What was found
INSPECTION TYPE:N/A DIVERSION, EMERGENCY DECLARED, LANDED UNEVENTFUL. CLIMBING THROUGH 33,000 RECEIVED EICAS MESSAGE L ENG OVERHEAT AND LIGHT RAN QRH REDUCED POWER ON LEFT HACKED THE CLOCK WAITED 2 MIN MESSAGE AND LIGHT DID NOT GO OUT SHUT ENGINE DOWN DIVERTED TO TUL 5 MINS BEFORE LANDING EICAS MESSAGE.FOUND LOOSE PIN IN CONNECTOR LT ENG FIRE CTRL HANDLE PUSH TO TEST LIGHT REPINNED CONNECTOR NO DEFAULTS NOTED OK TO CONTINUE REF AMM 31-40-00 ACFT OK FOR SVC.