Acts Online
GT Shield

Civil Aviation Act, 2009 (Act No. 13 of 2009)

Regulations

Civil Aviation Regulations, 2011

Part 91 : General Aviation and Operating Flight Rules

Subpart 4 : Instruments and Equipment

91.04.30 Terrain awareness and warning systems

 

(1) Within six months from the commencement of these Regulations, a turbine-engine aeroplane of a maximum certificated take-off mass in excess of 5 700 kg or authorized to carry more than nine passengers operating according to the IFR shall be equipped with a TAWS which has a predictive terrain avoidance function that meets the requirements specified in Document SA-CATS 91.

 

(2) A TAWS installed in turbine-engine aeroplanes of a maximum certificated take-off mass in excess of 5 700 kg or authorized to carry more than nine passengers for which the individual certificate of airworthiness was first issued after 1 January 2011 shall provide, as a minimum, warnings of at least the circumstances specified in Document SA-CATS 91.

 

(3) Except as provided in subregulation (4), each TAWS required by subregulation (1) shall be functioning properly prior to flight.

 

(4) An aircraft may be operated without a functioning TAWS—
(a) as provided for in an approved MEL; or
(b) if repairs cannot be effected at the aerodrome last operated into, the aircraft is flown by the most direct routing to the nearest facility where the repairs can be made.

 

(5) A TAWS shall automatically provide a timely and distinctive warning to the flight crew when the aeroplane is in potentially hazardous proximity to the earth's surface.