As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE CONTROL SYS FAULT LT - RT EICAS MESSAGE DISPLAYED IN CRUISE FLIGHT AT FL320. CREW TURNED AROUND AND RETURNED TO ORIGIN AIRPORT AND LANDED WITHOUT INCIDENT. DETERMINED FAILURE OF TT2 SENSOR ON NR 2 ENGINE. SENSOR CHANGE AND AIRCRAFT OPERATED WITHOUT FURTHER INCIDENT.