As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT TO CVG (APPROXIMATELY 15,000 FT), THE L OIL FILTER EICAS MESSAGE APPEARED. QRH PROCEDURES WERE FOLLOWED WHICH LED TO SHUTTING DOWN THE LEFT ENGINE, DECLARING AN EMERGENCY AND LANDING AT CVG. AIRCRAFT WAS GROUNDED BY MAINTENANCE. MAINTENANCE FOUND OIL PRESSURE DIFFERENTIAL SWITCH DEFECTIVE. SWITCH WAS REPLACED IAW B767 AMM 79-35-01. OPS CHECK GOOD. NO MESSAGE PRESENT. AIRCRAFT RETURNED TO SERVICE