52.74 Transponders

52.74.2 State the requirements for the operation of transponders within the New Zealand FIR. CAR 91 & AIP ENR

91.247 Use of transponder and altitude reporting equipment

(a) Except as provided in paragraph (g), a pilot-in-command of an aircraft operating in transponder mandatory special use airspace or transponder mandatory controlled airspace below flight level 245 designated under Part 71 within the New Zealand FIR must, unless otherwise authorised or instructed by ATC, operate the transponder —

(1) in Mode A and Mode C; or

(2) in Mode S if the aircraft is equipped with Mode S equipment and allocated a unique Mode S code referred to in paragraph (d); or

(3) to transmit ADS-B data, if the aircraft is equipped with an ADSB system that meets the requirements under rule 91.257.

(b) Except as provided in paragraph (g), a pilot-in-command of an aircraft operating in transponder mandatory controlled airspace above flight level 245 designated under Part 71 within the New Zealand FIR must, unless otherwise authorised or instructed by ATC, operate the transponder to transmit ADS-B data.