What was found
LT ENGINE OVERHEAT AT CRUISE (FLT 380). HAD ASSOCIATED CAUTIOM LIGHT, EICAS AND MASTER CAUTION . PERFORMED QRH PROCEDURE INCLUDING ENG SHUTDOWN. LIGHT REMAINED ON ENTIRE TIME. CREW ADVISED THAT ENG WAS SHUTDOWN APPROX 1 HR WITH ENGINE OIL PRESS AT 7 TO 9 PSI WHILE WINDMILLING. SHOT LT ENGINE OVERHEAT DETECTION SWITCHES AND FOUND TO BE GOOD IAW MM 26-13-00-5. R & R LT ENGINE OVERHEAT, FIRE DETECTION CIRCUIT CARD IAW MM 26-10-01-4 AND TESTED ENGINE FIRE DETECTION IAW MM 26-13-00. OPS CHECKS NORMAL. PREMATURE REMOVAL/INSTALLATION.