"Wouldn't be liked by the US but may stop the current unfair trading conditions......."
What is unfair about it? Even in Ch.11 companies do pay their bills, sure they alter the debt state. They discuss the debt with their lenders, but they still have to pay the daily bills. Of note should be, that say in the case of UAL, very, very few of the leaseholders have decided to take back their airplanes.
If BA was able to negotiate better lease deals would that be unfair to others who might not?
Before you all start flaming away, I should say, that I do not work for UAL or any other ch.11 airline, actually compete with them. Further, if you want to have a meaningful discussion, you should look up US Ch.11 laws.
Now, I am donning my asbestos suit