ALS Inspection

Our solution is the best method for checking ALS to verify the lights and alignment from all reference points. It is one of the few solutions that really complies with procedures.



Complete ALS inspections in a few minutes, minimising runway downtime and reducing indirect costs.


Repeatable and accurate measurements, allowing for better and quicker inspections.


Day&night operations allow easier scheduling. And with portability, it can serve remote locations.


It removes the need of hazardous flight inspection manoeuvres. No noise or pollution.


1. Register the Operation
2. Inspect the ALS
3. Generate the Reports

Preparing the operation takes less than 1 minute. The only action that has to be done is to select the airport and the runway from our database. Once this is done, all the required data is generated automatically: missions, waypoints, distances, altitudes, etc. There is no need to read the procedures to figure out which measurements that are to be made and where. Once the operation is created in our platform, one can simply access our Calibration Tool App in the tablet and download it with all the tasks to be performed. This database of airports, runways & NAVAIDs can be expanded and updated with an easy-to-use web interface.

Once the corresponding operation has been downloaded to the inspection app, the operator launches the mission & monitors the automated procedures. The operator is guided throughout the mission. Each mission takes only a few minutes of flight and can be repeated as many times as needed. Measurements are available in real-time, so adjustments can be made quickly by the technicians.

Reports are viewable on-site through the app. There is no need to download the measured data obtained to a computer or to go back to the office to process it. Reports contain all the relevant measurements and parameters as they would appear on any report from flight inspection aircraft, organised in tables and images. Reports, along with all the measurements, images or videos, are uploaded into our platform, being accessible for future reference or for additional processing.


Nominal Inspection
Angular Coverage
Lights Intensity
Dirt & Aging

Our solution checks that ALS lights are correctly visible from the nominal angles, including the glidepath. This is specially interesting in commissioning, to verify that the lights are correctly oriented and not obstructed by obstacles.

As part of the procedure, the system also checks the angular coverage of the ALS on both sides of the runway centerline, to verify that all lights are visible from that location. In fact, our solution is one of the few that is really able to check this.

As part of the procedure, all the different levels of intensity of the lights have to be checked. This allows identification of any lights that are not bright enough under certain conditions.

Dirt & aging check consists in the verification that the lights are visible in the worst condition possible (minimum intensity and lowest angle). This is specially important for older halogen ALS installations.


1Does this solution fully replace the need of flight inspection aircraft?

Yes, our app includes the procedure to check several parameters that allow verification that the ALS is correctly adjusted and all lights are visible from the reference points.

2How long does it take to do an ALS inspection?

With our solution, it takes under 10 minutes to perform all the checks for an ALS, including the verification from all locations at at the different levels of intensity.

3Does this solution follow ICAO or FAA guidelines?

Yes, we the procedures have been designed specifically with FAA and ICAO guidelines and recommendations. In fact, it is on of the few methods to actually check the required parameters and light orientation from different locations.

4Can the solution be purchased?

Yes, in fact, we have designed all the tools so that anyone can do the inspections for the airport after receiving our training. The solution can be acquired by airport operators, ANSPs, CAAs or any company or entity that can provide this service to airports. Ask as for a quote to acquire the solution.

5Can you operate it with wind and rain?

Yes, we have performe inspections with SNOW and -10ºC, with up to 15-knot WINDS and even with light RAIN. Although the real benefit is that with this solution, you have the flexibility of taking advantages of small windows where the wind goes down or it stops raining.

6How far & high does the drone fly?

The drone can fly several km away and hundreds of meters high if needed. However, according to our procedures, the drone flies approximately within 500m in front of the ALS, and below 120 meters AGL.

7How long do the batteries last?

Depending on weather conditions, the batteries can last 15-25 minutes. This is MORE than enough to do our ALS inspections, which just take 10 minutes. In any, case, it takes less than 1 minute to change batteries and fly again.

8How do you ship the drone to different airports?

All the equipment can be carried out as checked-in luggage with any commercial airline. We have reached the most remote locations taking up to 4 different flights with just 1 person without any issue. Batteries need to be carried as carry-on luggage.

9Are you allowed to fly drones at airports?

Yes, by obtaining the necessary authorisations in each country. CANARD has been authorised to fly drones in airports in several countries already, and we can help our customers that acquire our solution to obtain such authorisations. This is a very important matter, as safety is paramount in aviation and all procedures and coordination protocols must be stablished and follow to ensure safety.

10I already have a drone, can it be used with your software for ALS inspection?

Our solution is compatible with DJI M600 PRO and DJI M210 RTK drones. Contact us if you want a quote for a license to be able to use our software and training to perform ALS inspections with it.

11Can this solution perform all the types of inspections?

Yes, the system is able to do different types of visual inspections (PAPI, ALS, Lights), ILS measurements, photogrammetry and others. Al the capabilities are built into the same app. Contact us to get a quotation for a solution for multiple inspections.

12Does the drone fly autonomously?

Yes, the different tasks and flights are built into the app. The operator only needs to execute them and monitor the the drone flies according to plan. The drone goes to the required locations and takes the images needed to analyse the ALS. Once the tasks are executed, the report can be generated from the tablet.


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