Airsupport,
I've given you quite some time to reply, but you seem to have left the building. You seem to take any attempt to Analise the rules you fly under, as you interpret them by your statements, as some type of personal attack. Not the case. You made a statement, and subsequently seemed to try and defend it, that peaked my interest. I was simply asking you to definitively state what I thought you were implying, while pointing out it was different (and IMHO not as safe) as operational rules from other regulators.
To summaries- You said you could not operate a particular route single bleed because of the increased risk of depressurisation, and the inability to guarantee oxygen supply to the pax whilst over terrain that would preclude a descent below 14000'. I pointed out that most operations require that guarantee even when all systems are operating.
I would simply like a confirmation that, under Aussie regulations, it is considered a guarantee that you will not depressurise if you have a fully-functioning bleed/aircon system, and that you therefore do not need to be able to descend below 14000' before the pax O2 runs out if you should.