I take a lot of Delta overseas flights up in business class and they always block both aisles with service carts and post FAs on both aisles before opening the cockpit door. I'm suprised AA doesn't use the same method.
Why do you and so many here not see that posting this information puts flight crews in danger? Not everyone knows things like this.
Fortunately, some airlines have realized this and have taken further precautions so that the safety measures implemented for individual flights come directly from the cockpit before boarding passengers.
Regardless, sharing information like this over the internet is bad.