The first cut is through the general intern program manager, who reviews all the submitted resumes. He them passes them off to the individual project managers who can pick out of that resume pool
I applied through an employee referral. The process took 4 weeks. I interviewed at Boeing in Nov 2011
Interview
Referred to the position from an employee contact, applied through BESS System, was contacted for an in-person interview with a management panel. Interviews (at least for business professionals) are standardized and STAR-based; Situation, Task, Action, Result. HR has since told me that employee referrels are forbidden, but they occur frequently.
Interview questions [1]
Question 1
"Describe your experience working on a team with individuals from diverse backgrounds or cultures."