This website will be discontinued on January 30, 2015

(Note that this also affects all variations of, including:, and

All services currently hosted at have been migrated to the SAPT (Service Availability Prediction Tool) web site located at:

The SAPT web site hosts both the ADS-B SAPT and the migrated RAIM SAPT. (ADS-B SAPT is a service that is similar in concept to the RAIM prediction service but does not focus on either RAIM or the FAA Order AC90-100A.)

New users may find the Getting Started page for RAIM to be useful.

Getting Started with RAIM SAPT

The new web site hosts the automated, XML-based web service for RAIM route-of-flight predictions with an updated web service interface (WSDL). More information about the XML web service is available at:

RAIM XML Service

Note that the RAIM interactive flight planning form has been discontinued. However, the new web site provides the same RAIM graphical summaries that you are used to.

For more information or help with specific issues you may contact the SAPT team using the convenient online feedback form:

SAPT Feedback

To subscribe to the SAPT announcement mailing list, please visit the mailing list subscription page:

SAPT Announcement Mailing List Subscription Page


Some web site features are presently functioning incorrectly. The issue is being actively investigated and a solution will be implemented as soon as possible. The following features are impacted and should be considered unreliable for navigation until a solution is implemented:

Until the issues have been addressed, you are advised to use the raim prediction XML web service to check your flight plan for coverage. Some features, such as outages.dat and the outage summary graphics, are available at the SAPT website at

Current Status: There is at least one Enroute or Terminal TSO-C129 outage

Select an option below:

Grid Display Tool

ICAO Flight Plan Tool

Grid Display Tool ICAO Flight Plan Tool


Select one of the images above to begin using that tool

Java Test


Phase-of-flight With Baro-Aiding Without Baro-Aiding
En Route view view
Terminal view view
NPA** view view
Click on an image to view

** For AC90-100A Compliance, Non-Precision Approaches do not require a RAIM Prediction.

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