As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3038 DURING CRUISE THE CREW REPORTED A VERY STRONG "OIL" ODOR PRESENT IN CABIN AND FLIGHT DECK WITH ENGINE BLEEDS ON IN FLIGHT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE RIGHT ZERO CARBON SEAL. THE AIRCRAFT WAS RETURNED TO SERVICE.