As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJU - INFLIGHT MIA-CNF CREW REPORTED FUEL SYSTEM BECAME ERRATIC AND UNRELIABLE AND THE FUEL TOTALIZER WAS BLANK ON BOTH FLIGHT MANAGEMENT COMPUTERS. EMERGENCY DECLARED FLIGHT DIVERTED SJU LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED FUEL QUANTITY INDICATING SYSTEM PROCESSOR UNIT. SYSTEM GROUND CHECK NORMAL OPERATION.