As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL CONFIG EICAS DURING APPROACH. AFTER USING CTR TANK FUEL FLOWS WERE EQUAL. LEFT TANK SHOWED 2000 LESS THAN RIGHT. WITH AP ON AILERON SHOWED MORE THAN 1 UNIT TO THE LEFT. AIRCRAFT ROLLED TO RIGHT WHEN AP WAS OFF . REPLACED VALVE 2 EA. REF. AMM 28-21-05-004-001 AND 28-21-05-404-009