Document ID: chunk:federal_register_of_legislation:F2025C00187:reg:8:p3
Version: federal_register_of_legislation:F2025C00187
Segment Type: reg
Provision Reference: reg 8 (pt 3/11)
Character Range: 318477–321350

(4), an aircraft for a flight under the VFR by day in Class G airspace at or below 5 000 ft AMSL (a relevant aircraft) is not required to comply with subsection (1).
       (3)  Subsection (2) does not apply if a relevant aircraft is operating in accordance with the VMC criteria at item 4, 5 or 6 of Table 2.07 (3).
       (4) Subsection (2) does not apply if a relevant aircraft is operating within, or intending to enter, an MBA.
Note   Certain operational requirements for MBA are contained in section 11.10A. Radio broadcast requirements for MBA are contained in section 21.09.

      26.19 When aircraft may begin a flight with inoperative radiocommunications
        An aircraft for which a radiocommunication system is required may begin a flight with inoperative radiocommunication system if:
(a) the flight begins from a departure aerodrome with no facility for the radiocommunication system to be repaired or replaced; and
(b) the flight is to the nearest facility at which the radiocommunication system can be repaired or replaced; and
(c) for the portions of the flight conducted in controlled airspace:
           (i) ATS is informed, before the flight begins, of the inoperative radiocommunication system; and
           (ii) clearance is obtained from ATS for the flight; and
(d) for the portions of the flight conducted in Class G airspace above 5 000 ft AMSL, or conducted in an MBA:
           (i) the flight is conducted during the day in VMC; and
           (ii) the flight is conducted in-company with another aircraft (the other aircraft); and
           (iii) the other aircraft is carrying an operative radio; and
           (iv) the pilot in command of the other aircraft ensures that all the broadcasts and reports required by regulation 91.630 are made for both aircraft; and
           (v) the pilot in command of the other aircraft is:
            (A) if the aircraft is an Australian aircraft — authorised under Part 61 of CASR to operate the radio; or
            (B) if the aircraft is a foreign registered aircraft — authorised to operate the radio under the law of the aircraft's State of registry.
Note 1   For continuation of a flight with an inoperative radiocommunication system, see sections 11.10 and 11.18.
Note 2   Regulation 91.400 places certain requirements on aircraft without an operative radio at certain non-controlled aerodromes.

26.20 Equipment to measure and record cosmic radiation
       (1) An aeroplane conducting an IFR flight above FL 490 must be fitted with equipment to measure and display the total cosmic radiation received in the aeroplane's cabin.
       (2) For subsection (1), the equipment must continuously measure and display:
(a) the dose rate of total cosmic radiation being received during the flight; and
(b) the cumulative dose of total cosmic radiation received on each flight.
       (3) In this