Federal Aviation Administration logo

Frequently Asked Questions

How do I get a copy of the WSDL?
Please visit the link in the main menu above and select ADS-B or RAIM then select "XML Service". From those pages you can request a copy of the WSDL. You can also request a copy of the WSDL and SDK here.
How do I get a copy of the User Guide?
Please visit the link in the main menu above and select ADS-B or RAIM then select "Getting Started" where you will find User Guide link in the page. You can also get a copy of the User Guide by clicking here.
Has the Interactive Map issue been resolved?
The interactive map stopped working when the Google discontinued the Google Earth Plugin. It has now been rebuilt using Cesium, which is an open-source JavaScript library for 3D globes and maps. Cesium is based on WebGL (Web Graphics Library), which is a JavaScript API for rendering interactive 3D and 2D graphics within any compatible web browser without the use of plug-ins. JavaScript will need to be enabled and a compatible web browser, such as Chrome, Firefox, Safari, Internet Explorer Edge or Internet Explorer 11 must be used. Some browsers render the map quicker than others, so you may want to try a few browsers to find one that suits your needs. You may also want to check that you have the latest graphics drivers for your device. Basic controls include play forward, play reverse, pause, speed control, zoom in, zoom out and a manual time slider.
Image of Cesium map
Why are there outages only along my route?
The map of a flight only displays outages along the route of flight. There are white boxes that appear along the route to show the area that was checked for outages; you can’t assume the region outside the boxes is outage-free. To see a different or wider region, you can either check the Outage Summaries in the ADS-B section of the homepage, or you can change the route on the Flight Plan Form and click through to see the new route in the interactive map.
I get an error that says my browser does not support WebGL, but it passes on a WebGL test site.
Even if you have a newer version, you may have to change settings in your browser to enable the newer WebGL functionality that Cesium needs. For example, in Chrome, some people need to change these flags to Enable from Disable and Default, respectively, by going to chrome://flags/ :

WebGL Draft Extensions Mac, Windows, Linux, Chrome OS, Android
Enabling this option allows web applications to access the WebGL Extensions that are still in draft status. #enable-webgl-draft-extensions

WebGL 2.0 Mac, Windows, Linux, Chrome OS, Android
Allow web applications to access WebGL 2.0. #enable-es3-apis