Document ID: chunk:federal_register_of_legislation:F2024C01173:reg:3:p3
Version: federal_register_of_legislation:F2024C01173
Segment Type: reg
Provision Reference: reg 3 (pt 3/4)
Character Range: 279633–282410

effectively using any crew intercommunications or radiocommunications equipment fitted to, or carried on, the aeroplane.

11.46  First-aid oxygen equipment—pressurised aeroplane
 (1) In this section:
First-aid oxygen means a supply of undiluted oxygen for any passengers who, for physiological reasons, may still require oxygen when:
 (a) there has been a cabin depressurisation; and
 (b) the amounts of supplemental oxygen supply otherwise required under this Division have been exhausted.
 (2) Until immediately before 2 December 2023, an aeroplane must comply with the requirements related to first-aid oxygen (however described) in accordance with:
 (a) Civil Aviation Order 20.4, and Civil Aviation Order 108.26, as in force immediately before the commencement of this instrument; or
 (b) this section.
 (3) With effect from the beginning of 2 December 2023, an aeroplane must be fitted with or carry first-aid oxygen in accordance with this section.
 (4) This section applies to a pressurised aeroplane that:
 (a) is flown above FL 250 at any stage during the flight; and
 (b) carries a passenger on the flight.
 (5) When the aeroplane begins the flight, it must carry, for use in first aid, such a volume of first-aid oxygen as will provide an average oxygen gas flow rate, calculated assuming dry oxygen gas at standard temperature and pressure, of 3 litres per minute per person:
 (a) for whichever of the following is the greater number of persons:
 (i) 2% of the number of passengers carried on the flight;
 (ii) 1 person; and
 (b) for the flight period after a cabin depressurisation event during which the aeroplane's cabin pressure altitude is above 8 000 ft but is not above 15 000 ft.
 (6) When the aeroplane begins the flight, it must carry, for use in dispensing first-aid oxygen, a sufficient number of specific first-aid oxygen dispensing units relative to the number of passengers on board, but in no case less than 2 such units.
 (7) An oxygen dispensing unit:
 (a) must be capable of generating a flow rate, calculated assuming dry oxygen gas at standard temperature and pressure, of at least 4 litres per minute per person STPD; and
 (b) may have a means of reducing the flow to not less than 2 litres per minute per person STPD at any altitude.

Division 10—Emergency locator transmitters

11.47  Carriage of ELTs
 (1) Until immediately before 2 December 2023, an aeroplane for a flight must be fitted with or carry emergency locator transmitters (ELTs) in accordance with:
 (a) regulation 252A of CAR, and subsection 6 of Civil Aviation Order 20.11 (as it applies to ELTs), as each of those provisions is in force immediately before the commencement of this instrument; or
 (b) this Division.
 (2) For the purposes of paragraph (1)(a), if immediately