ICAO Annex 14 Obstacle Light Requirements

Per International Civil Aviation Organization (ICAO) obstacle light requirements, all structures exceeding 45 meters above ground level (AGL) must be appropriately marked with aviation warning lights or paint. The information below provides guidance on ICAO lighting recommendations per ICAO Annex 14 6th Edition.

 

To help clients adhere to ICAO obstacle light requirements, Flash Technology offers a suite of compliant aerodrome lighting products. If you would like help determining what aviation obstruction lights are best suited your site, please contact us.

Tower Lighting

ICAO lighting requirements vary depending on the above ground level of the structure including any appurtenances. The graphics below reflect tower paint and obstruction lighting requirements and are based on International Civil Aviation Organization (ICAO) Annex 14 7th edition guidelines.

 

Click the thumbnail image for a full-sized PDF.

 

Dual Lighting

ICAO dual lighting medium intensity types a and b

Type A Medium Intensity Flashing White + Type B Medium Intensity Flashing Red

 

ICAO medium intensity types A and C dual tower lighting

Type A Medium Intensity Flashing White + Type C Medium Intensity Steady Red

IAO dual lighting high intensity type a and medium intensity type b

Type A High Intensity Flashing White + Type B Medium Intensity Flashing Red

 

ICAO high intensity type A and medium intensity type C dual tower lighting

Type A High Intensity Flashing White + Type C Medium Intensity Steady Red

 

 

Red Lighting

IAO red lighting medium intensity type b

Type B Medium Intensity Flashing Red

IAO red lighting medium intensity type c

Type C Medium Intensity Steady Red

 

 

White Lighting

 

ICAO white flashing medium intensity lighting

Type A Medium Intensity Flashing White

IAO dual lighting high intensity type a

Type A High Intensity Flashing White

Wind Turbines & Other Structures

International lighting requirements state that wind turbines, catenaries, bridges and other structures must also be marked if they present an aviation hazard.

 

Click the thumbnail image for a full-sized PDF.

 

ICAO catenary lighting for transmission towers

Catenary Lighting

 

ICAO water tank lighting and paint

Water Towers

 

ICAO wind turbine lighting

Wind Turbine Lighting

 

ICAO wind turbine paint schemes

Wind Turbine Paint

 

IAO wind farm lighting configurations

Wind Farm Lighting Configurations

Lighting Equipment Classification

Low Intensity Type A
Steady-Burning – RED
10 cd at night

 

Low Intensity Type B
Steady-Burning – RED
32 cd at night

 

Low Intensity Type C
Flashing (60-90 fpm) – YELLOW / BLUE
40 cd at twilight and night

 

Low Intensity Type D
Flashing (60-90 fpm) – YELLOW
200 cd at twilight and night

 

Low Intensity Type E
Flashing – RED
32 cd at night

 

Medium Intensity Type A
Flashing (20-60 fpm) – WHITE
20,000 cd at day and twilight; 2,000 cd at night

 

Medium Intensity Type B
Flashing (20-60 fpm) – RED
2,000 cd at night

 

Medium Intensity Type C
Steady-Burning – RED
2,000 cd at night

 

Medium Intensity Dual Types A and B
Flashing (20-60 fpm) – WHITE DAY; Flashing (20-60 fpm) – RED NIGHT
20,000 cd at day and twilight; 2,000 cd at night

 

Medium Intensity Dual Types A and C
Flashing (20-60 fpm) – WHITE DAY; Steady-Burning – RED NIGHT
20,000 cd at day and twilight; 2,000 cd at night

 

High Intensity Type A
Flashing (40-60 fpm) – WHITE
200,000 cd at day; 20,000 cd at twilight; 2,000 cd at night

 

High Intensity Type B
Flashing (40-60 fpm) – WHITE
100,000 cd at day; 20,000 cd at twilight; 2,000 cd at night

 

(cd=candela; fpm = flashes per minute)

Monitoring

ICAO does not provide official recommendations for the monitoring of obstacle lighting.

 

Automatic monitoring of airfield lighting, including runway approach lights, is required. Please see ICAO Annex 14 Chapter 8 as well as Document 9157 – Aerodrome Design Manual Part 5 Electrical Systems (2nd edition) for specific details on airfield light monitoring.