After I filled in the online application it took me around 4 weeks to hear back from AA. After the video interview, another 2 weeks or so to hear back from them. I went to Dallas for the face to face interview and due to weather conditions my group was very small comparing to what I've read here (30 people only). The recruiters introduced themselves, then we split in groups of 5 and did the ice beaker. I volunteered to speak for my groups and then passed the chance so others could do the same. After that we were sent in groups of 3 to a more personal interview with two recruiters. That went well too.
After all the groups we're done, they showed us a video about the company. After that they took some of us to sign a paper in which you attest that all your information is true and reliable. Now here things start to warm up: They took some of us to perform a test which consisted in reaching a fire extinguisher located inside a overhead compartment. Following to the test, the ones that had made it so far were taken for fingerprinting and then, another interview. This time just myself and a recruiter. I took the opportunity to actually bond with my recruiter, leave a good impression so that he would remember who I was by the end of the day. That worked out pretty well.
24 hours after I've finished the face to face interview I received the email invitation for the medical and drug test. 5 days later, I was offered the position. Now I'm waiting to know when my training will start.
It was a very good and pleasant experience, no need to feel nervous at all. Just be yourself, be friendly, show them that you're a approachable person, smile, smile, smile. When answering questions, take some time to make eye contact with everybody. Including the other applicants. Find a balance between showing yourself off to the recruiters, without being to cocky or ignoring the people applying with you. When someone is talking, pay attention to them, look at them. Make sure you show you're a good listener and a good team worker.
I saw some people here saying that they don't care if you're not well groomed, that they want people easy to be brain washed. That is not true. Dress conservative, sell your image and your personality. Dress as if the job is already yours. I hope this can help future applicants and I wish you all the best of luck.