What was found
DURING CRUISE, RECEIVED 'L ENG OIL COOL' AND 'L ENG PRICONT' STATUS MESSAGE. THE EPR BLANKED OUT AT THE LOWER POWER SETTINGS BELOW 1.1 EPR. OIL TEMPERATURES REMAINED IN NORMAL POWER RANGES. AIRCRAFT DIVERTED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE LEFT ELECTRONIC ENGINE CONTROL ALTERNATOR STATOR AND LEFT PROPULSION DISCRETE INTERFACE UNIT. SYSTEM CHECKED NORMAL ON GROUND RUN.