As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, THE CREW OBSERVED FLUCTUATION IN THE OIL QUANTITY INDICATION ON THE NR 2 ENGINE. THIS WAS FOLLOWED BY SMOKE APPEARING IN THE COCKPIT AND CABIN. THE FLIGHT DIVERTED TO OKA AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTION FOUND OIL IN BOTH THE ENGINE INTAKE AND EXHAUST. THE ENGINE WILL BE REPLACED.