Here's my experience for reference:
8/26: Renewal Application for Child at Local Acceptance Facility (Expedite everything)
8/30: Tracking USPS shows arrival in PA facility
8/31: Check cashed
9/7: Application received - In Process - 42 location
9/13: Another? Application Received - In Process
9/30: Approved
9/30: Passport Arrives
Start to finish, 35 days for expedite