What was found
L ENG OVERHEAT - AT CRUISE, ECIAS MSG "L ENG OVERHEAT" FOLLOWED QRH PROCEDURE - L ENG OVERHEAT EXTINGUSHED AT IDLE, CONTINUED FLIGHT AT IDLE PWR. NO SECONDARY INDICATIONS OF OVERHEAT. N1 82% AT CRUISE AT 2 HOURS OF FLIGHT TIME. INSPECTED NR 1 ENGINE - NO DEFECTS NOTED, PERFORMED NR 1 ENGINE RUN UP IAW FIM TASK 36-10-00-85-802, ALL ENGINE PARAMETERS WITHIN LIMITS, EICAS MSG & ENG MSG EXTINUSHED, A/C OK TO CONTINUE.