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these installations, the MFD and the HSI will display GPS 1
information and the CDI (VOR/LOC/ILS/GS Indicator) will display GPS
2 information.
• Note •
Refer to GPS 430 INTEGRATION in the NORMAL Procedures
Section of this supplement for a more detailed description of
GPS 430 integration in the various configurations.
SR20_FM09_1109
Garmin GNS 430 Front Panel
Revision 02: 08-15-07
P/N 11934-S22 3 of 10
Cirrus Design Section 9
SR20 Supplements
Section 2 – Limitations
Provided the GPS Navigator is receiving adequate usable signals, it
has been demonstrated capable of and has been shown to meet the
accuracy specifications of:
1. VFR/IFR, enroute, terminal, and instrument approach (GPS, VOR)
operations, that is, enroute, terminal, and instrument approach
within the U.S. National Airspace System, North Atlantic Minimum
Navigation Performance Specification (MNPS) Airspace using the
WGS-84 (or NAD 83) coordinate reference datum in accordance
with the criteria of AC 20-138, AC 91-49, and AC 120-33.
Navigation data is based upon use of only the global positioning
system (GPS) operated by the United States.
2. The Garmin GNS 430 Pilot's Guide and Reference, P/N 190-
00140-00, Revision F dated July 2000 (or later appropriate
revision) must be immediately available to the flight crew
whenever navigation is predicated on the use of the GPS
Navigator. The software status stated in the pilot's guide must
match that displayed on the equipment.
3. The Navigator must utilize software version 2.XX (where X is a
digit, 0-9) or later.
4. IFR enroute and terminal navigation is prohibited unless the pilot
verifies the currency of the database or verifies each selected
waypoint for accuracy by reference to current approved data.
5. GPS instrument approaches must be accomplished in accordance
with approved instrument approach procedures that are retrieved
from the Navigator’s NavData database. The database must
incorporate the current update cycle.
a. Instrument approaches must be conducted in the approach
mode and RAIM must be available at the Final Approach Fix.
b. Accomplishment of ILS, LOC, LOC-BC, LDA, SDF, and MLS
approaches are not authorized in GPS mode.
c. When an alternate airport is required by the applicable
operating rules, it must be served by an approach based on
other than GPS navigation, the aircraft must have operational
equipment capable of using that navigation aid, and the
required navigation aid must be operational.
Revision 02: 08-15-07
4 of 10 P/N 11934-S22
Section 9 Cirrus Design
Supplements SR20
6. The aircraft must have other approved navigation equipment
installed and operating appropriate to the route of flight.
7. The Garmin GNS 430 meets RNP5 (BRNAV) requirements of
AC 90-96 and is in accordance with AC 20-138, and JAA AMJ
20X2 Leaflet 2 Revision 01, provided it is receiving usable
navigation information from the GPS receiver.
8. Do not use the Terrain Display for navigation of the aircraft. The
Terrain Display does not provide TAWS capability and is intended
to serve as a situational awareness tool only and does not provide
the accuracy fidelity on which to solely base terrain or obstacle
avoidance maneuvering decisions.
Section 3 - Emergency Procedures
1. If GPS Navigator information is not available or is invalid, utilize
remaining operational navigation equipment as required.
2. If “RAIM NOT AVAILABLE…” or “RAIM POSITION WARNING”
message is displayed, continue to navigate using the GPS
equipment or revert to an alternate means of navigation
appropriate to the route and phase of flight. When continuing to
use GPS navigation, position must be verified every 15 minutes
using another IFR approved navigation system.
Section 4 - Normal Procedures
The GARMIN GNS 430 Navigator is available in single or dual
installations. Operating procedures for each unit of a dual installation
are identical. Refer to the GNS 430 Integration paragraphs in this
supplement for integration differences when single and dual units are
installed. Normal operating procedures are outlined in the GARMIN
GNS 430 Pilot's Guide and Reference, P/N 190-00140-00, Revision F
dated July 2000 (or later appropriate revision).
Activate GPS
1. Battery Master Switch ............................................................... ON
2. Avionics Power Switch .............................................................. ON
3. Navigator Com/ Power Switch...................................... Rotate ‘ON’
Revision 02: 08-15-07
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西锐20飞机信息手册 SR22 AIRPLANE INFORMATION MANUAL 1148-126(109)
