Garmin Socata TBM850 Pilot's Manual page 431

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 6-137. 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 6-137.
800
700
600
500
400
300
200
100
0
0
Figure 6-137 FLTA Alert Minimum Terrain and Obstacle Clearance Values
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.
190-00709-04 Rev. A
Required Clearance
Level (FT)
5 10
Distance From Runway (NM)
Distance From Runway (NM)
Garmin G1000 Pilot's Guide for the Socata TBM 850
Descending (FT)
15 20 25
HAZARD AVOIDANCE
30
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