Terrain Destination Airport; Terrain Alerts; Pop-Up Alerts - Garmin GNS 530W Pilot's Manual & Reference

2 - NAV PAGES

Terrain Alerts

Nearest Airport Criteria Page
As an example, if the pilot configures the unit
to include only airports with runways 5000 feet or
longer, only these are added to the nearest airport list.
The terrain phase of flight is affected in that all airport
runways under 5000 feet are NOT included in terrain
calculations. During a cross-country flight with this
configuration, only airports runways 5000 feet or
greater cause the unit to go into Terminal or Approach
Mode from En Route mode. If the pilot makes an
emergency landing at an airport that did not show up
in the nearest airport list, FLTA alerts would be issued
throughout the descent.

TERRAIN Destination Airport

The TERRAIN destination airport is considered to
be the next airport in the flight plan while adhering
to the flight plan path. If no flight plan is entered, or
if the aircraft is not adhering to the entered flight plan
path, the terrain destination airport is estimated using
the Nearest Airport Criteria as described in the section
above.
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TERRAIN Alerts
TERRAIN alerts are issued when flight conditions
meet parameters that are set within the TERRAIN
system software algorithms. When an alert is issued,
visual annunciations are displayed. Annunciations
appear in a dedicated field in the lower left corner of
the display.
TERRAIN Annunciation Field

Pop-up Alerts

On any page except the TERRAIN Page, when a
terrain or obstacle alert is issued, a pop-up window is
displayed with the appropriate alert.
To acknowledge the pop-up alert and return to
the currently viewed page:
Press the CLR key.
To acknowledge the pop-up alert and quickly
display the TERRAIN Page:
Press the ENT key.
Pop-up Terrain Alert