190-00962-02 Rev. A
Garmin G1000 Pilot’s Guide for the Diamond DA42NG
401
HAZARD AVOIDANCE
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
Alert Type
PFD/MFD*
Alert
Annunciation
MFD
Pop-Up Alert (except
Terrain-SVS Page)
Aural Message
Reduced Required Terrain Clearance
Warning (RTC)
“Warning; Terrain, Terrain”
Imminent Terrain Impact Warning (ITI)
“Warning; Terrain, Terrain”
Reduced Required Obstacle Clearance
Warning (ROC)
“Warning; Obstacle, Obstacle”
Imminent Obstacle Impact Warning (IOI)
“Warning; Obstacle, Obstacle”
Reduced Required Terrain Clearance
Caution (RTC)
“Caution; Terrain, Terrain”
Imminent Terrain Impact Caution (ITI)
“Caution; Terrain, Terrain”
Reduced Required Obstacle Clearance
Caution (ROC)
“Caution; Obstacle, Obstacle”
Imminent Obstacle Impact Caution (IOI)
“Caution; Obstacle, Obstacle”
* Annunciation is displayed on the MFD when terrain display is enabled.
Table 6-24 Terrain-SVS Alerts Summary
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 Figure 6-156. When an RTC alert is issued, a potential impact point is displayed on the
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 Terrain-SVS Page. The alert is annunciated when
the projected vertical flight path is calculated to come within minimum clearance altitudes in Figure 6-156.
