RareBear I didn't mean to sound snippy. I apologize if it came off that way. Channel 9 IS
a very very common topic however, and every few weeks the same questions get asked. So I was being kinda serious when I mentioned Channel 9 as a FAQ topic. Along with A vs. B and a number of other recurring threads.
Like I said I've been on every fleet type UA
has and had Channel 9 on everyone of them. There were time when as we said the crew makes the decision for whatever reason to keep it off. But it is always an option unless you are UAX.
As for international flights I can only speak for my flight to CDG
when I listened all the way to Paris. My return from LHR
the crew had it off.
A little less Hooah, and a little more Dooah.