Regarding AOS...what is this message from CRIS?

[amerasianlove 0]

On April 21, 2009, we transferred this I485 APPLICATION TO REGISTER PERMANENT RESIDENCE OR TO ADJUST STATUS to our NATIONAL BENEFITS CENTER location for processing because they now have jurisdiction over the case. We sent you a notice of this transfer. Please follow any instructions on this notice. You will be notified by mail when a decision is made, or if the office needs something from you. If you move while this case is pending, call customer service. We process cases in the order we receive them. You can use our processing dates to estimate when this case will be done. This case has been sent to our NATIONAL BENEFITS CENTER location. Follow the link below to check processing dates. You can also receive automatic e-mail updates as we process your case. Just follow the link below to register.

[Bobby+Umit 161]

The NBC was established to serve as the hub and conduit for USCIS local field offices by completing all pre-interview processing of Forms generally requiring an interview. This pre-processing includes conducting background security checks, performing initial evidence reviews, adjudication of associated I-765 and I-131 applications (filed with the I-485 or separately), denial of adjustment of status cases for applicants who are statutorily ineligible, and forwarding scheduled cases to the USCIS local office for adjudication

So they are doing something with your case.

Source:USCIS NBC

[YuAndDan 153]

Since CSC transferred it back to NBC, this looks like the adjudicator at CSC decided an interview will be needed for approval, next step will be your field office sending you an interview appointment letter.