What was found
CREW DECLARED AN EMERGENCY AND ACFT DIVERTED. FUEL LEAK DURING CRUISE FROM LEFT WING. RECEIVED A FUEL COMPARE MISMATCH MESSAGES AND A RESERVE FUEL LOW MESSAGE ON MCDU. PERFORMED GVI OF LT AND RT WINGS, WHILE MOVING FLIGHT CONTROLLER PERFORMED ENG RUNS AND GVI OF FUEL SYS ACCESSIBLE FROM FAIRING AND FUEL PANEL. NO LEAKS NOTED AT THIS TIME UNABLE TO FIND SOURCE OF LEAK. PERFORMED DVDR AND FHDB DOWNLOAD IAW AMM 45-45-00. ENGINEERING ANALYZED DATA AND FOUND NO CONCLUSIVE FAULTS. ALL PARAMETERS FOUND NORMAL. ACFT OK FOR CONTINUE SERVICE.