Leaddie: I’d be a touch more careful if I were you.
The failure to comply with the quoted requirement in AIP is an offence against CAR 99AA(5) – failure to comply with a direction about the use of Class G airspace.
Entry to controlled airspace without a clearance is a different offence (against CAR 100.)
And in which lane ‘north of Sydney’ can someone fly in Class G airspace at 2,500 AGL, Old Bean?
Creamie,
I don't agree that infringing the buffer in the AIP constitutes an offense under CAR 99AA(5). I am firmly of the view that the navigation tolerances quoted do NOT constitute a direction as to the final track of an aircraft flying in G, in an area close to a CTA boundary.
Are you aware of any cases where a pilot has been penalized for infringing the "navigational tolerance zone/buffer"? I am certainly aware of two cases (both involving Brisbane area) where the matter was raised and dismissed --- sorry, I can't quote references, it was too long ago.
As to the base of YSSY CTA in the area of the light aircraft lane, a small section immediately out of YSBK is 2000'. but the rest of the northbound track, after Pennant Hills, and all of the southbound track come under the 2500' step.
Folks,
Re. using your GPS records as evidence in a matter of infringing a CTL boundary, if it's not a TSOd unit, don't even bother to think about it, unless you have very deep pockets.
Even if it is TSOd, you will still need deep pockets.
In the two cases( not the same two as YBBN) in which I have arranged the expert witnesses for the pilot, in each case, the success was based on showing that the radar plot record, that was the evidence for the alleged offense, was not sufficiently accurate to establish the offense to a criminal standard of proof.
Not commonly known is that the radar derived plan position on an ATC screen, and the actual geographic position of targets can vary, this is not necessarily constant, and has been measured with suitably equipped aircraft. This is not a serious problem re. aircraft separation in controlled airspace, because the relative positions of targets of interest to ATC remain accurate.
Tootle pip !!