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NPRM 0814OS - Radio Broadcasting by Pilots Overflying Non-Designated, Non-Controlled Aerodromes - Introduction of New CAR 166C
On 17th October 2008, CASA announced that new rules relating to the minimum broadcasts required to be made by pilots operating at, and in the vicinity of, all non-controlled aerodromes will be finalised and introduced in the first quarter of 2009.
Extensive consultation has been conducted by CASA on associated issues, principally with the industry via the Standards Consultative Committee and its relevant subcommittees. However, a key issue – the broadcast requirements that should apply to pilots overflying non-designated, non-controlled aerodromes (i.e. those non-controlled aerodromes that are not "CTAF(R) aerodromes") – remains controversial, and CASA has decided that wider public consultation on this particular matter should be carried out before the rules are finalised.
Key changes (as proposed in November 2008)
NPRM 0814OS proposes a new, outcome-based requirement relating to broadcasts that pilots must make if overflying (transiting) in the vicinity of a non-designated, non-controlled aerodrome. In summary, the pilot would be responsible for broadcasting specified information on the aerodrome frequency whenever it is reasonably necessary to do so to avoid a collision, or risk of a collision, between the pilot's aircraft and any other aircraft that is operating in the vicinity of the aerodrome. The proposed rule would only apply if the aircraft carries a serviceable aircraft VHF radio.
In view of the very narrow scope of proposed new CAR 166C, consultation comments on the NPRM are required by 23 December 2008.
Related changes resulting from a decision by CASA's CEO announced on 17 October 2008:
- Generally extend radio monitoring and broadcast requirements to all non-controlled aerodromes, for radio-equipped aircraft (except for overflights of non-designated, non-controlled aerodromes the requirements for which are the subject of this NPRM).
- The horizontal distance element of the definition of "in the vicinity of" a non-controlled aerodrome is to be changed from being 10 miles to being the greater of 10 miles or the distance from the aerodrome that the aircraft will travel in 8 minutes flying time.
- A new overarching broadcast requirement is introduced — the pilot-in-command is to be responsible for broadcasting on the aerodrome frequency whenever it is reasonably necessary to do so to avoid a collision, or risk of a collision, between his/her aircraft and any other aircraft operating at, or in the vicinity of, the aerodrome (with specific minimum mandatory broadcasts required as recommended by the CASR Part 91 Control Board).
- Straight-in approach positional broadcast to be made at least 5 miles from the runway threshold, rather than only requiring an intention to conduct such an approach to be broadcast without specifying when.
- In the case of an aircraft operating within more than one non-controlled aerodrome vicinity at the same time and differing CTAFs being in use, the pilot-in-command is to be responsible for determining the most appropriate CTAF to monitor, having regard to his or her intentions and the known or likely traffic at each.
- Format of broadcast information as now specified in the AIP (ENR 1.1 paragraph 21.1.12) is given a head of power as new CAR 166D.
How to respond
Comment period now closed
- NPRM 0814OS — Preamble
- NPRM Annex A — Proposed amendments to Civil Aviation Regulations (CARs) and Civil Aviation Orders (CAOs)
- NPRM Annex B — Integration of Current and Proposed CAR Text
- NPRM Annex C — Part 91 Control Board Meeting report
- Comments closed: 23 December 2008
Contact Peter Robbins