Pilot's Guide

Garmin G1000 Pilot’s Guide for the Beechcraft C90A/GT/GTi
190-00663-03 Rev. A376
HAZARD AVOIDANCE
Required Terrain Clearance
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Distance From Runway (NM)
Required Terrain Clearance (FT)
RTC Level (FT) RTC Descending (FT)
Figure 6-89 FLTA Alert Minimum Terrain and Obstacle Clearance Values
Distance From Runway (NM)
Required Terrain Clearance (FT)
The system automatically suppresses FLTA alerts from occurring under any of the following conditions:
• The aircraft is less than 200 feet above the destination elevation and within 0.5 nm of the destination.
• The aircraft is less than fifty feet above terrain or on the ground.
• The aircraft is between runway ends.
PREMATURE DESCENT ALERTING
A Premature Descent Alert (PDA) is issued when the system detects that the aircraft is significantly
below the normal approach path to a runway (Figure 6-90).
PDA alerting begins when the aircraft is below 700 feet AGL within 15 nm of the destination airport and
ends when the aircraft is 0.5 nm from the runway threshold.
Figure 6-90 PDA Alerting Threshold
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Height Above Destination (Feet)
Distance to Destination (NM)
PDA ALERTING AREA