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

Regulations

Civil Aviation Regulations, 2011

Part 121 : Air Transport Operations - Carriage on Aeroplanes of more than 19 Passengers or Cargo

Subpart 5 : Aeroplane Instruments and Equipment

121.05.4 Altitude alerting system

 

(1) A large turbine-engine aeroplane shall not be operated unless it is equipped with an altitude alerting system capable of—
(a) alerting flight deck crew members upon approaching preselected altitude in either ascent or descent in sufficient time to establish level flight at such preselected altitude; and
(b) alerting by at least an aural signal the flight deck crew members when deviating above or below a preselected altitude.

 

(2) A large turbine-engine aeroplane shall not be operated unless such an aeroplane is equipped with a pressure-altitude reporting transponder which operates in accordance with the requirements stipulated in Part 171 and is capable of—
(a) providing pressure-altitude information with a resolution of 25 ft, or better from its aeroplane data source; and
(b) automatically providing information on its airborne or on-ground status by means of a Mode S transponder.

 

[Regulation 121.05.4 substituted by regulation 16(f) of Notice No. R. 3170, GG48228, dated 17 March 2023 (Twenty-Sixth Amendment of the Civil Aviation Regulations, 2023)]