As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT (FUEL CONFIG) LIGHT ILLUMINATED AND THE EICAS ADVISORY MESSAGE (FUEL CONFIG) WAS DISPLAYED. ACCOMPLISHED THE FUEL CONFIGURATION CPM PROCEDURES AND LANDED WITHOUT INCIDENT. REMOVED AND REPLACED MANIFOLD (O-RING) IN PYLON AT STATION 287.9. LEAK CHECK NORMAL.