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Terrain awareness and warning system

In aviation, a terrain awareness and warning system (TAWS) is generally an on-board system aimed at preventing unintentional impacts with the ground, termed "controlled flight into terrain" accidents, or CFIT. The specific systems currently in use are the ground proximity warning system (GPWS) and the enhanced ground proximity warning system (EGPWS).

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Controlled flight into terrain

Controlled flight into terrain (CFIT) is an aviation term that refers to an accident where an aircraft unintentionally impacts the ground or water while under the complete control of the pilot.

Federal Aviation Administration

The Federal Aviation Administration (FAA) is an agency of the United States Department of Transportation.