What was found
ON FLIGHT 317, CREW REPORTED WITH APU BLEED OPEN AIR ON PACK 1 AND 2 ODOR OF OIL IN COCKPIT. AIRCRAFT REMOVED FROM SERVICE. DEFERRED PER MEL 36-6 AUTH NR 041010DM-C, PERFORMED AIR BLEED THROUGH APU IAW EMB 140 AMM 36-00-00. COULD NOT DUPLICATE SMELL MEL RESTORED, AIRCRAFT RETURNED TO SERVICE.