As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNCOMMANDED FUEL XFER FROM RIGHT TO CENTER TANK CONTINUOUS 2000 LBS-HR. REPLACED CENTER TANK RT OVERRIDE-JETTISON PUMP DISCHARGE CHECK VALVE, ACP'D FUNCTIONAL CHECK AND NO TRANSFER NOTED. CENTER RT OVERRIDE JETTISON PUMP REMOVED AND REINSTALLED. TRANSFERRED FUEL AND ACP'D LEAK CHECK, ALL NOW OK.