 40' Or Less","faa_style":"FAA Style G","pdf_page":"72","pdf_print_page":"A-13","url_slug":"high-intensity-dual-standards(short-appurtenance)","sort":"80","content_img":"bg48.png","content_prev_img":"bg3d.png","content_caption":"Figure A-12. High-Intensity Dual Obstruction Lighting Standards\u2014Structures With Appurtenance 40 Feet OR LESS ","template":"image-only.html","changes":[{"id":"27","item_id":"8","text":"Style G  is new to identify 40 ft. or less appurtenance on the top level of lamping","sort":"10"}]},{"id":"9","section_id":"5","sub_section":"Appurtenance over 40'","faa_style":"FAA Style F","pdf_page":"71","pdf_print_page":"A-12","url_slug":"high-intensity-dual-standards(tall-appurtenance)","sort":"90","content_img":"bg47.png","content_prev_img":"bg3d.png","content_caption":"Figure A-11. High-Intensity Dual Obstruction Lighting Standards\u2014Structures With Appurtenance Over 40 Feet High","template":"image-only.html","changes":[{"id":"28","item_id":"9","text":"F2 configuration (501' to 700') has been removed","sort":"10"},{"id":"29","item_id":"9","text":"Requirement for L-810 side lights have been removed","sort":"20"},{"id":"49","item_id":"9","text":"L-864 to flash at 30 fpm (+\/- 3 fpm)","sort":"30"},{"id":"30","item_id":"9","text":"L-864\/L-865 at top of appurtenance identified","sort":"40"}]}]},{"id":"6","name":"Aircraft Detection System","cat":"both","order":"60","items":[{"id":"10","section_id":"6","sub_section":"","faa_style":"","pdf_page":"87","pdf_print_page":"A-28","url_slug":"aircraft-detection-lighting-system","sort":"100","content_img":"bg57.png","content_prev_img":"","content_caption":"Figure A-27. Sample of Aircraft Detection Lighting System Coverage Map","template":"aircraft-detection.html","changes":[{"id":"32","item_id":"10","text":"Aircraft Detection Lighting System, new \u2013 did not exist.\nAircraft Detection Lighting Systems (ADLS) are sensor-based systems designed to detect aircraft as they approach an obstruction or group of obstructions; these systems automatically activate the appropriate obstruction lights until they are no longer needed by the aircraft. This technology reduces the impact of nighttime lighting on nearby communities and migratory birds and extends the life expectancy of obstruction lights.","sort":"10"}]}]},{"id":"7","name":"Wind Turbine","cat":"other","order":"70","items":[{"id":"11","section_id":"7","sub_section":"Standard","faa_style":"","pdf_page":"83","pdf_print_page":"A-24","url_slug":"wind-turbine-lighting","sort":"110","content_img":"bg53.png","content_prev_img":"","content_caption":"Figure A-23. Wind Turbine Lighting","template":"image-only.html","changes":[]},{"id":"12","section_id":"7","sub_section":"Snow Prone","faa_style":"","pdf_page":"84","pdf_print_page":"A-25","url_slug":"wind-turbine-lighting(snow_prone)","sort":"120","content_img":"bg54.png","content_prev_img":"","content_caption":"Figure A-24. Wind Turbine Lighting And Marking IN Snow Prone Areas (Optional)","template":"image-only.html","changes":[]},{"id":"13","section_id":"7","sub_section":"Proper Paint Scheme","faa_style":"","pdf_page":"85","pdf_print_page":"A-26","url_slug":"wind-turbine-paint-scheme","sort":"130","content_img":"bg55.png","content_prev_img":"bg37.png","content_caption":"Figure A-25. Lighting And Marking of Wind Turbines \u2013 Paint Schemes","template":"image-only.html","changes":[]}]},{"id":"8","name":"Catenaries","cat":"other","order":"80","items":[{"id":"14","section_id":"8","sub_section":"Obstruction Lighting","faa_style":"","pdf_page":"64","pdf_print_page":"A-5","url_slug":"catenary-obstruction-lighting","sort":"140","content_img":"bg40.png","content_prev_img":"","content_caption":"Figure A-4. Catenary Obstruction Lighting","template":"image-only.html","changes":[]},{"id":"15","section_id":"8","sub_section":"Lighted Markers","faa_style":"","pdf_page":"65","pdf_print_page":"A-6","url_slug":"catenary-lighted-markers","sort":"150","content_img":"bg41.png","content_prev_img":"","content_caption":"Figure A-5. Catenary Lighted Markers","template":"image-only.html","changes":[]}]},{"id":"9","name":"Bridge","cat":"other","order":"90","items":[{"id":"16","section_id":"9","sub_section":"","faa_style":"","pdf_page":"82","pdf_print_page":"A-23","url_slug":"bridge-lighting","sort":"160","content_img":"bg52.png","content_prev_img":"","content_caption":"Figure A-22. Bridge Lighting","template":"image-only.html","changes":[]}]},{"id":"10","name":"Water and Storage Tanks","cat":"other","order":"100","items":[{"id":"17","section_id":"10","sub_section":"","faa_style":"","pdf_page":"75","pdf_print_page":"A-16","url_slug":"water-storage-tanks","sort":"170","content_img":"bg4b.png","content_prev_img":"","content_caption":"Figure A-15. Painting And Lighting of Water Towers, Storage Tanks, And Similar Structures","template":"water-tanks.html","changes":[]}]},{"id":"11","name":"Hyperbolic Cooling Tower","cat":"other","order":"110","items":[{"id":"18","section_id":"11","sub_section":"","faa_style":"","pdf_page":"81","pdf_print_page":"A-22","url_slug":"hyperbolic-cooling-towers","sort":"180","content_img":"bg51.png","content_prev_img":"","content_caption":"Figure A-21. Hyperbolic Cooling Tower","template":"image-only.html","changes":[]}]},{"id":"12","name":"Chimneys,Flare Stacks or Similar","cat":"other","order":"120","items":[{"id":"19","section_id":"12","sub_section":"","faa_style":"","pdf_page":"80","pdf_print_page":"A-21","url_slug":"chimneys-flare-stacks-and-similar","sort":"190","content_img":"bg50.png","content_prev_img":"","content_caption":"Figure A-20. Lighting of Chimneys, Flare Stacks, OR Similar Solid Structures","template":"image-only.html","changes":[]}]},{"id":"13","name":"Adjacent Structures","cat":"both","order":"130","items":[{"id":"20","section_id":"13","sub_section":"Requirements","faa_style":"","pdf_page":"79","pdf_print_page":"A-20","url_slug":"lighting-adjacent-structures","sort":"200","content_img":"bg4f.png","content_prev_img":"","content_caption":"Figure A-19. Lighting Adjacent Structures","template":"image-only.html","changes":[]},{"id":"21","section_id":"13","sub_section":"Light Level Adjustments","faa_style":"","pdf_page":"78","pdf_print_page":"A-19","url_slug":"lighting-adjacent-structures-level-adjust","sort":"210","content_img":"bg4e.png","content_prev_img":"","content_caption":"Figure A-18. 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