As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENG OVHT EICAS MESSAGE. FOLLOWED FLIGHT MANUAL PROCEDURE, REDUCED THROTTLE, MESSAGE REMAINED. SHUTDOWN ENGINE. *S/D* THE EICAS RT ENG OVHT MSG WITHOUT DISCRETE LIGHT ON WAS CAUSED BY AFOLTS CARD M10274. THE CARD WAS REPLACED AND SYSTEM CHECKED OK. SHOP CHECK OF THE CARD CONFIRMED THE FAULT WAS A SHORTED COMPONENT ON THE CARD.