As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3038 THE FLIGHT ATTENDANT COMPLAINED OF A BURNING RUBBER/SMOKE ODOR IN THE CABIN. IT WAS ALSO NOTICED IN THE COCKPIT AND BY A PASSENGER. THE AIRCRAFT WAS REMOVED FROM SERVICE. PERFORMED INSPECTION OF BOTH LEFT AND RIGHT ENGINES NR 4 CARBON SEAL NO LEAKS FOUND IAW RR MM 72-30-00-200-801. NO PARTS REMOVED OR REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.