As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 7265 IAD. EN ROUTE TO ATL HAD A RT BLEED CAUTION MESSAGE. THIS TURNED INTO A WARNING DURING TAXI WITH BLEEDS OFF. CREW REPORTED SMELL OF OIL ODOR, ALTHOUGH BLEEDS WERE OFF. AIRCRAFT FERRIED TO CLT WHERE MAINTENANCE REMOVED AND REPLACED SENSOR IN LOOP-A.