System Status - Garmin G1000 Pilot's Manual

FORWARD LOOKING TERRAIN AVOIDANCE
Reduced Required Terrain Clearance (RTC) and Reduced Required Obstacle Clearance (ROC)
alerts are issued when the aircraft flight path is above terrain, yet is projected to come within the minimum
clearance values in the following figure. When an RTC alert is issued, a potential impact point is displayed
on the MAP - TERRAIN-SVS Page.
Imminent Terrain Impact (ITI) and Imminent Obstacle Impact (IOI) alerts are issued when the
aircraft is below the elevation of a terrain or obstacle cell in the aircraft' s projected path. ITI and IOI alerts
are accompanied by a potential impact point displayed on the MAP - TERRAIN-SVS Page. The alert is
annunciated when the projected vertical flight path is calculated to come within minimum clearance altitudes
in the following figure.
FLTA alerts are automatically inhibited when the aircraft is less than 200 feet above the destination runway
elevation while within 0.5 nm of the approach runway or the aircraft is between runway ends.

SYSTEM STATUS

During initialization, Terrain-SVS conducts a system test of its aural and visual annunciations. An aural alert
is issued at test completion.
Alert Type
System Test in Progress
System Test Pass
Terrain System Test Fail
* Annunciation is displayed on the MFD when terrain display is enabled.
190-02692-00 Rev. A
Required Terrain Clearance
RTC Level (FT)
800
700
600
500
400
300
200
100
0
0 5 10
Distance From Runway (NM)
Figure 6-63 FLTA Alert Minimum Terrain and Obstacle Clearance Values
PFD/MFD* Alert Annunciation
Table 6-12 Terrain-SVS System Test Status Annunciations
Garmin G1000 Pilot's Guide for the Piper PA-32 Saratoga
RTC Descending (FT)
15 20
Distance From Runway (NM)
TER TEST
None
TER FAIL
HAZARD AVOIDANCE
25 30
Aural Message
None
"Terrain System Test OK"
"Terrain System Failure"
323