As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RJTY/RJOI - EN ROUTE BETWEEN RJTY AND RJOI, NR 1 CABIN TURBOCOMPRESSOR BECAME NOISY AND PRODUCED AN OILY SMELL. THE NR 12 TC WAS SHUT OFF, AND WAS DEFERRED AT RJOI. THE NR 12 TC WAS SCHEDULED FOR REPLACEMENT DUE TO POSSIBLE BEARING/OIL SEAL FAILURE. (X)