As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4405 THE CREW REPORTED, DETECTED A SWEET OIL ODOR ON CLIMBOUT - HIGH POWER SETTINGS LOW ALTITUDE, AND A BIT ON DESCENT NOT MUCH IN CRUISE. THE FLIGHT ATTANDANT ALSO REPORTED A FAINT ODOR. THE AIRCRAFT WAS REMOVED FROM SERVICE. PERFORMED OPERATIONAL CHECK IAW ETN EM-72-034R4 AND COULD NOT DUPLICATE. NO PARTS REMOVED OR REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.