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Aviation Learning Center Document AC 61-134 - Controlled Flight into Terrain Awareness
Author: Federal Aviation Administration Date: April 1, 2003
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5. Definitions.
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a. Controlled Flight into Terrain (CFIT).

CFIT occurs when an airworthy aircraft is flown, under the control of a qualified pilot, into terrain (water or obstacles) with inadequate awareness on the part of the pilot of the impending collision.

b. Loss of Control.

The term, loss of control, refers to emergency situations from which a pilot may have been able to recover but did not, such as problems with situation awareness, recovery from windshear, mishandling of an approach, and recovery from a stall.

c. Situational Awareness.

As used in this AC, situational awareness means the pilot is aware of what is happening around the pilot's aircraft at all times in both the vertical and horizontal plane. This includes the ability to project the near term status and position of the aircraft in relation to other aircraft, terrain, and other potential hazards.

d. Crewed Aircraft.

In this AC, crewed aircraft refers to an aircraft or flight operation in which more than one pilot is required by aircraft certification or type of operation.

e. Single-Pilot Aircraft.

In this AC, single-pilot means only one pilot is required by the aircraft certification. Normally, only one pilot flies such an aircraft.

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