Garmin GTN 625 Installation Manual page 46

Applicable to dual installations consisting of two Garmin GNSS units: The Garmin GNSS navigation
system has been found to comply with the requirements for GPS Class II oceanic and remote navigation
(RNP-10) without time limitations in accordance with [AC 20-138C] and FAA Order 8400.12B. The
Garmin GNSS navigation system can be used without reliance on other long-range navigation systems.
This does not constitute an operational approval.
Applicable to dual installations consisting of two Garmin GNSS units: The Garmin GNSS navigation
system has been found to comply with the navigation requirements for GPS Class II oceanic and remote
navigation (RNP-4) in accordance with [AC 20-138C], and FAA Order 8400.33. The Garmin GNSS
navigation system can be used without reliance on other long-range navigation systems. Additional
equipment may be required to obtain operational approval to utilize RNP-4 performance. This does not
constitute an operational approval.
The Garmin GNSS navigation system complies with the accuracy, integrity, and continuity of function,
and contains the minimum system functions required for P-RNAV operations in accordance with JAA
Administrative & Guidance Material Section One: General Part 3: Temporary Guidance Leaflets, Leaflet
No 10 (JAA TGL-10 Rev 1). The GNSS navigation system has [one or more] [TSO-C146c Class 3]
approved [Garmin GTN 625/635/650] Navigation Systems. The Garmin GNSS navigation system
complies with the accuracy, integrity, and continuity of function, and contains the minimum system
functions required for B-RNAV operations in accordance with EASA AMC 20-4. The Garmin GNSS
navigation system complies with the equipment requirements for 
P-RNAV and B-RNAV/RNAV 5 operations in accordance with AC 90-96A CHG 1 . This does not
constitute an operational approval.
Garmin International holds an FAA Type 2 Letter of Acceptance (LOA) in accordance with AC 20-153 for
database integrity, quality, and database management practices for the navigation database. Flight crew
and operators can view the LOA status at flyGarmin.com then select "Type 2 LOA Status."
Navigation information is referenced to the WGS-84 reference system.
For FAA approved installations in non-U.S. registered aircraft:
For installations outside the United States of America or in non-U.S. registered aircraft, installations
should comply with applicable regulations and guidance of the cognizant Civil Aviation Authority.
Note that for some types of aircraft operation and for operation in non-U.S. airspace, separate operational
approval(s) may be required in addition to equipment installation and airworthiness approval.
GARMIN GNSS (GPS/SBAS) NAVIGATION SYSTEM LIMITATIONS
The flight crew 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 flight crew 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, oceanic, and terminal navigation is prohibited unless the flight crew
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 aircraft and verified that the discrepancy has been corrected. Navigation
database discrepancies can be reported at flyGarmin.com then select "Aviation Data Error Report." Flight
crew and operators can view navigation database alerts at flyGarmin.com then select "NavData Alerts."
GTN 625/635/650 TSO Installation Manual 190-01004-02
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