AFMS, Garmin GNS 4XXW GPS/SBAS System 190-00356-03 Rev. DFAA APPROVED Page 9 of 192.5 Flight PlanningFor flight planning purposes, in areas where SBAS coverage is not available, theflight crew must check RAIM availability.• Within the United States, RAIM availability can be determined using theGarmin WFDE Prediction program, Garmin part number 006-A0154-04software version 3.00 or later approved version with Garmin approvedantennas or the FAA’s enroute and terminal RAIM prediction website:www.raimprediction.net, or by contacting a Flight Service Station.• Within Europe, RAIM availability can be determined using the GarminWFDE Prediction program or Europe’s AUGER GPS RAIM PredictionTool at http://augur.ecacnav.com/augur/app/home.• For other areas, use the Garmin WFDE Prediction program.This RAIM availability requirement is not necessary if SBAS coverage isconfirmed to be available along the entire route of flight. The route planning andWFDE prediction program may be downloaded from the Garmin website on theinternet. For information on using the WFDE Prediction Program, refer toGarmin WAAS FDE Prediction Program, part number 190-00643-01, ‘WFDEPrediction Program Instructions’.For flight planning purposes, for operations within the U.S. National AirspaceSystem on RNP and RNAV procedures when SBAS signals are not available,the availability of GPS RAIM shall be confirmed for the intended route of flight.In the event of a predicted continuous loss of RAIM of more than five minutesfor any part of the intended route of flight, the flight shall be delayed, canceled,or rerouted on a track where RAIM requirements can be met. The flight may alsobe re-planned using non-GPS based navigational capabilities.For flight planning purposes for operations within European B-RNAV/RNAV-5and P-RNAV airspace, if more than one satellite is scheduled to be out ofservice, then the availability of GPS RAIM shall be confirmed for the intendedflight (route and time). In the event of a predicted continuous loss of RAIM ofmore than five minutes for any part of the intended flight, the flight shall bedelayed, canceled, or rerouted on a track where RAIM requirements can be met.Applicable to dual installations consisting of two Garmin GNSS units:For flight planning purposes, for operations where the route requiresClass II navigation the aircraft’s operator or flight crew must use theGarmin WFDE Prediction program to demonstrate that there are nooutages on the specified route that would prevent the Garmin GNSSnavigation system to provide GPS Class II navigation in oceanic andremote areas of operation that requires RNP-10 or RNP-4 capability. Ifthe Garmin WFDE Prediction program indicates fault exclusion (FDE)will be unavailable for more than 34 minutes in accordance with FAAOrder 8400.12A for RNP-10 requirements, or 25 minutes in accordance