As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL WILL NOT TRANSFER FROM CENTER TO RIGHT WING. FUEL MIGRATES BACK TO CENTER TANK FROM LEFT WING. PERFORMED OPS CHECK OF CENTER TANK TRANSFER SYSTEM. FUEL TRANSFERS FROM CENTER TO RIGHT TANK NORMALLY. WITH 80 LBS IN CENTER TANK AND 3000 LBS FUEL IN WING TANK. AFTER 10 HOURS NO FUEL MIGRATED TO THE CENTER TANK. UNABLE TO DUPLICATE SQUAWK. IAW MM 28-20-00.