My PD is current since May 2011, my file was transferred to National Records Center, and they requested back after my Infopass appointment on 5/27, came back on 6/17, but no change in status until now, have requested Service Request - no change, called USCIS couple of times and spoke to 2nd Level CSR, no change, Have involved the Senator, they said, they will take 2-3 weeks, almost 2 weeks have passed, still waiting for the update.
Hoping to get Green and end the long Journey to GC.
Good Luck to all who are waiting.