As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL TRANSFERRED TO RT WING TANK DURING CTR PUMP OPERATION. MX FOUND SEAL FROM AFT FUEL SURGE ACCESS PANEL HAD MIGRATED INTO THE RT WING FUEL PUMP SUCTION VALVE. MX REPLACED THE PUMP SUCTION VALVE (PN D2825006400200)AND FUEL SURGE VALVE SEAL (PN 5725054220000) AND PERFORMED OPS AND LEAK CHECK IAW AMM 28-21-42-000-001.