Document ID: chunk:federal_register_of_legislation:F2024C00332:reg:9:p1
Version: federal_register_of_legislation:F2024C00332
Segment Type: reg
Provision Reference: reg 9 (pt 1/5)
Character Range: 242769–245682

9                                                      In flight emergency, unless otherwise instructed by ATC.                                7700

11.55  Mode S transponders and ADS-B OUT — specific requirements
 (1) An approved Mode S transponder fitted to a rotorcraft for a flight must be configured in accordance with the following:
 (a) the assigned aircraft address must be entered into the equipment;
 (b) as far as practicable for the equipment — with one of the following forms of aircraft flight identification entered into the equipment:
 (i) if a flight notification is filed with ATS for the flight — the aircraft identification mentioned in the flight notification;
 (ii) if no flight notification is filed with ATS for the flight — the aircraft registration mark.
 (2) An approved ADS-B OUT equipment configuration fitted to a rotorcraft for a flight must be configured in accordance with the following:
 (a) the assigned aircraft address must be entered into the equipment;
 (b) with one of the following forms of aircraft flight identification entered into the equipment:
 (i) if a flight notification is filed with ATS for the flight — the aircraft identification mentioned in the flight notification;
 (ii) if no flight notification is filed with ATS for the flight — the aircraft registration mark.
 (3) An approved Mode S transponder must transmit each of the following when interrogated on the manoeuvring area of an aerodrome or in flight:
 (a) the assigned aircraft address;
 (b) the Mode A code;
 (c) the Mode C code;
 (d) subject to subsection (4) — the aircraft flight identification.
 (4) Transmission of the aircraft flight identification by an approved Mode S transponder is optional for a rotorcraft that was first certificated in its country of manufacture before 9 February 2012 (an older rotorcraft).
Note: An older rotorcraft that is equipped to transmit its aircraft flight identification may transmit this.
 (5) If an approved Mode S transponder transmits any Mode S EHS DAPs, the transmitted DAPs must comply with the standards stated in paragraph 3.1.2.10.5.2.3 and Table 3‑10 of Volume IV, Surveillance and Collision Avoidance Systems, of ICAO Annex 10.
Note 1: Paragraph 3.1.2.10.5.2.3 includes paragraphs 3.1.2.10.5.2.3.1, 3.1.2.10.5.2.3.2 and 3.1.2.10.5.2.3.3.
Note 2: Australian Mode S SSR supports EHS DAPs. Transmission of Mode S EHS DAPs that are not in accordance with the ICAO standards may provide misleading information to ATC. Operators need to ensure that EHS DAPs are being transmitted.
 (6) If an approved Mode S transponder is fitted to a rotorcraft first certificated in its country of manufacture on, or after, 9 February 2012:
 (a) having a certificated MTOW above 5 700 kg; or
 (b) that is capable of normal operation at a maximum cruising true airspeed above 250 kts;
  the transponder's receiving and transmitting antennae must:
 (c) be located in