What was found
PHX/ATL - FLT 0610 - AIR TURNBACK. LEFT ENGINE OVERHEAT EICAS AND LIGHT AT 20,000 FEET ON CLIMB-OUT. CHECK COMPLETE LIGHTS EXTINGUISHED, LEFT ENGINE AT IDLE AND RETURNED TO PHX. PER FIM 26-11-10, INSPECTED LEFT BLEED DUCTS, NO LEAKS FOUND. FOUND 3 AREAS OF FIRE LOOP TOUCHING ATTACH TUBE. REPOSITIONED. RAN ENGINE AT HIGH IDLE. (X)