What was found
DURING FLIGHT 2723, OIL ODOR IN CABIN TO COCKPIT. NO GATE OR AIR RETURN. APPEARS TO BE WORSE WHEN BLEEDS ARE OPEN. MAINTENANCE REPLACED RT ACM IAW J/C 215181 P/N ON/OFF 776910-6, SN/OFF 841119, SN/ON 861121. OPS CHECK GOOD, NO ODOR PRESENT.