G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Page 5-27
190-00716-01
Revision 1
5.5
Synthetic Vision and Pathways Troubleshooting
The SVS/Pathways software feature requires the following G1000 sensors/data to be valid:
•
AHRS
•
Heading
•
GPS Position
•
9 Arc-Second Terrain Data
In the event that one the above items fails or is unavailable, the SVS/Pathways feature is automatically
removed from the PFD. The following table describes possible symptoms associated with the
SVS/Pathways feature, and provides corresponding actions for troubleshooting:
Table 5-1, SVS Troubleshooting
Symptom Recommended
Action
“SYN VIS” softkey does not
appear on PFD softkey tier.
Follow the steps in Section 3.32 to reactivate the SVS/Pathways feature.
3D terrain presentation does not
appear on PFD.
Verify that P/N 010-00442-43 terrain datacards are installed in the lower slot
of the PFD and MFD.
Verify that the alert messages shown in Table 5-2 are not displayed on the
PFD Alerts Window. If so, follow the solutions described in Table 5-2.
Verify that the G1000 AHRS and heading data are valid on the PFD. Verify
that a valid GPS 3D position solution is being received. Troubleshoot these
systems in accordance with sections 5.10.4 and 5.15.
If a terrain database update has just been performed, allow the system time
to initialize and verify the data. When the databases have been verified, the
current database cycle and version are reported on the MFD AUX – System
Status page.
The following table provides SVS/Pathways specific alert messages which may appear in the Alerts
Window on the PFD (press the ALERTS softkey on the PFD to view the Alerts Window):
Table 5-2, SVS-Related Alert Messages
Failure Message
Cause
Solution
SVS – SVS DISABLED: Out of
available terrain region.
SVS is disabled because the
aircraft exceeded the boundaries
of the loaded terrain database.
Geographical operation limitations are
defined in the AFMS listed in Table 1-2.
Ensure that operations are within this
geographic area.
SVS – SVS DISABLED: Terrain
DB resolution too low
SVS is disabled because a 9 Arc-
Second or better database is not
currently loaded.
Ensure the P/N 010-00330-43 Terrain
Cards are installed in the lower slot of
each display.
If terrain data has been recently
updated, ensure that the correct 9 Arc-
Second databases were used.
5.6
GFC 700 AFCS Troubleshooting
Summary of Contents for Cessna Caravan G1000
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