Garmin G1000 Manual page 471

Integrated flight deck

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EXCESSIVE DESCENT RATE ALERT

The purpose of the Excessive Descent Rate (EDR) alert is to provide suitable notification when the

aircraft is determined to be closing (descending) upon terrain at an excessive speed. Figure 6-151 shows the

parameters for the alert as defined by TSO-C151b.

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 6-152. When an RTC alert is issued, a potential impact point is displayed on the

TAWS-B 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 TAWS-B Page. The alert is annunciated when

the projected vertical flight path is calculated to come within minimum clearance altitudes in Figure 6-152.

190-00709-05 Rev. D

Garmin G1000 Pilot's Guide for the Socata TBM 850/900

Warning: "PULL UP"

Descent Rate (FPM)

Figure 6-151 Excessive Descent Rate Alert Criteria

HAZARD AVOIDANCE

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