Boeing interview questions

I first submitted an online application. Followed up by a phone call to schedule the interview I had 1 interview for the position, it consisted of a group of 6 people, the manager I would be working for, one other 1st level manager and 4 people from the group I would be working with. They went around the table asking me questions and it lasted about an hour. I was given the opportunity to ask any questions I had. I was contacted by HR that I was being offered the job, and they would be sending me a packet to complete and return, so they could run a background check and such. Also, I was instructed to go to a lab for a pre-employment drug screening.