As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOW OIL PRESSURE WARNING INTERMITTENTLY COMING INTO VIEW WITH OIL PRESSURE SHOWING 211 PSI (NORMAL), ALSO WHEN OIL PRESSURE WARNING OCCURRED N1, EPR AND FF FLUCTUATING OCCURRED. AT FL390 M.84V 4 HRS AIRBORNE EICAS MSG ENG OIL PRESS L CAUTION APPEARED OIL PRESSURE READ NORMAL AT 210 PSI (CONT'D).