13.2. GTN650Xi GNSS (GPS/SBAS) Navigation System Limitations
The pilot must confirm at system initialization that the Navigation database is
current. Navigation database is expected to be current for the duration of the
flight.
If the AIRAC cycle will change during flight, the pilot must ensure the accuracy of
navigation data, including suitability of navigation facilities used to define the routes
and procedures for flight. If an amended chart affecting navigation data is published
for the procedure, the database must not be used to conduct the procedure.
GPS/SBAS based IFR en-route and terminal navigation is prohibited unless the
pilot verifies and uses a valid, compatible, and current Navigation database or
verifies each waypoint for accuracy by reference to current approved data.
Discrepancies that invalidate a procedure must be reported to Garmin International.
The affected procedure is prohibited from being flown using data from the Navigation
database until a new Navigation database is installed in the airplane and verified that
the discrepancy has been corrected.
Contact information to report Navigation database discrepancies can be found at
www.Garmin.com > Support > Contact" class = "redactor-linkify-object">
www.Garmin.com > Support > Contact Garmin Support > Aviation. Pilots and operators
can view navigation data base alerts at www.Garmin.com In the Air NavData Alerts.
For flight planning purposes, in areas where SBAS coverage is not available, the
pilot must check RAIM availability.
Within Europe, RAIM availability can be determined using the GTN 650 WFDE
Prediction program or Europe's AUGER GPS RAIM Prediction Tool at
http://augur.ecacnav.com.
This requirement is not necessary if SBAS coverage is confirmed to be available along
the entire route of flight.
The route planning and WFDE prediction program may be downloaded from the
GARMIN GTN 650 website on the internet. For information on using the WFDE
Prediction Program, refer to GARMIN WAAS FDE Prediction Program, `WFDE
Prediction Program instructions'.
For flight planning purposes for operations within European B-RNAV and P-
RNAV airspace, if more than one satellite is scheduled to be out of service, then
the availability of GPS integrity RAIM shall be confirmed for the intended flight
(route and time).
In the event of a predicted continuous loss of RAIM of more than five minutes for any
part of the intended flight, the flight should be delayed, cancelled, or re- routed on a
track where RAIM requirements can be met.
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