What is drone inspection in AGL?
A small uncrewed aircraft carries a camera or sensors over the lights — capturing views from above for an engineer to review and confirm.
Drone inspection uses a small uncrewed aircraft carrying a camera or other sensors to look at lights, approach-light structures and PAPI units from the air. It flies a planned path, tags each image or reading with its position and time, and the data is reviewed afterwards for possible defects.
It suits height, reach and speed: elevated approach lights, long rows of lights and areas that are hard to reach. But the drone only flies and sees. The aerodrome and air traffic control authorise the flight, a remote pilot stays in charge, wind, rain and airspace limit it, and an engineer confirms each finding and does the repair. It is flown within the approved inspection programme, not in place of it.
- Plan. Get permission and clearance, set the flight path and height, and check the weather.
- Fly. The drone follows the path with a remote pilot in charge and returns on an alert.
- Capture. Images and sensor data are recorded with position and time.
- Land. The drone lands in the agreed area and the data is downloaded.
- Review. Results are checked and an engineer confirms the defect list.
- Repeat. A later flight along the same path confirms repairs and shows change.
Flies above the lights, so it suits height, reach and wide views of the airfield.
A ground robot travels on the surface close to the lights, so it suits low fixtures and repeated close passes.
Frequently Asked Questions
Q1What is drone inspection in airfield ground lighting?
Inspection carried out with a small uncrewed aircraft that flies a planned path and carries a camera or other sensors. It looks at lights, approach-light structures and PAPI units from the air, and records each image or reading with its position and time.
Q2What can a drone check that is hard to check on foot?
Elevated approach lights and their structures, long rows of lights that are slow to walk, areas that are hard to reach, and the overall pattern of lights seen from above. Some systems also measure PAPI angles or light output from the air, depending on the sensors and software.
Q3Who allows a drone to fly near an airfield?
The aerodrome operator, air traffic control and the national aviation authority. Drones near an aerodrome need permission, a remote pilot and an approved flight plan. They are not flown on the movement area or in the approach path without that clearance, and they stay clear of ILS and other navaid critical and sensitive areas unless the navaid owner agrees.
Q4What are the limits of drone inspection?
Wind, rain, low cloud, battery time and nearby aircraft movements limit when a drone can fly. Images from above may not show every defect, and a drone cannot touch, clean or repair anything. Its findings are confirmed by an engineer.
Q5How is a drone different from an inspection robot?
A drone flies and sees from above, so it suits height, reach and wide views. A ground robot travels on the surface close to the lights, so it suits low fixtures and repeated close passes. Both can carry cameras and sensors for automated inspection.
Q6Does a drone replace the required inspections?
Only if the aerodrome’s approved procedures and the regulator accept it. ICAO Annex 14 and national rules set what is inspected and how often, so drone flights are used as part of that programme and do not replace it.
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