As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB CREW NOTED THE FUEL FROM THE CTR TANK WAS NOT BEING USED & THE WING TANKS WERE IN USE. EMERGENCY DECLARED, RETURNED TO DEPARTURE, AND LANDED UNEVENTFULLY. R & R CTR AFT BOOST PUMP IAW AMM 28-20-07-201. SYS CHECKED NORMAL IAW AMM 28-20-07.