As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6211, JFK-SAL. RETURNED TO FIELD (JFK). FUEL LEAK CAUTION ON EICAS RAN QRH QRH AND VISIBLE INSPECTION CONFIRMED FUEL LEAK FROM RIGHT WING NACA VENT. NO EVIDENCE OF LEAK FROM ENGINE DRAIN MAST; PERFORMED TEST / INSPECT OF FLOAT VENT VALVE CHECK WAS NORMAL. REF TO AMM 28-12-05/401. REPLACED FUEL PRESSURE RELIEF VALVE AS REQUESTED. REF TO AMM 28-12-01. ALL GROUND OPS WERE NORMAL, LEAK CHECK OF FUEL ACCESS DOOR / PANEL OK.