What was found
LAX - FLT 0032 - DURING DEPARTURE FROM LAX, LEFT ENGINE OVERHEAT EICAS MESSAGE APPEARED, THROTTLE WAS RETARDED. WHEN THROTTLE WAS ADVANCED, THE MESSAGE APPEARED ONCE AGAIN. AIR INTERRUPTED AND RETURNED TO LAX, LANDED WITHOUT FURTHER INCIDENT. CHECKED RESISTANCE OF BOTH OVERHEAT LOOPS AND WERE FOUND NORMAL. CLEANED AND RESEATED PYLON PLUG. SYSTEM GROUND CHECKED NORMAL OPERATION. ACCOMPLISHED ENGINE RUN AT TAKEOFF POWER FOR ONE MINUTE, NO OVERHEAT MESSAGE. (X)