Garmin G1000 Mooney M20TN - Manual (Page 286)

Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 190-00647-00 Rev. A 6-50
HAZARD AVOIDANCE
FORWARD LOOKING TERRAIN AVOIDANCE
The Forward Looking Terrain Avoidance (FLTA) alert is used by TAWS and is composed of:
•
R
EDUCED
R
EQUIRED
T
ERRAIN
C
LEARANCE AND
R
EDUCED
R
EQUIRED
O
BSTACLE
C
LEARANCE
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 minimum clearance
values in Table 6-13. When an RTC alert is issued, a potential impact point is displayed on the TAWS
Page.
•
I
MMINENT
T
ERRAIN
I
MPACT AND
I
MMINENT
O
BSTACLE
I
MPACT
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 Page. The alert is annunciated when the
projected vertical flight path is calculated to come within minimum clearance altitudes in Table 6-12.
Phase of Flight Minimum Clearance
Altitude Level Flight
(ft.)
Minimum Clearance
Altitude Descending
(ft.)
Enroute 700 500
Terminal 350 300
Approach 150 100
Departure 100 100
Table 6-12 Minimum Terrain and Obstacle Clearance Values for FLTA Alerts
During the final approach phase of flight, FLTA alerts are automatically inhibited when the aircraft is
below 200 feet AGL while within 0.5 nm of the approach runway or is below 125 feet AGL while within
1.0 nm of the runway threshold.