As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FL 26 - EN ROUTE PHL-CDG, CREW RECEIVED THE EICAS MESSAGE 'L STARTER CUTOFF' AND THE ILLUMINATION OF THE START VALVE LIGHT. FLIGHT DIVERTED TO BOS AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT START VALVE. (M)