Garmin GTX 330 Pilot's Manual Addendum - Page 43

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WARNING— Estimated potential impact in approximately 15

seconds after alert and annunciation. FLTA warning alerts are

accompanied by the aural message "Terrain, Terrain; Pull

Up, Pull Up" or "Terrain Ahead, Pull Up; Terrain Ahead, Pull

Up". Similarly, a "Obstacle, Obstacle; Pull Up, Pull Up" or

"Obstacle Ahead, Pull Up; Obstacle Ahead, Pull Up" alert is

also provided.

Phase of Flight

Level Flight

En Route

Terminal

Approach

Departure

Minimum TERRAIN Clearance Values for FLTA Alerts

NOTE: 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.

Descending

700 ft.

500 ft.

350 ft.

300 ft.

150 ft.

100 ft.

190-00356-30 Rev C

Premature Descent Alerting (PDA)

The TAWS system issues a Premature Descent

Alert (PDA) when the system detects that the aircraft

is significantly below the normal approach path to a

runway. PDA begins when the aircraft is within 15 NM

of the destination airport.

PDA ends when the aircraft is either:

• 0.5 NM from the runway threshold

• is below an altitude of 125 feet AGL while within

1.0 NM of the threshold.

CAUTION — The above annunciation and pop-up

terrain alert are displayed during a PDA alert. For

TAWS, the PDA alert is accompanied by the aural

message "Too Low, Terrain".

Part Three: Section 3

TAWS Alerts