GNS 430(A) Pilot’s Guide and Reference
190-00140-00 Rev. P
APPENDIX C
TROUBLESHOOTING
C-2
What happens when I select an approach?
Can I store a flight plan with an approach,
departure, or arrival?
When loading an approach, departure, or arrival into
the active ight plan, a set of approach, departure, or
arrival waypoints is inserted into the ight plan—along
with a header line describing the selected instrument
procedure (Figure C-2). The original enroute portion of
the ight plan remains active, unless the pilot activates
the instrument procedure; which may be done when the
procedure is loaded or at a later time.
Figure C-2 Active Flight Plan Page
Flight plans can also be stored with an approach,
departure, or arrival. Keep in mind that the active ight
plan is erased when the unit is turned off and overwritten
when another ight plan is activated. When storing ight
plans with an approach, departure, or arrival, the GNS
430 uses the waypoint information from the current
database to define the waypoints. If the database is
changed or updated, the GNS 430 automatically updates
the information if the procedure has not been modified.
If an approach, departure, or arrival procedure is no
longer available, the ight plan becomes locked until the
procedure is deleted from the ight plan or the correct
database is installed. For information on loading an
approach, departure, or arrival, see Section 6.1. See
Section 5.1 for instructions on saving and copying ight
plans.
Can I file slant Golf (‘/G’) using my GPS?
Yes, the pilot may le a ight plan as /G if the GNS
430 is a certied A1 or A2 installation. If ying enroute,
the pilot may le /G with an expired database only after
having verified all route waypoints. Non-precision
approaches may not be own with an expired database.
See an approved Airplane Flight Manual Supplement for
more information.
What does the OBS key do and when do I use
it?
The OBS Key is used to select manual (OBS mode)
or automatic sequencing of waypoints. Activating OBS
mode (as indicated by an OBS annunciation directly
above the OBS Key) holds the current active to waypoint
as the navigation reference and prevents the GPS from
sequencing to the next waypoint. When OBS mode is
cancelled, automatic waypoint sequencing is selected, and
the GNS 430 automatically selects the next waypoint in
the ight plan once the aircraft has crossed the present
active-to waypoint.
