Narrative:

We flew aircraft to ZZZ; parked it for 6 hours and flew it back to ZZZ1. On both legs; we got a strong oil smell right after xfer from the APU to the engine bleeds. The smell was fairly strong initially; but became less so as time passed. The smell never quite went totally away; but did get very faint. I did get a slight headache that I attributed to smelling this burned oil.

Google
 

Original NASA ASRS Text

Title: A CRJ200 ON 2 FLT LEGS EXPERIENCED STRONG OIL SMELL IMMEDIATELY AFTER BLEED XFER FROM APU TO ENG BLEEDS.

Narrative: WE FLEW ACFT TO ZZZ; PARKED IT FOR 6 HRS AND FLEW IT BACK TO ZZZ1. ON BOTH LEGS; WE GOT A STRONG OIL SMELL RIGHT AFTER XFER FROM THE APU TO THE ENG BLEEDS. THE SMELL WAS FAIRLY STRONG INITIALLY; BUT BECAME LESS SO AS TIME PASSED. THE SMELL NEVER QUITE WENT TOTALLY AWAY; BUT DID GET VERY FAINT. I DID GET A SLIGHT HEADACHE THAT I ATTRIBUTED TO SMELLING THIS BURNED OIL.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.