As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - DURING MAINTENANCE INSPECTION, AN OIL HAZE IN THE CABIN WAS REPORTED WITH 31 ENGINE HIGH OIL PRESSURE. MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE ENGINE, OPERATIONALLY AND LEAK CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.