Document ID: chunk:federal_register_of_legislation:F2025C00187:reg:5:p8
Version: federal_register_of_legislation:F2025C00187
Segment Type: reg
Provision Reference: reg 5 (pt 8/9)
Character Range: 170442–173308

becomes inoperative during a flight, the pilot in command must do the following:
(a) if operating under the VFR in Class G or Class E airspace:
           (i) select code 7600 on the aircraft transponder (if fitted); and
           (ii) remain outside controlled airspace; and
           (iii) assume the radiocommunication system is broadcasting and broadcast position and intentions on the frequency appropriate to the area of operation; and
           (iv) as soon as practicable, descend below 5 000 ft to continue flight under the VFR;
(b) if operating under the VFR in Class A, B, C or D airspace or in a restricted area, or if operating under the IFR in any class of airspace whether controlled or uncontrolled:
           (i) select code 7600 on the aircraft transponder (if fitted); and
           (ii) assume the radiocommunication system is functioning and broadcast position and intentions on the frequency prescribed in the authorised aeronautical information; and
           (iii) if the aircraft is in VMC and certain of maintaining VMC — remain in VMC and land at the most suitable aerodrome; and
           (iv) if the aircraft is in IMC or is uncertain of maintaining VMC:
            (A) maintain the last assigned altitude or level (or LSALT if higher) for 3 minutes; and
            (B) maintain the last assigned vector for 2 minutes, or fly one more holding pattern; and
            (C) after complying with sub-subparagraphs (A) and (B) — proceed in accordance with the latest ATC route clearance acknowledged; and
            (D) commence descent in accordance with latest ATC route clearance acknowledged; and
            (E) conduct the most suitable IAP.

      11.10A Mandatory broadcast area requirements
       (1) This section applies to the pilot in command of a flight in a mandatory broadcast area (an MBA) mentioned in subsection (2).
       (2) A volume of Class G airspace within the Australian FIR is an MBA if it is so specified in the AIP, as in force from time to time.
Note 1   At the commencement of this instrument, the AIP specifies which broadcast areas are mandatory broadcast areas and also the lateral and vertical boundaries of each MBA.
Note 2   This section contains MBA requirements other than those for the specific radio broadcasts or reports required to be made in relation to an MBA, or the radio carriage or fitment requirements for flight within an MBA. Radio broadcast and report requirements for an MBA are contained in section 21.09. Radio carriage or fitment requirements for an MBA are contained in section 26.18.
       (3) For an MBA mentioned in an item of column 1 of Table 11.10A (3), the pilot in command must comply with the requirements mentioned in column 2 of the same item.

Table 11.10A (3) — Mandatory Broadcast area requirements

      Column 1                   Column 2
Item  Mandatory