Boeing interview questions

Received email asking if I would be interested in an interview, had my interview 2 days later. The interview was a teleconference with 6 of the division engineers...very intimidating, but they were very considerate of the fact that having an interview on teleconference is very awkward...you can't just emotions and there is a slight time lag so you have long pauses. Got a second email about an hour and a half after the interview telling me they were intending to proceed with an offer for me for the position. Its been 3 days since that and have not received any other emails or phone calls.