What was found
DIVERTED TO DENVER WITH NR 1 ENGINE OVERHEAT LIGHT ON. LANDED ON AMBER ALERT WITH ENGINE SHUTDOWN. CREW REPORTED CRUISING AT FL350, NR 1 ENGINE OVERHEAT LIGHT FLICKERED TWICE AND THEN CAME ON STEADY. ACCOMPLISHED ENGINE OVERHEAT CHECK LIST, LIGHT STAYED ON. PERFORMED TROUBLESHOOTING OF NR 1 ENGINE OVERHEAT DETECTION SYSTEM. FOUND NR 1 ENGINE M1122 CORE LOOP-A BREAKING DOWN UNDER LOAD. REMOVED AND REPLACED CORE LOOP-A. ALSO REPLACED NR 1 ENGINE CORE LOOP-B FOR GETTING FAULT LIGHT WHEN TESTING OVERHEAT DETECTION SYSTEM. NR 1 ENGINE OVERHEAT SYSTEM CHECKED GOOD PER AMM.