Garmin G1000 Pilot's Manual page 364

APPENDIX C
When storing flight plans with an approach, a departure,
or an arrival, the G1000 uses the waypoint information
from the current database to define the waypoints. If
the database is changed or updated, the G1000 system
automatically updates the information, provided the
procedure has not been modified. Should an approach,
departure, or arrival procedure no longer be available, the
flight plan becomes locked until the procedure is deleted
from the flight plan.
Can "slant Golf" ("/G") be filed using the
G1000?
"/G" may be filed for a flight plan. The G1000 system
meets the requirements of TSO-C129 Class A1 or A2
installation. Non-precision GPS approaches are not to
be flown with an expired database. See the approved
Aircraft Flight Manual Supplement (AFMS) as well as
the Aeronautical Information Manual (AIM) for more
information.
What does the OBS softkey do?
The OBS softkey is used to select manual sequencing
of waypoints. Activating OBS mode sets the current
active-to waypoint as the primary navigation reference
and prevents the system from sequencing to the next
waypoint in a flight plan. When OBS mode is cancelled,
automatic waypoint sequencing is continued, and the
G1000 automatically activates the next waypoint in the
flight plan once the aircraft has crossed the present active
waypoint.
Normal (OBS not activated)
• Automatic sequencing of waypoints
• Manual course change on HSI is not possible
• Always navigates 'TO' the active waypoint
• Must be in this mode for final approach course
OBS
• Manual sequencing - 'holds' on selected waypoint
• Manually select course to waypoint from HSI
C-2 Garmin G1000 Pilot's Guide for Beechcraft 58/G58 190-00629-00 Rev. B