SE001: Terrain Awareness Warning System (TAWS) - Rule

ec. 121.354, Terrain awareness and warning system

(a) Airplanes manufactured after March 29, 2002.

No person may operate a turbine-powered airplane unless that airplane is equipped with an approved terrain awareness and warning system that meets the requirements for Class A equipment in Technical Standard Order (TSO)-C151. The airplane must also include an approved terrain situational awareness display.

(b) Airplanes manufactured on or before March 29, 2002.

No person may operate a turbine-powered airplane after March 29, 2005, unless that airplane is equipped with an approved terrain awareness and warning system that meets the requirements for Class A equipment in Technical Standard Order (TSO)-C151. The airplane must also include an approved terrain situational awareness display.(Approved by the Office of Management and Budget under control number 2120-0631)

(c) Airplane Flight Manual.

The Airplane Flight Manual shall contain appropriate procedures for:

  1. The use of the terrain awareness and warning system; and
  2. Proper flight crew reaction in response to the terrain awareness and warning system audio and visual warnings.

Amdt. 121-273; Eff. 3/29/2001

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