Going Boeing...
Thanks for clarifying that. I misunderstood your post.
I believe that the problem relating to QF flying "twins" over the Himalayas was due to the B767's having pax oxy generators of limited duration that was insufficient for what was required before the aircraft could descend to 14,000'.
The QF A330's have the same problem. 15 minutes limit on the Oxy generators.
Capt Kremin and GB -
The International -200s have 22 min PSU oxygen. Is that still not enough to meet the requirement?